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Book ; Online: Single Molecule Fluorescence Imaging as a Technique for Barium Tagging in Neutrinoless Double Beta Decay

Jones, B. J. P. / McDonald, A. D. / Nygren, D. R.

2016

Abstract: Background rejection is key to success for future neutrinoless double beta decay experiments. To achieve sensitivity to effective Majorana lifetimes of $\sim10^{28}$ years, backgrounds must be controlled to better than 0.1 count per ton per year, beyond ... ...

Abstract	Background rejection is key to success for future neutrinoless double beta decay experiments. To achieve sensitivity to effective Majorana lifetimes of $\sim10^{28}$ years, backgrounds must be controlled to better than 0.1 count per ton per year, beyond the reach of any present technology. In this paper we propose a new method to identify the birth of the barium daughter ion in the neutrinoless double beta decay of $^{136}$Xe. The method adapts Single Molecule Fluorescent Imaging, a technique from biochemistry research with demonstrated single ion sensitivity. We explore possible SMFI dyes suitable for the problem of barium ion detection in high pressure xenon gas, and develop a fiber-coupled sensing system with which we can detect the presence of bulk Ba$^{++}$ ions remotely. We show that our sensor produces signal-to-background ratios as high as 85 in response to Ba$^{++}$ ions when operated in aqueous solution. We then describe the next stage of this R\&D program, which will be to demonstrate chelation and fluorescence in xenon gas. If a successful barium ion tag can be developed using SMFI adapted for high pressure xenon gas detectors, the first essentially zero background, ton-scale neutrinoless double beta decay technology could be realized. Comment: v2: fixed minor typographical errors submitted to JINST
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	621
Publishing date	2016-09-13
Publishing country	us
Document type	Book ; Online
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Article ; Online: Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay.

Thapa, P / Arnquist, I / Byrnes, N / Denisenko, A A / Foss, F W / Jones, B J P / McDonald, A D / Nygren, D R / Woodruff, K

Scientific reports

2019 Volume 9, Issue 1, Page(s) 15097

Abstract: The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double ... ...

Abstract	The nature of the neutrino is one of the major open questions in experimental nuclear and particle physics. The most sensitive known method to establish the Majorana nature of the neutrino is detection of the ultra-rare process of neutrinoless double beta decay. However, identification of one or a handful of decay events within a large mass of candidate isotope, without obfuscation by backgrounds is a formidable experimental challenge. One hypothetical method for achieving ultra- low-background neutrinoless double beta decay sensitivity is the detection of single
Language	English
Publishing date	2019-10-22
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-019-49283-x
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Book ; Online: Sensitivity of the NEXT experiment to Xe-124 double electron capture

Martínez-Lema, G. / Martínez-Vara, M. / Sorel, M. / Adams, C. / Alvarez, V. / Arazi, L. / Arnquist, I. J. / Azevedo, C. D. R / Bailey, K. / Ballester, F. / Benlloch-Rodríguez, J. M. / Borges, F. I. G. M. / Byrnes, N. / Cárcel, S. / Carrión, J. V. / Cebrián, S. / Church, E. / Conde, C. A. N. / Contreras, T. /

Díaz, G. / Díaz, J. / Diesburg, M. / Escada, J. / Esteve, R. / Felkai, R. / Fernandes, A. F. M. / Fernandes, L. M. P. / Ferrario, P. / Ferreira, A. L. / Freitas, E. D. C. / Generowicz, J. / Ghosh, S. / Goldschmidt, A. / Gómez-Cadenas, J. J. / González-Díaz, D. / Guenette, R. / Gutiérrez, R. M. / Haefner, J. / Hafidi, K. / Hauptman, J. / Henriques, C. A. O. / Morata, J. A. Hernando / Herrero, P. / Herrero, V. / Ifergan, Y. / Johnston, S. / Jones, B. J. P. / Kekic, M. / Labarga, L. / Laing, A. / Lebrun, P. / López-March, N. / Losada, M. / Mano, R. D. P. / Martín-Albo, J. / Martínez, A. / McDonald, A. D. / Monrabal, F. / Monteiro, C. M. B. / Mora, F. J. / Vidal, J. Muñoz / Novella, P. / Nygren, D. R. / Palmeiro, B. / Para, A. / Pérez, J. / Querol, M. / Redwine, A. B. / Renner, J. / Repond, J. / Riordan, S. / Ripoll, L. / García, Y. Rodríguez / Rodríguez, J. / Rogers, L. / Romeo, B. / Romo-Luque, C. / Santos, F. P. / Santos, J. M. F. dos / Simón, A. / Sofka, C. / Stiegler, T. / Toledo, J. F. / Torrent, J. / Usón, A. / Veloso, J. F. C. A. / Webb, R. / Weiss-Babai, R. / White, J. T. / Woodruff, K. / Yahlali, N.

2020

Abstract: Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized ... ...

Abstract	Double electron capture by proton-rich nuclei is a second-order nuclear process analogous to double beta decay. Despite their similarities, the decay signature is quite different, potentially providing a new channel to measure the hypothesized neutrinoless mode of these decays. The Standard-Model-allowed two-neutrino double electron capture ($2\nu ECEC$) has been predicted for a number of isotopes, but only observed in $^{78}$Kr, $^{130}$Ba and, recently, $^{124}$Xe. The sensitivity to this decay establishes a benchmark for the ultimate experimental goal, namely the potential to discover also the lepton-number-violating neutrinoless version of this process, $0\nu ECEC$. Here we report on the current sensitivity of the NEXT-White detector to $^{124}$Xe $2\nu ECEC$ and on the extrapolation to NEXT-100. Using simulated data for the $2\nu ECEC$ signal and real data from NEXT-White operated with $^{124}$Xe-depleted gas as background, we define an optimal event selection that maximizes the NEXT-White sensitivity. We estimate that, for NEXT-100 operated with xenon gas isotopically enriched with 1 kg of $^{124}$Xe and for a 5-year run, a sensitivity to the $2\nu ECEC$ half-life of $6 \times 10^{22}$ y (at 90% confidence level) or better can be reached. Comment: 23 pages, 13 figures
Keywords	High Energy Physics - Experiment ; Nuclear Experiment ; Physics - Instrumentation and Detectors
Subject code	621
Publishing date	2020-06-12
Publishing country	us
Document type	Book ; Online
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Book ; Online: Mitigation of Backgrounds from Cosmogenic $^{137}$Xe in Xenon Gas Experiments using $^{3}$He Neutron Capture

Rogers, L. / Jones, B. J. P. / Laing, A. / Pingulkar, S. / Woodruff, K. / Adams, C. / Álvarez, V. / Arazi, L. / Arnquist, I. J. / Azevedo, C. D. R / Bailey, K. / Ballester, F. / Benlloch-Rodríguez, J. M. / Borges, F. I. G. M. / Byrnes, N. / Cárcel, S. / Carrión, J. V. / Cebrián, S. / Church, E. /

Conde, C. A. N. / Contreras, T. / Díaz, G. / Díaz, J. / Diesburg, M. / Dingler, R. / Escada, J. / Esteve, R. / Felkai, R. / Fernandes, A. F. M. / Fernandes, L. M. P. / Ferrario, P. / Ferreira, A. L. / Freitas, E. D. C. / Generowicz, J. / Ghosh, S. / Goldschmidt, A. / Gómez-Cadenas, J. J. / González-Díaz, D. / Guenette, R. / Gutiérrez, R. M. / Haefner, J. / Hafidi, K. / Hauptman, J. / Henriques, C. A. O. / Morata, J. A. Hernando / Herrero, P. / Herrero, V. / Ifergan, Y. / Johnston, S. / Kekic, M. / Labarga, L. / Lebrun, P. / López-March, N. / Losada, M. / Mano, R. D. P. / Martín-Albo, J. / Martínez, A. / Martínez-Lema, G. / McDonald, A. D. / Monrabal, F. / Monteiro, C. M. B. / Mora, F. J. / Vidal, J. Muñoz / Novella, P. / Nygren, D. R. / Palmeiro, B. / Para, A. / Pérez, J. / Querol, M. / Redwine, A. B. / Renner, J. / Repond, J. / Riordan, S. / Ripoll, L. / García, Y. Rodríguez / Rodríguez, J. / Romeo, B. / Romo-Luque, C. / Santos, F. P. / Santos, J. M. F. dos / Simón, A. / Sofka, C. / Sorel, M. / Stiegler, T. / Toledo, J. F. / Torrent, J. / Usón, A. / Veloso, J. F. C. A. / Webb, R. / Weiss-Babai, R. / White, J. T. / Yahlali, N.

2020

Abstract: Xe{136} is used as the target medium for many experiments searching for \bbnonu. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that ... ...

Abstract	\Xe{136} is used as the target medium for many experiments searching for \bbnonu. Despite underground operation, cosmic muons that reach the laboratory can produce spallation neutrons causing activation of detector materials. A potential background that is difficult to veto using muon tagging comes in the form of \Xe{137} created by the capture of neutrons on \Xe{136}. This isotope decays via beta decay with a half-life of 3.8 minutes and a \Qb\ of $\sim$4.16 MeV. This work proposes and explores the concept of adding a small percentage of \He{3} to xenon as a means to capture thermal neutrons and reduce the number of activations in the detector volume. When using this technique we find the contamination from \Xe{137} activation can be reduced to negligible levels in tonne and multi-tonne scale high pressure gas xenon neutrinoless double beta decay experiments running at any depth in an underground laboratory.
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	660
Publishing date	2020-01-29
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Demonstration of Single-Barium-Ion Sensitivity for Neutrinoless Double-Beta Decay Using Single-Molecule Fluorescence Imaging.

McDonald, A D / Jones, B J P / Nygren, D R / Adams, C / Álvarez, V / Azevedo, C D R / Benlloch-Rodríguez, J M / Borges, F I G M / Botas, A / Cárcel, S / Carrión, J V / Cebrián, S / Conde, C A N / Díaz, J / Diesburg, M / Escada, J / Esteve, R / Felkai, R / Fernandes, L M P /

Ferrario, P / Ferreira, A L / Freitas, E D C / Goldschmidt, A / Gómez-Cadenas, J J / González-Díaz, D / Gutiérrez, R M / Guenette, R / Hafidi, K / Hauptman, J / Henriques, C A O / Hernandez, A I / Hernando Morata, J A / Herrero, V / Johnston, S / Labarga, L / Laing, A / Lebrun, P / Liubarsky, I / López-March, N / Losada, M / Martín-Albo, J / Martínez-Lema, G / Martínez, A / Monrabal, F / Monteiro, C M B / Mora, F J / Moutinho, L M / Muñoz Vidal, J / Musti, M / Nebot-Guinot, M / Novella, P / Palmeiro, B / Para, A / Pérez, J / Querol, M / Repond, J / Renner, J / Riordan, S / Ripoll, L / Rodríguez, J / Rogers, L / Santos, F P / Dos Santos, J M F / Simón, A / Sofka, C / Sorel, M / Stiegler, T / Toledo, J F / Torrent, J / Tsamalaidze, Z / Veloso, J F C A / Webb, R / White, J T / Yahlali, N

Physical review letters

2018 Volume 120, Issue 13, Page(s) 132504

Abstract: A new method to tag the barium daughter in the double-beta decay of ^{136}Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba^{++}) resolution at a transparent scanning surface is demonstrated. ...

Abstract	A new method to tag the barium daughter in the double-beta decay of ^{136}Xe is reported. Using the technique of single molecule fluorescent imaging (SMFI), individual barium dication (Ba^{++}) resolution at a transparent scanning surface is demonstrated. A single-step photobleach confirms the single ion interpretation. Individual ions are localized with superresolution (∼2 nm), and detected with a statistical significance of 12.9σ over backgrounds. This lays the foundation for a new and potentially background-free neutrinoless double-beta decay technology, based on SMFI coupled to high pressure xenon gas time projection chambers.
Language	English
Publishing date	2018-03-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.120.132504
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Book ; Online: Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and Xenon

Woodruff, K. / Baeza-Rubio, J. / Huerta, D. / Jones, B. J. P. / McDonald, A. D. / Norman, L. / Nygren, D. R. / Adams, C. / Álvarez, V. / Arazi, L. / Arnquist, I. J. / Azevedo, C. D. R / Bailey, K. / Ballester, F. / Benlloch-Rodríguez, J. M. / Borges, F. I. G. M. / Byrnes, N. K. / Cárcel, S. / Carrión, J. V. /

Cebrián, S. / Church, E. / Conde, C. A. N. / Contreras, T. / Denisenko, A. A. / Díaz, G. / Díaz, J. / Diesburg, M. / Escada, J. / Esteve, R. / Felkai, R. / Fernandes, A. F. M. / Fernandes, L. M. P. / Ferrario, P. / Ferreira, A. L. / Foss Jr., F. W. / Freitas, E. D. C. / Generowicz, J. / Goldschmidt, A. / González-Díaz, D. / Gómez-Cadenas, J. J. / Ghosh, S. / Guenette, R. / Gutiérrez, R. M. / Haefner, J. / Hafidi, K. / Hauptman, J. / Henriques, C. A. O. / Morata, J. A. Hernando / Herrero, P. / Herrero, V. / Johnston, S. / Kekic, M. / Labarga, L. / Laing, A. / Lebrun, P. / López-March, N. / Losada, M. / Mano, R. D. P. / Martín-Albo, J. / Martínez, A. / Martínez-Lema, G. / Monrabal, F. / Monteiro, C. M. B. / Mora, F. J. / Vidal, J. Muñoz / Novella, P. / Palmeiro, B. / Para, A. / Pérez, J. / Querol, M. / Renner, J. / Repond, J. / Riordan, S. / Ripoll, L. / Garcia, Y. Rodriguez / Rodríguez, J. / Rogers, L. / Romeo, B. / Romo-Luque, C. / Santos, F. P. / Santos, J. M. F. dos / Simón, A. / Sofka, C. / Sorel, M. / Stiegler, T. / Thapa, P. / Toledo, J. F. / Torrent, J. / Usón, A. / Veloso, J. F. C. A. / Webb, R. / Weiss-Babai, R. / White, J. T. / Yahlali, N.

2019

Abstract: Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets for ion transport in high pressure ... ...

Abstract	Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets for ion transport in high pressure xenon gas. This would require carpet functionality in regimes at higher pressures than have been previously reported, implying correspondingly larger electrode voltages than in existing systems. This mode of operation appears plausible for contemporary RF-carpet geometries due to the higher predicted breakdown strength of high pressure xenon relative to low pressure helium, the working medium in most existing RF carpet devices. In this paper we present the first measurements of the high voltage dielectric strength of xenon gas at high pressure and at the relevant RF frequencies for ion transport (in the 10 MHz range), as well as new DC and RF measurements of the dielectric strengths of high pressure argon and helium gases at small gap sizes. We find breakdown voltages that are compatible with stable RF carpet operation given the gas, pressure, voltage, materials and geometry of interest.
Keywords	Physics - Instrumentation and Detectors ; Nuclear Experiment
Subject code	621
Publishing date	2019-09-12
Publishing country	us
Document type	Book ; Online
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Article ; Online: eV-Scale Sterile Neutrino Search Using Eight Years of Atmospheric Muon Neutrino Data from the IceCube Neutrino Observatory.

Aartsen, M G / Abbasi, R / Ackermann, M / Adams, J / Aguilar, J A / Ahlers, M / Ahrens, M / Alispach, C / Amin, N M / Andeen, K / Anderson, T / Ansseau, I / Anton, G / Argüelles, C / Auffenberg, J / Axani, S / Bagherpour, H / Bai, X / Balagopal, A /

Barbano, A / Barwick, S W / Bastian, B / Basu, V / Baum, V / Baur, S / Bay, R / Beatty, J J / Becker, K-H / Becker Tjus, J / BenZvi, S / Berley, D / Bernardini, E / Besson, D Z / Binder, G / Bindig, D / Blaufuss, E / Blot, S / Bohm, C / Böser, S / Botner, O / Böttcher, J / Bourbeau, E / Bourbeau, J / Bradascio, F / Braun, J / Bron, S / Brostean-Kaiser, J / Burgman, A / Buscher, J / Busse, R S / Carver, T / Chen, C / Cheung, E / Chirkin, D / Choi, S / Clark, B A / Clark, K / Classen, L / Coleman, A / Collin, G H / Conrad, J M / Coppin, P / Correa, P / Cowen, D F / Cross, R / Dave, P / De Clercq, C / DeLaunay, J J / Dembinski, H / Deoskar, K / De Ridder, S / Desai, A / Desiati, P / de Vries, K D / de Wasseige, G / de With, M / DeYoung, T / Dharani, S / Diaz, A / Díaz-Vélez, J C / Dujmovic, H / Dunkman, M / DuVernois, M A / Dvorak, E / Ehrhardt, T / Eller, P / Engel, R / Evenson, P A / Fahey, S / Fazely, A R / Fedynitch, A / Felde, J / Fienberg, A T / Filimonov, K / Finley, C / Fox, D / Franckowiak, A / Friedman, E / Fritz, A / Gaisser, T K / Gallagher, J / Ganster, E / Garrappa, S / Gerhardt, L / Glauch, T / Glüsenkamp, T / Goldschmidt, A / Gonzalez, J G / Grant, D / Grégoire, T / Griffith, Z / Griswold, S / Günder, M / Gündüz, M / Haack, C / Hallgren, A / Halliday, R / Halve, L / Halzen, F / Hanson, K / Hardin, J / Haungs, A / Hauser, S / Hebecker, D / Heereman, D / Heix, P / Helbing, K / Hellauer, R / Henningsen, F / Hickford, S / Hignight, J / Hill, G C / Hoffman, K D / Hoffmann, R / Hoinka, T / Hokanson-Fasig, B / Hoshina, K / Huang, F / Huber, M / Huber, T / Hultqvist, K / Hünnefeld, M / Hussain, R / In, S / Iovine, N / Ishihara, A / Jansson, M / Japaridze, G S / Jeong, M / Jones, B J P / Jonske, F / Joppe, R / Kang, D / Kang, W / Kappes, A / Kappesser, D / Karg, T / Karl, M / Karle, A / Katz, U / Kauer, M / Kellermann, M / Kelley, J L / Kheirandish, A / Kim, J / Kintscher, T / Kiryluk, J / Kittler, T / Klein, S R / Koirala, R / Kolanoski, H / Köpke, L / Kopper, C / Kopper, S / Koskinen, D J / Koundal, P / Kowalski, M / Krings, K / Krückl, G / Kulacz, N / Kurahashi, N / Kyriacou, A / Lanfranchi, J L / Larson, M J / Lauber, F / Lazar, J P / Leonard, K / Leszczyńska, A / Li, Y / Liu, Q R / Lohfink, E / Lozano Mariscal, C J / Lu, L / Lucarelli, F / Ludwig, A / Lünemann, J / Luszczak, W / Lyu, Y / Ma, W Y / Madsen, J / Maggi, G / Mahn, K B M / Makino, Y / Mallik, P / Mancina, S / Mariş, I C / Maruyama, R / Mase, K / Maunu, R / McNally, F / Meagher, K / Medici, M / Medina, A / Meier, M / Meighen-Berger, S / Merz, J / Meures, T / Micallef, J / Mockler, D / Momenté, G / Montaruli, T / Moore, R W / Morse, R / Moulai, M / Muth, P / Nagai, R / Naumann, U / Neer, G / Nguyen, L V / Niederhausen, H / Nisa, M U / Nowicki, S C / Nygren, D R / Obertacke Pollmann, A / Oehler, M / Olivas, A / O'Murchadha, A / O'Sullivan, E / Palczewski, T / Pandya, H / Pankova, D V / Park, N / Parker, G K / Paudel, E N / Peiffer, P / Pérez de Los Heros, C / Philippen, S / Pieloth, D / Pieper, S / Pinat, E / Pizzuto, A / Plum, M / Popovych, Y / Porcelli, A / Prado Rodriguez, M / Price, P B / Przybylski, G T / Raab, C / Raissi, A / Rameez, M / Rauch, L / Rawlins, K / Rea, I C / Rehman, A / Reimann, R / Relethford, B / Renschler, M / Renzi, G / Resconi, E / Rhode, W / Richman, M / Riedel, B / Robertson, S / Rongen, M / Rott, C / Ruhe, T / Ryckbosch, D / Rysewyk Cantu, D / Safa, I / Sanchez Herrera, S E / Sandrock, A / Sandroos, J / Santander, M / Sarkar, S / Satalecka, K / Scharf, M / Schaufel, M / Schieler, H / Schlunder, P / Schmidt, T / Schneider, A / Schneider, J / Schröder, F G / Schumacher, L / Sclafani, S / Seckel, D / Seunarine, S / Shefali, S / Silva, M / Smithers, B / Snihur, R / Soedingrekso, J / Soldin, D / Song, M / Spiczak, G M / Spiering, C / Stachurska, J / Stamatikos, M / Stanev, T / Stein, R / Stettner, J / Steuer, A / Stezelberger, T / Stokstad, R G / Stößl, A / Strotjohann, N L / Stürwald, T / Stuttard, T / Sullivan, G W / Taboada, I / Tenholt, F / Ter-Antonyan, S / Terliuk, A / Tilav, S / Tollefson, K / Tomankova, L / Tönnis, C / Toscano, S / Tosi, D / Trettin, A / Tselengidou, M / Tung, C F / Turcati, A / Turcotte, R / Turley, C F / Ty, B / Unger, E / Unland Elorrieta, M A / Usner, M / Vandenbroucke, J / Van Driessche, W / van Eijk, D / van Eijndhoven, N / Vannerom, D / van Santen, J / Verpoest, S / Vraeghe, M / Walck, C / Wallace, A / Wallraff, M / Watson, T B / Weaver, C / Weindl, A / Weiss, M J / Weldert, J / Wendt, C / Werthebach, J / Whelan, B J / Whitehorn, N / Wiebe, K / Wiebusch, C H / Williams, D R / Wills, L / Wolf, M / Wood, T R / Woschnagg, K / Wrede, G / Wulff, J / Xu, X W / Xu, Y / Yanez, J P / Yodh, G / Yoshida, S / Yuan, T / Zhang, Z / Zöcklein, M

Physical review letters

2020 Volume 125, Issue 14, Page(s) 141801

Abstract: The results of a 3+1 sterile neutrino search using eight years of data from the IceCube Neutrino Observatory are presented. A total of 305 735 muon neutrino events are analyzed in reconstructed energy-zenith space to test for signatures of a matter- ... ...

Abstract	The results of a 3+1 sterile neutrino search using eight years of data from the IceCube Neutrino Observatory are presented. A total of 305 735 muon neutrino events are analyzed in reconstructed energy-zenith space to test for signatures of a matter-enhanced oscillation that would occur given a sterile neutrino state with a mass-squared differences between 0.01 and 100 eV^{2}. The best-fit point is found to be at sin^{2}(2θ_{24})=0.10 and Δm_{41}^{2}=4.5 eV^{2}, which is consistent with the no sterile neutrino hypothesis with a p value of 8.0%.
Language	English
Publishing date	2020-10-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.125.141801
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Article ; Online: Time-Integrated Neutrino Source Searches with 10 Years of IceCube Data.

Aartsen, M G / Ackermann, M / Adams, J / Aguilar, J A / Ahlers, M / Ahrens, M / Alispach, C / Andeen, K / Anderson, T / Ansseau, I / Anton, G / Argüelles, C / Auffenberg, J / Axani, S / Backes, P / Bagherpour, H / Bai, X / Balagopal, A / Barbano, A /

Barwick, S W / Bastian, B / Baum, V / Baur, S / Bay, R / Beatty, J J / Becker, K-H / Becker Tjus, J / BenZvi, S / Berley, D / Bernardini, E / Besson, D Z / Binder, G / Bindig, D / Blaufuss, E / Blot, S / Bohm, C / Börner, M / Böser, S / Botner, O / Böttcher, J / Bourbeau, E / Bourbeau, J / Bradascio, F / Braun, J / Bron, S / Brostean-Kaiser, J / Burgman, A / Buscher, J / Busse, R S / Carver, T / Chen, C / Cheung, E / Chirkin, D / Choi, S / Clark, K / Classen, L / Coleman, A / Collin, G H / Conrad, J M / Coppin, P / Correa, P / Cowen, D F / Cross, R / Dave, P / De Clercq, C / DeLaunay, J J / Dembinski, H / Deoskar, K / De Ridder, S / Desiati, P / de Vries, K D / de Wasseige, G / de With, M / DeYoung, T / Diaz, A / Díaz-Vélez, J C / Dujmovic, H / Dunkman, M / Dvorak, E / Eberhardt, B / Ehrhardt, T / Eller, P / Engel, R / Evenson, P A / Fahey, S / Fazely, A R / Felde, J / Filimonov, K / Finley, C / Fox, D / Franckowiak, A / Friedman, E / Fritz, A / Gaisser, T K / Gallagher, J / Ganster, E / Garrappa, S / Gerhardt, L / Ghorbani, K / Glauch, T / Glüsenkamp, T / Goldschmidt, A / Gonzalez, J G / Grant, D / Griffith, Z / Griswold, S / Günder, M / Gündüz, M / Haack, C / Hallgren, A / Halliday, R / Halve, L / Halzen, F / Hanson, K / Haungs, A / Hebecker, D / Heereman, D / Heix, P / Helbing, K / Hellauer, R / Henningsen, F / Hickford, S / Hignight, J / Hill, G C / Hoffman, K D / Hoffmann, R / Hoinka, T / Hokanson-Fasig, B / Hoshina, K / Huang, F / Huber, M / Huber, T / Hultqvist, K / Hünnefeld, M / Hussain, R / In, S / Iovine, N / Ishihara, A / Japaridze, G S / Jeong, M / Jero, K / Jones, B J P / Jonske, F / Joppe, R / Kang, D / Kang, W / Kappes, A / Kappesser, D / Karg, T / Karl, M / Karle, A / Katz, U / Kauer, M / Kelley, J L / Kheirandish, A / Kim, J / Kintscher, T / Kiryluk, J / Kittler, T / Klein, S R / Koirala, R / Kolanoski, H / Köpke, L / Kopper, C / Kopper, S / Koskinen, D J / Kowalski, M / Krings, K / Krückl, G / Kulacz, N / Kurahashi, N / Kyriacou, A / Labare, M / Lanfranchi, J L / Larson, M J / Lauber, F / Lazar, J P / Leonard, K / Leszczyńska, A / Leuermann, M / Liu, Q R / Lohfink, E / Lozano Mariscal, C J / Lu, L / Lucarelli, F / Lünemann, J / Luszczak, W / Lyu, Y / Ma, W Y / Madsen, J / Maggi, G / Mahn, K B M / Makino, Y / Mallik, P / Mallot, K / Mancina, S / Mariş, I C / Maruyama, R / Mase, K / Matis, H S / Maunu, R / McNally, F / Meagher, K / Medici, M / Medina, A / Meier, M / Meighen-Berger, S / Menne, T / Merino, G / Meures, T / Micallef, J / Mockler, D / Momenté, G / Montaruli, T / Moore, R W / Morse, R / Moulai, M / Muth, P / Nagai, R / Naumann, U / Neer, G / Niederhausen, H / Nisa, M U / Nowicki, S C / Nygren, D R / Obertacke Pollmann, A / Oehler, M / Olivas, A / O'Murchadha, A / O'Sullivan, E / Palczewski, T / Pandya, H / Pankova, D V / Park, N / Peiffer, P / Pérez de Los Heros, C / Philippen, S / Pieloth, D / Pinat, E / Pizzuto, A / Plum, M / Porcelli, A / Price, P B / Przybylski, G T / Raab, C / Raissi, A / Rameez, M / Rauch, L / Rawlins, K / Rea, I C / Reimann, R / Relethford, B / Renschler, M / Renzi, G / Resconi, E / Rhode, W / Richman, M / Robertson, S / Rongen, M / Rott, C / Ruhe, T / Ryckbosch, D / Rysewyk, D / Safa, I / Sanchez Herrera, S E / Sandrock, A / Sandroos, J / Santander, M / Sarkar, S / Satalecka, K / Schaufel, M / Schieler, H / Schlunder, P / Schmidt, T / Schneider, A / Schneider, J / Schröder, F G / Schumacher, L / Sclafani, S / Seckel, D / Seunarine, S / Shefali, S / Silva, M / Snihur, R / Soedingrekso, J / Soldin, D / Song, M / Spiczak, G M / Spiering, C / Stachurska, J / Stamatikos, M / Stanev, T / Stein, R / Steinmüller, P / Stettner, J / Steuer, A / Stezelberger, T / Stokstad, R G / Stößl, A / Strotjohann, N L / Stürwald, T / Stuttard, T / Sullivan, G W / Taboada, I / Tenholt, F / Ter-Antonyan, S / Terliuk, A / Tilav, S / Tollefson, K / Tomankova, L / Tönnis, C / Toscano, S / Tosi, D / Trettin, A / Tselengidou, M / Tung, C F / Turcati, A / Turcotte, R / Turley, C F / Ty, B / Unger, E / Unland Elorrieta, M A / Usner, M / Vandenbroucke, J / Van Driessche, W / van Eijk, D / van Eijndhoven, N / Vanheule, S / van Santen, J / Vraeghe, M / Walck, C / Wallace, A / Wallraff, M / Wandkowsky, N / Watson, T B / Weaver, C / Weindl, A / Weiss, M J / Weldert, J / Wendt, C / Werthebach, J / Whelan, B J / Whitehorn, N / Wiebe, K / Wiebusch, C H / Wille, L / Williams, D R / Wills, L / Wolf, M / Wood, J / Wood, T R / Woschnagg, K / Wrede, G / Xu, D L / Xu, X W / Xu, Y / Yanez, J P / Yodh, G / Yoshida, S / Yuan, T / Zöcklein, M

Physical review letters

2020 Volume 124, Issue 5, Page(s) 51103

Abstract: This Letter presents the results from pointlike neutrino source searches using ten years of IceCube data collected between April 6, 2008 and July 10, 2018. We evaluate the significance of an astrophysical signal from a pointlike source looking for an ... ...

Abstract	This Letter presents the results from pointlike neutrino source searches using ten years of IceCube data collected between April 6, 2008 and July 10, 2018. We evaluate the significance of an astrophysical signal from a pointlike source looking for an excess of clustered neutrino events with energies typically above ∼1 TeV among the background of atmospheric muons and neutrinos. We perform a full-sky scan, a search within a selected source catalog, a catalog population study, and three stacked Galactic catalog searches. The most significant point in the northern hemisphere from scanning the sky is coincident with the Seyfert II galaxy NGC 1068, which was included in the source catalog search. The excess at the coordinates of NGC 1068 is inconsistent with background expectations at the level of 2.9σ after accounting for statistical trials from the entire catalog. The combination of this result along with excesses observed at the coordinates of three other sources, including TXS 0506+056, suggests that, collectively, correlations with sources in the northern catalog are inconsistent with background at 3.3σ significance. The southern catalog is consistent with background. These results, all based on searches for a cumulative neutrino signal integrated over the 10 years of available data, motivate further study of these and similar sources, including time-dependent analyses, multimessenger correlations, and the possibility of stronger evidence with coming upgrades to the detector.
Language	English
Publishing date	2020-01-24
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.124.051103
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Characteristics of the Diffuse Astrophysical Electron and Tau Neutrino Flux with Six Years of IceCube High Energy Cascade Data.

Barwick, S W / Bastian, B / Baum, V / Baur, S / Bay, R / Beatty, J J / Becker, K-H / Becker Tjus, J / BenZvi, S / Berley, D / Bernardini, E / Besson, D Z / Binder, G / Bindig, D / Blaufuss, E / Blot, S / Bohm, C / Böser, S / Botner, O / Böttcher, J / Bourbeau, E / Bourbeau, J / Bradascio, F / Braun, J / Bron, S / Brostean-Kaiser, J / Burgman, A / Buscher, J / Busse, R S / Carver, T / Chen, C / Cheung, E / Chirkin, D / Choi, S / Clark, K / Classen, L / Coleman, A / Collin, G H / Conrad, J M / Coppin, P / Correa, P / Cowen, D F / Cross, R / Dave, P / De Clercq, C / DeLaunay, J J / Dembinski, H / Deoskar, K / De Ridder, S / Desiati, P / de Vries, K D / de Wasseige, G / de With, M / DeYoung, T / Diaz, A / Díaz-Vélez, J C / Dujmovic, H / Dunkman, M / Dvorak, E / Eberhardt, B / Ehrhardt, T / Eller, P / Engel, R / Evenson, P A / Fahey, S / Fazely, A R / Felde, J / Filimonov, K / Finley, C / Fox, D / Franckowiak, A / Friedman, E / Fritz, A / Gaisser, T K / Gallagher, J / Ganster, E / Garrappa, S / Gerhardt, L / Ghorbani, K / Glauch, T / Glüsenkamp, T / Goldschmidt, A / Gonzalez, J G / Grant, D / Grégoire, T / Griffith, Z / Griswold, S / Günder, M / Gündüz, M / Haack, C / Hallgren, A / Halliday, R / Halve, L / Halzen, F / Hanson, K / Haungs, A / Hebecker, D / Heereman, D / Heix, P / Helbing, K / Hellauer, R / Henningsen, F / Hickford, S / Hignight, J / Hill, G C / Hoffman, K D / Hoffmann, R / Hoinka, T / Hokanson-Fasig, B / Hoshina, K / Huang, F / Huber, M / Huber, T / Hultqvist, K / Hünnefeld, M / Hussain, R / In, S / Iovine, N / Ishihara, A / Jansson, M / Japaridze, G S / Jeong, M / Jero, K / Jones, B J P / Jonske, F / Joppe, R / Kang, D / Kang, W / Kappes, A / Kappesser, D / Karg, T / Karl, M / Karle, A / Katz, U / Kauer, M / Kelley, J L / Kheirandish, A / Kim, J / Kintscher, T / Kiryluk, J / Kittler, T / Klein, S R / Koirala, R / Kolanoski, H / Köpke, L / Kopper, C / Kopper, S / Koskinen, D J / Kowalski, M / Krings, K / Krückl, G / Kulacz, N / Kurahashi, N / Kyriacou, A / Lanfranchi, J L / Larson, M J / Lauber, F / Lazar, J P / Leonard, K / Lesiak-Bzdak, M / Leszczyńska, A / Leuermann, M / Liu, Q R / Lohfink, E / Lozano Mariscal, C J / Lu, L / Lucarelli, F / Lünemann, J / Luszczak, W / Lyu, Y / Ma, W Y / Madsen, J / Maggi, G / Mahn, K B M / Makino, Y / Mallik, P / Mallot, K / Mancina, S / Mariş, I C / Maruyama, R / Mase, K / Maunu, R / McNally, F / Meagher, K / Medici, M / Medina, A / Meier, M / Meighen-Berger, S / Merino, G / Meures, T / Micallef, J / Mockler, D / Momenté, G / Montaruli, T / Moore, R W / Morse, R / Moulai, M / Muth, P / Nagai, R / Naumann, U / Neer, G / Niederhausen, H / Nisa, M U / Nowicki, S C / Nygren, D R / Obertacke Pollmann, A / Oehler, M / Olivas, A / O'Murchadha, A / O'Sullivan, E / Palczewski, T / Pandya, H / Pankova, D V / Park, N / Peiffer, P / Pérez de Los Heros, C / Philippen, S / Pieloth, D / Pieper, S / Pinat, E / Pizzuto, A / Plum, M / Porcelli, A / Price, P B / Przybylski, G T / Raab, C / Raissi, A / Rameez, M / Rauch, L / Rawlins, K / Rea, I C / Rehman, A / Reimann, R / Relethford, B / Renschler, M / Renzi, G / Resconi, E / Rhode, W / Richman, M / Robertson, S / Rongen, M / Rott, C / Ruhe, T / Ryckbosch, D / Rysewyk, D / Safa, I / Sanchez Herrera, S E / Sandrock, A / Sandroos, J / Santander, M / Sarkar, S / Satalecka, K / Schaufel, M / Schieler, H / Schlunder, P / Schmidt, T / Schneider, A / Schneider, J / Schröder, F G / Schumacher, L / Sclafani, S / Seckel, D / Seunarine, S / Shefali, S / Silva, M / Snihur, R / Soedingrekso, J / Soldin, D / Song, M / Spiczak, G M / Spiering, C / Stachurska, J / Stamatikos, M / Stanev, T / Stein, R / Stettner, J / Steuer, A / Stezelberger, T / Stokstad, R G / Stößl, A / Strotjohann, N L / Stürwald, T / Stuttard, T / Sullivan, G W / Taboada, I / Tenholt, F / Ter-Antonyan, S / Terliuk, A / Tilav, S / Tollefson, K / Tomankova, L / Tönnis, C / Toscano, S / Tosi, D / Trettin, A / Tselengidou, M / Tung, C F / Turcati, A / Turcotte, R / Turley, C F / Ty, B / Unger, E / Unland Elorrieta, M A / Usner, M / Vandenbroucke, J / Van Driessche, W / van Eijk, D / van Eijndhoven, N / van Santen, J / Verpoest, S / Vraeghe, M / Walck, C / Wallace, A / Wallraff, M / Wandkowsky, N / Watson, T B / Weaver, C / Weindl, A / Weiss, M J / Weldert, J / Wendt, C / Werthebach, J / Whelan, B J / Whitehorn, N / Wiebe, K / Wiebusch, C H / Wille, L / Williams, D R / Wills, L / Wolf, M / Wood, J / Wood, T R / Woschnagg, K / Wrede, G / Xu, D L / Xu, X W / Xu, Y / Yanez, J P / Yodh, G / Yoshida, S / Yuan, T / Zöcklein, M

Physical review letters

2020 Volume 125, Issue 12, Page(s) 121104

Abstract: We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010-2015. Assuming standard oscillations, the astrophysical neutrinos in this dedicated cascade sample are dominated (∼90%) by ... ...

Abstract	We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010-2015. Assuming standard oscillations, the astrophysical neutrinos in this dedicated cascade sample are dominated (∼90%) by electron and tau flavors. The flux, observed in the sensitive energy range from 16 TeV to 2.6 PeV, is consistent with a single power-law model as expected from Fermi-type acceleration of high energy particles at astrophysical sources. We find the flux spectral index to be γ=2.53±0.07 and a flux normalization for each neutrino flavor of ϕ_{astro}=1.66_{-0.27}^{+0.25} at E_{0}=100 TeV, in agreement with IceCube's complementary muon neutrino results and with all-neutrino flavor fit results. In the measured energy range we reject spectral indices γ≤2.28 at ≥3σ significance level. Because of high neutrino energy resolution and low atmospheric neutrino backgrounds, this analysis provides the most detailed characterization of the neutrino flux at energies below ∼100 TeV compared to previous IceCube results. Results from fits assuming more complex neutrino flux models suggest a flux softening at high energies and a flux hardening at low energies (p value ≥0.06). The sizable and smooth flux measured below ∼100 TeV remains a puzzle. In order to not violate the isotropic diffuse gamma-ray background as measured by the Fermi Large Area Telescope, it suggests the existence of astrophysical neutrino sources characterized by dense environments which are opaque to gamma rays.
Language	English
Publishing date	2020-10-05
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.125.121104
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: A Convolutional Neural Network based Cascade Reconstruction for the IceCube Neutrino Observatory

Abbasi, R. / Ackermann, M. / Adams, J. / Aguilar, J. A. / Ahlers, M. / Ahrens, M. / Alispach, C. / Alves Jr., A. A. / Amin, N. M. / An, R. / Andeen, K. / Anderson, T. / Ansseau, I. / Anton, G. / Argüelles, C. / Axani, S. / Bai, X. / V., A. Balagopal / Barbano, A. /

Barwick, S. W. / Bastian, B. / Basu, V. / Baum, V. / Baur, S. / Bay, R. / Beatty, J. J. / Becker, K. -H. / Tjus, J. Becker / Bellenghi, C. / BenZvi, S. / Berley, D. / Bernardini, E. / Besson, D. Z. / Binder, G. / Bindig, D. / Blaufuss, E. / Blot, S. / Böser, S. / Botner, O. / Böttcher, J. / Bourbeau, E. / Bourbeau, J. / Bradascio, F. / Braun, J. / Bron, S. / Brostean-Kaiser, J. / Burgman, A. / Busse, R. S. / Campana, M. A. / Chen, C. / Chirkin, D. / Choi, S. / Clark, B. A. / Clark, K. / Classen, L. / Coleman, A. / Collin, G. H. / Conrad, J. M. / Coppin, P. / Correa, P. / Cowen, D. F. / Cross, R. / Dave, P. / De Clercq, C. / DeLaunay, J. J. / Dembinski, H. / Deoskar, K. / De Ridder, S. / Desai, A. / Desiati, P. / de Vries, K. D. / de Wasseige, G. / de With, M. / DeYoung, T. / Dharani, S. / Diaz, A. / Díaz-Vélez, J. C. / Dujmovic, H. / Dunkman, M. / DuVernois, M. A. / Dvorak, E. / Ehrhardt, T. / Eller, P. / Engel, R. / Evans, J. / Evenson, P. A. / Fahey, S. / Fazely, A. R. / Fiedlschuster, S. / Fienberg, A. T. / Filimonov, K. / Finley, C. / Fischer, L. / Fox, D. / Franckowiak, A. / Friedman, E. / Fritz, A. / Fürst, P. / Gaisser, T. K. / Gallagher, J. / Ganster, E. / Garrappa, S. / Gerhardt, L. / Ghadimi, A. / Glaser, C. / Glauch, T. / Glüsenkamp, T. / Goldschmidt, A. / Gonzalez, J. G. / Goswami, S. / Grant, D. / Grégoire, T. / Griffith, Z. / Griswold, S. / Gündüz, M. / Haack, C. / Hallgren, A. / Halliday, R. / Halve, L. / Halzen, F. / Minh, M. Ha / Hanson, K. / Hardin, J. / Harnisch, A. A. / Haungs, A. / Hauser, S. / Hebecker, D. / Helbing, K. / Henningsen, F. / Hettinger, E. C. / Hickford, S. / Hignight, J. / Hill, C. / Hill, G. C. / Hoffman, K. D. / Hoffmann, R. / Hoinka, T. / Hokanson-Fasig, B. / Hoshina, K. / Huang, F. / Huber, M. / Huber, T. / Hultqvist, K. / Hünnefeld, M. / Hussain, R. / In, S. / Iovine, N. / Ishihara, A. / Jansson, M. / Japaridze, G. S. / Jeong, M. / Jones, B. J. P. / Joppe, R. / Kang, D. / Kang, W. / Kang, X. / Kappes, A. / Kappesser, D. / Karg, T. / Karl, M. / Karle, A. / Katz, U. / Kauer, M. / Kellermann, M. / Kelley, J. L. / Kheirandish, A. / Kim, J. / Kin, K. / Kintscher, T. / Kiryluk, J. / Klein, S. R. / Koirala, R. / Kolanoski, H. / Köpke, L. / Kopper, C. / Kopper, S. / Koskinen, D. J. / Koundal, P. / Kovacevich, M. / Kowalski, M. / Krings, K. / Krückl, G. / Kurahashi, N. / Kyriacou, A. / Gualda, C. Lagunas / Lanfranchi, J. L. / Larson, M. J. / Lauber, F. / Lazar, J. P. / Leonard, K. / Leszczyńska, A. / Li, Y. / Liu, Q. R. / Lohfink, E. / Mariscal, C. J. Lozano / Lu, L. / Lucarelli, F. / Ludwig, A. / Luszczak, W. / Lyu, Y. / Ma, W. Y. / Madsen, J. / Mahn, K. B. M. / Makino, Y. / Mallik, P. / Mancina, S. / Mari{ş}, I. C. / Maruyama, R. / Mase, K. / McNally, F. / Meagher, K. / Medina, A. / Meier, M. / Meighen-Berger, S. / Merz, J. / Micallef, J. / Mockler, D. / Momenté, G. / Montaruli, T. / Moore, R. W. / Morik, K. / Morse, R. / Moulai, M. / Naab, R. / Nagai, R. / Naumann, U. / Necker, J. / Nguy{\~{ê}}n, L. V. / Niederhausen, H. / Nisa, M. U. / Nowicki, S. C. / Nygren, D. R. / Pollmann, A. Obertacke / Oehler, M. / Olivas, A. / O'Sullivan, E. / Pandya, H. / Pankova, D. V. / Park, N. / Parker, G. K. / Paudel, E. N. / Peiffer, P. / Heros, C. Pérez de los / Philippen, S. / Pieloth, D. / Pieper, S. / Pizzuto, A. / Plum, M. / Popovych, Y. / Porcelli, A. / Rodriguez, M. Prado / Price, P. B. / Pries, B. / Przybylski, G. T. / Raab, C. / Raissi, A. / Rameez, M. / Rawlins, K. / Rea, I. C. / Rehman, A. / Reimann, R. / Renschler, M. / Renzi, G. / Resconi, E. / Reusch, S. / Rhode, W. / Richman, M. / Riedel, B. / Robertson, S. / Roellinghoff, G. / Rongen, M. / Rott, C. / Ruhe, T. / Ryckbosch, D. / Cantu, D. Rysewyk / Safa, I. / Herrera, S. E. Sanchez / Sandrock, A. / Sandroos, J. / Santander, M. / Sarkar, S. / Satalecka, K. / Scharf, M. / Schaufel, M. / Schieler, H. / Schlunder, P. / Schmidt, T. / Schneider, A. / Schneider, J. / Schröder, F. G. / Schumacher, L. / Sclafani, S. / Seckel, D. / Seunarine, S. / Sharma, A. / Shefali, S. / Silva, M. / Skrzypek, B. / Smithers, B. / Snihur, R. / Soedingrekso, J. / Soldin, D. / Spiczak, G. M. / Spiering, C. / Stachurska, J. / Stamatikos, M. / Stanev, T. / Stein, R. / Stettner, J. / Steuer, A. / Stezelberger, T. / Stokstad, R. G. / Stürwald, T. / Stuttard, T. / Sullivan, G. W. / Taboada, I. / Tenholt, F. / Ter-Antonyan, S. / Tilav, S. / Tischbein, F. / Tollefson, K. / Tomankova, L. / Tönnis, C. / Toscano, S. / Tosi, D. / Trettin, A. / Tselengidou, M. / Tung, C. F. / Turcati, A. / Turcotte, R. / Turley, C. F. / Twagirayezu, J. P. / Ty, B. / Elorrieta, M. A. Unland / Valtonen-Mattila, N. / Vandenbroucke, J. / van Eijk, D. / van Eijndhoven, N. / Vannerom, D. / van Santen, J. / Verpoest, S. / Vraeghe, M. / Walck, C. / Wallace, A. / Watson, T. B. / Weaver, C. / Weindl, A. / Weiss, M. J. / Weldert, J. / Wendt, C. / Werthebach, J. / Weyrauch, M. / Whelan, B. J. / Whitehorn, N. / Wiebe, K. / Wiebusch, C. H. / Williams, D. R. / Wolf, M. / Woschnagg, K. / Wrede, G. / Wulff, J. / Xu, X. W. / Xu, Y. / Yanez, J. P. / Yoshida, S. / Yuan, T. / Zhang, Z.

2021

Abstract: Continued improvements on existing reconstruction methods are vital to the success of high-energy physics experiments, such as the IceCube Neutrino Observatory. In IceCube, further challenges arise as the detector is situated at the geographic South Pole ...

Abstract	Continued improvements on existing reconstruction methods are vital to the success of high-energy physics experiments, such as the IceCube Neutrino Observatory. In IceCube, further challenges arise as the detector is situated at the geographic South Pole where computational resources are limited. However, to perform real-time analyses and to issue alerts to telescopes around the world, powerful and fast reconstruction methods are desired. Deep neural networks can be extremely powerful, and their usage is computationally inexpensive once the networks are trained. These characteristics make a deep learning-based approach an excellent candidate for the application in IceCube. A reconstruction method based on convolutional architectures and hexagonally shaped kernels is presented. The presented method is robust towards systematic uncertainties in the simulation and has been tested on experimental data. In comparison to standard reconstruction methods in IceCube, it can improve upon the reconstruction accuracy, while reducing the time necessary to run the reconstruction by two to three orders of magnitude. Comment: 39 pages, 15 figures, submitted to Journal of Instrumentation; added references
Keywords	High Energy Physics - Experiment ; Computer Science - Machine Learning
Subject code	006
Publishing date	2021-01-27
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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In stock of ZB MED Bonn / Germany

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In stock of ZB MED Bonn / Germany

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Inter-library loan at ZB MED