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Abstract	We report on a measurement of astrophysical tau neutrinos with 9.7 yr of IceCube data. Using convolutional neural networks trained on images derived from simulated events, seven candidate ν_{τ} events were found with visible energies ranging from roughly 20 TeV to 1 PeV and a median expected parent ν_{τ} energy of about 200 TeV. Considering backgrounds from astrophysical and atmospheric neutrinos, and muons from π^{±}/K^{±} decays in atmospheric air showers, we obtain a total estimated background of about 0.5 events, dominated by non-ν_{τ} astrophysical neutrinos. Thus, we rule out the absence of astrophysical ν_{τ} at the 5σ level. The measured astrophysical ν_{τ} flux is consistent with expectations based on previously published IceCube astrophysical neutrino flux measurements and neutrino oscillations.
Sprache	Englisch
Erscheinungsdatum	2024-04-29
Erscheinungsland	United States
Dokumenttyp	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.132.151001
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

Abstract

We report on a measurement of astrophysical tau neutrinos with 9.7 yr of IceCube data. Using convolutional neural networks trained on images derived from simulated events, seven candidate ν_{τ} events were found with visible energies ranging from roughly 20 TeV to 1 PeV and a median expected parent ν_{τ} energy of about 200 TeV. Considering backgrounds from astrophysical and atmospheric neutrinos, and muons from π^{±}/K^{±} decays in atmospheric air showers, we obtain a total estimated background of about 0.5 events, dominated by non-ν_{τ} astrophysical neutrinos. Thus, we rule out the absence of astrophysical ν_{τ} at the 5σ level. The measured astrophysical ν_{τ} flux is consistent with expectations based on previously published IceCube astrophysical neutrino flux measurements and neutrino oscillations.

Sprache

Englisch

Erscheinungsdatum

2024-04-29

Erscheinungsland

United States

Dokumenttyp

Journal Article

ZDB-ID

208853-8

ISSN

1079-7114 ; 0031-9007

ISSN (online)

1079-7114

ISSN

0031-9007

DOI

10.1103/PhysRevLett.132.151001

Datenquelle

MEDical Literature Analysis and Retrieval System OnLINE

Buch ; Online: D-Egg

Abbasi, R. / Ackermann, M. / Adams, J. / Aggarwal, N. / Aguilar, J. A. / Ahlers, M. / Alameddine, J. M. / Alves Jr., A. A. / Amin, N. M. / Andeen, K. / Anderson, T. / Anton, G. / Argüelles, C. / Ashida, Y. / Athanasiadou, S. / Axani, S. N. / Bai, X. / V., A. Balagopal / Baricevic, M. /

Barwick, S. W. / Basu, V. / Bay, R. / Beatty, J. J. / Becker, K. -H. / Tjus, J. Becker / Beise, J. / Bellenghi, C. / BenZvi, S. / Berley, D. / Bernardini, E. / Besson, D. Z. / Binder, G. / Bindig, D. / Blaufuss, E. / Blot, S. / Bontempo, F. / Book, J. Y. / Borowka, J. / Meneguolo, C. Boscolo / Böser, S. / Botner, O. / Böttcher, J. / Bourbeau, E. / Braun, J. / Brinson, B. / Brostean-Kaiser, J. / Burley, R. T. / Busse, R. S. / Campana, M. A. / Carloni, K. / Carnie-Bronca, E. G. / Chen, C. / Chen, Z. / Chirkin, D. / Choi, S. / Clark, B. A. / Classen, L. / Coleman, A. / Collin, G. H. / Connolly, A. / Conrad, J. M. / Coppin, P. / Correa, P. / Countryman, S. / Cowen, D. F. / Dappen, C. / Dave, P. / De Clercq, C. / DeLaunay, J. J. / López, D. Delgado / Dembinski, H. / Deoskar, K. / Desai, A. / Desiati, P. / de Vries, K. D. / de Wasseige, G. / DeYoung, T. / Diaz, A. / Díaz-Vélez, J. C. / Dittmer, M. / Domi, A. / Dujmovic, H. / DuVernois, M. A. / Ehrhardt, T. / Eller, P. / Engel, R. / Erpenbeck, H. / Evans, J. / Evenson, P. A. / Fan, K. L. / Fazely, A. R. / Fedynitch, A. / Feigl, N. / Fiedlschuster, S. / Fienberg, A. T. / Finley, C. / Fischer, L. / Fox, D. / Franckowiak, A. / Friedman, E. / Fritz, A. / Fürst, P. / Gaisser, T. K. / Gallagher, J. / Ganster, E. / Garcia, A. / Garrappa, S. / Gerhardt, L. / Ghadimi, A. / Glaser, C. / Glauch, T. / Glüsenkamp, T. / Goehlke, N. / Gonzalez, J. G. / Goswami, S. / Grant, D. / Gray, S. J. / Grégoire, T. / Griffin, S. / Griswold, S. / Günther, C. / Gutjahr, P. / Haack, C. / Hallgren, A. / Halliday, R. / Halve, L. / Halzen, F. / Hamdaoui, H. / Minh, M. Ha / Hanson, K. / Hardin, J. / Harnisch, A. A. / Hatch, P. / Haungs, A. / Helbing, K. / Hellrung, J. / Henningsen, F. / Heuermann, L. / Hickford, S. / Hidvegi, A. / Hill, C. / Hill, G. C. / Hoffman, K. D. / Hoshina, K. / Hou, W. / Huber, T. / Hultqvist, K. / Hünnefeld, M. / Hussain, R. / Hymon, K. / In, S. / Iovine, N. / Ishihara, A. / Jansson, M. / Japaridze, G. S. / Jeong, M. / Jin, M. / Jones, B. J. P. / Kang, D. / Kang, W. / Kang, X. / Kappes, A. / Kappesser, D. / Kardum, L. / Karg, T. / Karl, M. / Karle, A. / Katz, U. / Kauer, M. / Kelley, J. L. / Kheirandish, A. / Kin, K. / Kiryluk, J. / Klein, S. R. / Kochocki, A. / Koirala, R. / Kolanoski, H. / Kontrimas, T. / Köpke, L. / Kopper, C. / Koskinen, D. J. / Koundal, P. / Kovacevich, M. / Kowalski, M. / Kozynets, T. / Kruiswijk, K. / Krupczak, E. / Kumar, A. / Kun, E. / Kurahashi, N. / Lad, N. / Gualda, C. Lagunas / Lamoureux, M. / Larson, M. J. / Lauber, F. / Lazar, J. P. / Lee, J. W. / DeHolton, K. Leonard / Leszczyńska, A. / Lincetto, M. / Liu, Q. R. / Liubarska, M. / Lohfink, E. / Love, C. / 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. / Mancina, S. / Sainte, W. Marie / Mariş, I. C. / Marka, S. / Marka, Z. / Marsee, M. / Martinez-Soler, I. / Maruyama, R. / Mayhew, F. / McElroy, T. / McNally, F. / Mead, J. V. / Meagher, K. / Mechbal, S. / Medina, A. / Meier, M. / Meighen-Berger, S. / Merckx, Y. / Merten, L. / Meures, T. / Micallef, J. / Mockler, D. / Montaruli, T. / Moore, R. W. / Morii, Y. / Morse, R. / Moulai, M. / Mukherjee, T. / Naab, R. / Nagai, R. / Naumann, U. / Necker, J. / Neumann, M. / Niederhausen, H. / Nisa, M. U. / Noell, A. / Nowicki, S. C. / Pollmann, A. Obertacke / Oehler, M. / Oeyen, B. / Olivas, A. / Orsoe, R. / Osborn, J. / O'Sullivan, E. / Pandya, H. / Pankova, D. V. / Park, N. / Parker, G. K. / Paudel, E. N. / Paul, L. / Heros, C. Pérez de los / Peterson, J. / Philippen, S. / Pieper, S. / Pizzuto, A. / Plum, M. / Popovych, Y. / Rodriguez, M. Prado / Pries, B. / Procter-Murphy, R. / Przybylski, G. T. / Raab, C. / Rack-Helleis, J. / Rawlins, K. / Rechav, Z. / Rehman, A. / Reichherzer, P. / Renzi, G. / Resconi, E. / Reusch, S. / Rhode, W. / Richman, M. / Riedel, B. / Roberts, E. J. / Robertson, S. / Rodan, S. / Roellinghoff, G. / Rongen, M. / Rott, C. / Ruhe, T. / Ruohan, L. / Ryckbosch, D. / Safa, I. / Saffer, J. / Salazar-Gallegos, D. / Sampathkumar, P. / Herrera, S. E. Sanchez / Sandrock, A. / Sandstrom, P. / Santander, M. / Sarkar, S. / Savelberg, J. / Savina, P. / Schaufel, M. / Schieler, H. / Schindler, S. / Schlüter, B. / Schmidt, T. / Schneider, J. / Schröder, F. G. / Schumacher, L. / Schwefer, G. / Sclafani, S. / Seckel, D. / Seunarine, S. / Sharma, A. / Shefali, S. / Shimizu, N. / Shimizu, S. / Silva, M. / Skrzypek, B. / Smithers, B. / Snihur, R. / Soedingrekso, J. / Søgaard, A. / Soldin, D. / Spannfellner, C. / Spiczak, G. M. / Spiering, C. / Stamatikos, M. / Stanev, T. / Stein, R. / Stezelberger, T. / Stürwald, T. / Stuttard, T. / Sullivan, G. W. / Taboada, I. / Ter-Antonyan, S. / Thompson, W. G. / Thwaites, J. / Tilav, S. / Tollefson, K. / Tönnis, C. / Toscano, S. / Tosi, D. / Trettin, A. / Tung, C. F. / Turcotte, R. / Twagirayezu, J. P. / Ty, B. / Elorrieta, M. A. Unland / Upshaw, K. / Valtonen-Mattila, N. / Vandenbroucke, J. / van Eijndhoven, N. / Vannerom, D. / van Santen, J. / Vara, J. / Veitch-Michaelis, J. / Verpoest, S. / Veske, D. / Walck, C. / Watson, T. B. / Weaver, C. / Weber, J. / Weigel, P. / Weindl, A. / Weldert, J. / Wendt, C. / Werthebach, J. / Weyrauch, M. / Whitehorn, N. / Wiebusch, C. H. / Willey, N. / Williams, D. R. / Wisher, I. / Wolf, M. / Wrede, G. / Wulff, J. / Xu, X. W. / Yanez, J. P. / Yildizci, E. / Yoshida, S. / Yu, F. / Yu, S. / Yuan, T. / Zhang, Z. / Zhelnin, P.

a Dual PMT Optical Module for IceCube

2022

Abstract: The D-Egg, an acronym for ``Dual optical sensors in an Ellipsoid Glass for Gen2,'' is one of the optical modules designed for future extensions of the IceCube experiment at the South Pole. The D-Egg has an elongated-sphere shape to maximize the photon- ... ...

Abstract	The D-Egg, an acronym for ``Dual optical sensors in an Ellipsoid Glass for Gen2,'' is one of the optical modules designed for future extensions of the IceCube experiment at the South Pole. The D-Egg has an elongated-sphere shape to maximize the photon-sensitive effective area while maintaining a narrow diameter to reduce the cost and the time needed for drilling of the deployment holes in the glacial ice for the optical modules at depths up to 2700 meters. The D-Egg design is utilized for the IceCube Upgrade, the next stage of the IceCube project also known as IceCube-Gen2 Phase 1, where nearly half of the optical sensors to be deployed are D-Eggs. With two 8-inch high-quantum efficiency photomultiplier tubes (PMTs) per module, D-Eggs offer an increased effective area while retaining the successful design of the IceCube digital optical module (DOM). The convolution of the wavelength-dependent effective area and the Cherenkov emission spectrum provides an effective photodetection sensitivity that is 2.8 times larger than that of IceCube DOMs. The signal of each of the two PMTs is digitized using ultra-low-power 14-bit analog-to-digital converters with a sampling frequency of 240 MSPS, enabling a flexible event triggering, as well as seamless and lossless event recording of single-photon signals to multi-photons exceeding 200 photoelectrons within 10 nanoseconds. Mass production of D-Eggs has been completed, with 277 out of the 310 D-Eggs produced to be used in the IceCube Upgrade. In this paper, we report the des\ ign of the D-Eggs, as well as the sensitivity and the single to multi-photon detection performance of mass-produced D-Eggs measured in a laboratory using the built-in data acquisition system in each D-Egg optical sensor module. Comment: 26 pages, 18 figures, 1 table
Schlagwörter	Astrophysics - Instrumentation and Methods for Astrophysics ; High Energy Physics - Experiment
Thema/Rubrik (Code)	621
Erscheinungsdatum	2022-12-29
Erscheinungsland	us
Dokumenttyp	Buch ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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