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  1. Article ; Online: Observation of νμ → ντ oscillations in the CNGS beam with the OPERA experiment

    De Serio M.

    EPJ Web of Conferences, Vol 95, p

    2015  Volume 03005

    Abstract: The OPERA long-baseline neutrino experiment was exposed to the CNGS νμ beam from 2008 to 2012, collecting 19505 interactions in the target. The evidence for oscillated ντ appearance, based on the observation of three ντ candidate events, has been ... ...

    Abstract The OPERA long-baseline neutrino experiment was exposed to the CNGS νμ beam from 2008 to 2012, collecting 19505 interactions in the target. The evidence for oscillated ντ appearance, based on the observation of three ντ candidate events, has been previously reported. A fourth candidate event has been recently found in an extended data sample, corresponding to about 89% of the final statistics. The absence of a signal from νμ → ντ oscillations is currently excluded at 4.2σ. The status of the analysis is described in detail with special emphasis on the procedures applied for the selection of signal candidate events and the assessment of efficiencies and background. The fourth ντ candidate event is presented and the significance of the observation is discussed.
    Keywords Science ; Q ; Physics ; QC1-999
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Observation of νμ → ντ oscillations in the CNGS beam with the OPERA experiment

    De Serio M.

    EPJ Web of Conferences, Vol 95, p

    2015  Volume 03005

    Abstract: The OPERA long-baseline neutrino experiment was exposed to the CNGS νμ beam from 2008 to 2012, collecting 19505 interactions in the target. The evidence for oscillated ντ appearance, based on the observation of three ντ candidate events, has been ... ...

    Abstract The OPERA long-baseline neutrino experiment was exposed to the CNGS νμ beam from 2008 to 2012, collecting 19505 interactions in the target. The evidence for oscillated ντ appearance, based on the observation of three ντ candidate events, has been previously reported. A fourth candidate event has been recently found in an extended data sample, corresponding to about 89% of the final statistics. The absence of a signal from νμ → ντ oscillations is currently excluded at 4.2σ. The status of the analysis is described in detail with special emphasis on the procedures applied for the selection of signal candidate events and the assessment of efficiencies and background. The fourth ντ candidate event is presented and the significance of the observation is discussed.
    Keywords Science ; Q ; Physics ; QC1-999
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Book ; Thesis: A near-field Raman method to study the liquid-liquid interface

    De Serio, Martina

    2004  

    Author's details Martina De Serio
    Language English
    Size 2 Mikrofiches, Ill., graph. Darst
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Eidgen. Techn. Hochschule, Diss.--Zürich, 2004
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  4. Book ; Online: High-rate tests on Resistive Plate Chambers operated with eco-friendly gas mixtures

    Abbrescia, M. / Aielli, G. / Aly, R. / Arena, M. C. / Barroso, M. / Benussi, L. / Bianco, S. / Bordon, F. / Boscherini, D. / Bruni, A. / Buontempo, S. / Busato, M. / Camarri, P. / Cardarelli, R. / Congedo, L. / Damiao, D. De Jesus / De Serio, M. / Di Ciaccio, A. / Di Stante, L. /
    Dupieux, P. / Eysermans, J. / Ferretti, A. / Galati, G. / Gagliardi, M. / Guida, R. / Iaselli, G. / Joly, B. / Lee, K. S. / Liberti, B. / Ramirez, D. Lucero / Mandelli, B. / Manen, S. P. / Massa, L. / Pastore, A. / Pastori, E. / Piccolo, D. / Pizzimento, L. / Polini, A. / Proto, G. / Pugliese, G. / Quaglia, L. / Ramos, D. / Rigoletti, G. / Rocchi, A. / Romano, M. / Samalan, A. / Salvini, P. / Santonico, R. / Saviano, G. / Simone, S. / Terlizzi, L. / Tytgat, M. / Vercellin, E. / Verzeroli, M. / Zaganidis, N.

    2023  

    Abstract: Results obtained by the RPC ECOgas@GIF++ Collaboration, using Resistive Plate Chambers operated with new, eco-friendly gas mixtures, based on Tetrafluoropropene and carbon dioxide, are shown and discussed in this paper. Tests aimed to assess the ... ...

    Abstract Results obtained by the RPC ECOgas@GIF++ Collaboration, using Resistive Plate Chambers operated with new, eco-friendly gas mixtures, based on Tetrafluoropropene and carbon dioxide, are shown and discussed in this paper. Tests aimed to assess the performance of this kind of detectors in high-irradiation conditions, analogous to the ones foreseen for the coming years at the Large Hadron Collider experiments, were performed, and demonstrate a performance basically similar to the one obtained with the gas mixtures currently in use, based on Tetrafluoroethane, which is being progressively phased out for its possible contribution to the greenhouse effect. Long term aging tests are also being carried out, with the goal to demonstrate the possibility of using these eco-friendly gas mixtures during the whole High Luminosity phase of the Large Hadron Collider.

    Comment: Submitted to European Physical Journal C on October 24, 2023, 15 pages, 14 figures
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2023-11-14
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Book ; Online: Preliminary results on the long term operation of RPCs with eco-friendly gas mixtures under irradiation at the CERN Gamma Irradiation Facility

    Quaglia, L. / Ramos, D. / Abbrescia, M. / Aielli, G. / Aly, R. / Arena, M. C. / Barroso, M. / Benussi, L. / Bianco, S. / Boscherini, D. / Bordon, F. / Bruni, A. / Buontempo, S. / Busato, M. / Camarri, P. / Cardarelli, R. / Congedo, L. / Damiao, D. De Jesus / De Serio, M. /
    Di Ciacco, A. / Di Stante, L. / Dupieux, P. / Eysermans, J. / Ferretti, A. / Galati, G. / Gagliardi, M. / Garetti, S. / Guida, R. / Iaselli, G. / Joly, B. / Juks, S. A. / Lee, K. S. / Liberti, B. / Ramirez, D. Lucero / Mandelli, B. / Manen, S. P. / Massa, L. / Pastore, A. / Pastori, E. / Piccolo, D. / Pizzimento, L. / Polini, A. / Proto, G. / Pugliese, G. / Rigoletti, G. / Rocchi, A. / Romano, M. / Samalan, A. / Salvini, P. / Santonico, R. / Saviano, G. / Sessa, M. / Simone, S. / Terlizzi, L. / Tytgat, M. / Vercellin, E. / Verzeroli, M. / Zaganidis, N.

    2023  

    Abstract: Since 2019 a collaboration between researchers from various institutes and experiments (i.e. ATLAS, CMS, ALICE, LHCb/SHiP and the CERN EP-DT group), has been operating several RPCs with diverse electronics, gas gap thicknesses and detector layouts at the ...

    Abstract Since 2019 a collaboration between researchers from various institutes and experiments (i.e. ATLAS, CMS, ALICE, LHCb/SHiP and the CERN EP-DT group), has been operating several RPCs with diverse electronics, gas gap thicknesses and detector layouts at the CERN Gamma Irradiation Facility (GIF++). The studies aim at assessing the performance of RPCs when filled with new eco-friendly gas mixtures in avalanche mode and in view of evaluating possible ageing effects after long high background irradiation periods, e.g. High-Luminosity LHC phase. This challenging research is also part of a task of the European AidaInnova project. A promising eco-friendly gas identified for RPC operation is the tetrafluoruropropene (C$_{3}$H$_{2}$F$_{4}$, commercially known as HFO-1234ze) that has been studied at the CERN GIF++ in combination with different percentages of CO$_2$. Between the end of 2021 and 2022 several beam tests have been carried out to establish the performance of RPCs operated with such mixtures before starting the irradiation campaign for the ageing study. Results of these tests for different RPCs layouts and different gas mixtures, under increasing background rates are presented here, together with the preliminary outcome of the detector ageing tests.
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2023-11-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Observation of Collider Muon Neutrinos with the SND@LHC Experiment.

    Albanese, R / Alexandrov, A / Alicante, F / Anokhina, A / Asada, T / Battilana, C / Bay, A / Betancourt, C / Biswas, R / Blanco Castro, A / Bogomilov, M / Bonacorsi, D / Bonivento, W M / Bordalo, P / Boyarsky, A / Buontempo, S / Campanelli, M / Camporesi, T / Canale, V /
    Castro, A / Centanni, D / Cerutti, F / Chernyavskiy, M / Choi, K-Y / Cholak, S / Cindolo, F / Climescu, M / Conaboy, A P / Dallavalle, G M / Davino, D / de Bryas, P T / De Lellis, G / De Magistris, M / De Roeck, A / De Rújula, A / De Serio, M / De Simone, D / Di Crescenzo, A / Donà, R / Durhan, O / Fabbri, F / Fedotovs, F / Ferrillo, M / Ferro-Luzzi, M / Fini, R A / Fiorillo, A / Fresa, R / Funk, W / Garay Walls, F M / Golovatiuk, A / Golutvin, A / Graverini, E / Guler, A M / Guliaeva, V / Haefeli, G J / Helo Herrera, J C / van Herwijnen, E / Iengo, P / Ilieva, S / Infantino, A / Iuliano, A / Jacobsson, R / Kamiscioglu, C / Kauniskangas, A M / Khalikov, E / Kim, S H / Kim, Y G / Klioutchnikov, G / Komatsu, M / Konovalova, N / Kovalenko, S / Kuleshov, S / Lacker, H M / Lantwin, O / Lasagni Manghi, F / Lauria, A / Lee, K Y / Lee, K S / Lo Meo, S / Loschiavo, V P / Marcellini, S / Margiotta, A / Mascellani, A / Miano, A / Mikulenko, A / Montesi, M C / Navarria, F L / Ogawa, S / Okateva, N / Ovchynnikov, M / Paggi, G / Park, B D / Pastore, A / Perrotta, A / Podgrudkov, D / Polukhina, N / Prota, A / Quercia, A / Ramos, S / Reghunath, A / Roganova, T / Ronchetti, F / Rovelli, T / Ruchayskiy, O / Ruf, T / Sabate Gilarte, M / Samoilov, M / Scalera, V / Schneider, O / Sekhniaidze, G / Serra, N / Shaposhnikov, M / Shevchenko, V / Shchedrina, T / Shchutska, L / Shibuya, H / Simone, S / Siroli, G P / Sirri, G / Soares, G / Soto Sandoval, O J / Spurio, M / Starkov, N / Timiryasov, I / Tioukov, V / Tramontano, F / Trippl, C / Ursov, E / Ustyuzhanin, A / Vankova-Kirilova, G / Verguilov, V / Viegas Guerreiro Leonardo, N / Vilela, C / Visone, C / Wanke, R / Yaman, E / Yazici, C / Yoon, C S / Zaffaroni, E / Zamora Saa, J

    Physical review letters

    2023  Volume 131, Issue 3, Page(s) 31802

    Abstract: We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A dataset of proton-proton collisions at sqrt[s]=13.6  TeV collected by SND@LHC in 2022 is used, corresponding to an integrated ... ...

    Abstract We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A dataset of proton-proton collisions at sqrt[s]=13.6  TeV collected by SND@LHC in 2022 is used, corresponding to an integrated luminosity of 36.8  fb^{-1}. The search is based on information from the active electronic components of the SND@LHC detector, which covers the pseudorapidity region of 7.2<η<8.4, inaccessible to the other experiments at the collider. Muon neutrino candidates are identified through their charged-current interaction topology, with a track propagating through the entire length of the muon detector. After selection cuts, 8 ν_{μ} interaction candidate events remain with an estimated background of 0.086 events, yielding a significance of about 7 standard deviations for the observed ν_{μ} signal.
    Language English
    Publishing date 2023-08-04
    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.131.031802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: OPERA tau neutrino charged current interactions.

    Agafonova, N / Alexandrov, A / Anokhina, A / Aoki, S / Ariga, A / Ariga, T / Bertolin, A / Bozza, C / Brugnera, R / Buonaura, A / Buontempo, S / Chernyavskiy, M / Chukanov, A / Consiglio, L / D'Ambrosio, N / De Lellis, G / De Serio, M / Del Amo Sanchez, P / Di Crescenzo, A /
    Di Ferdinando, D / Di Marco, N / Dmitrievsky, S / Dracos, M / Duchesneau, D / Dusini, S / Dzhatdoev, T / Ebert, J / Ereditato, A / Fini, R A / Fornari, F / Fukuda, T / Galati, G / Garfagnini, A / Gentile, V / Goldberg, J / Gorbunov, S / Gornushkin, Y / Grella, G / Guler, A M / Gustavino, C / Hagner, C / Hara, T / Hayakawa, T / Hollnagel, A / Ishiguro, K / Iuliano, A / Jakovčić, K / Jollet, C / Kamiscioglu, C / Kamiscioglu, M / Kim, S H / Kitagawa, N / Kliček, B / Kodama, K / Komatsu, M / Kose, U / Kreslo, I / Laudisio, F / Lauria, A / Lavasa, A / Longhin, A / Loverre, P / Malgin, A / Mandrioli, G / Matsuo, T / Matveev, V / Mauri, N / Medinaceli, E / Meregaglia, A / Mikado, S / Miyanishi, M / Mizutani, F / Monacelli, P / Montesi, M C / Morishima, K / Muciaccia, M T / Naganawa, N / Naka, T / Nakamura, M / Nakano, T / Niwa, K / Ogawa, S / Okateva, N / Ozaki, K / Paoloni, A / Park, B D / Pasqualini, L / Pastore, A / Patrizii, L / Pessard, H / Podgrudkov, D / Polukhina, N / Pozzato, M / Pupilli, F / Roda, M / Roganova, T / Rokujo, H / Rosa, G / Ryazhskaya, O / Sato, O / Shakirianova, I / Schembri, A / Shchedrina, T / Shibayama, E / Shibuya, H / Shiraishi, T / Šimko, T / Simone, S / Sirignano, C / Sirri, G / Sotnikov, A / Spinetti, M / Stanco, L / Starkov, N / Stellacci, S M / Stipčević, M / Strolin, P / Takahashi, S / Tenti, M / Terranova, F / Tioukov, V / Tsanaktsidis, I / Tufanli, S / Ustyuzhanin, A / Vasina, S / Vidal García, M / Vilain, P / Voevodina, E / Votano, L / Vuilleumier, J L / Wilquet, G / Yoon, C S

    Scientific data

    2021  Volume 8, Issue 1, Page(s) 218

    Abstract: The OPERA experiment was designed to discover the ... ...

    Abstract The OPERA experiment was designed to discover the v
    Language English
    Publishing date 2021-08-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2775191-0
    ISSN 2052-4463 ; 2052-4463
    ISSN (online) 2052-4463
    ISSN 2052-4463
    DOI 10.1038/s41597-021-00991-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Final Results of the OPERA Experiment on ν_{τ} Appearance in the CNGS Neutrino Beam.

    Agafonova, N / Alexandrov, A / Anokhina, A / Aoki, S / Ariga, A / Ariga, T / Bertolin, A / Bozza, C / Brugnera, R / Buonaura, A / Buontempo, S / Chernyavskiy, M / Chukanov, A / Consiglio, L / D'Ambrosio, N / De Lellis, G / De Serio, M / Del Amo Sanchez, P / Di Crescenzo, A /
    Di Ferdinando, D / Di Marco, N / Dmitrievsky, S / Dracos, M / Duchesneau, D / Dusini, S / Dzhatdoev, T / Ebert, J / Ereditato, A / Favier, J / Fini, R A / Fornari, F / Fukuda, T / Galati, G / Garfagnini, A / Gentile, V / Goldberg, J / Gorbunov, S / Gornushkin, Y / Grella, G / Guler, A M / Gustavino, C / Hagner, C / Hara, T / Hayakawa, T / Hollnagel, A / Ishiguro, K / Iuliano, A / Jakovcic, K / Jollet, C / Kamiscioglu, C / Kamiscioglu, M / Kim, S H / Kitagawa, N / Klicek, B / Kodama, K / Komatsu, M / Kose, U / Kreslo, I / Laudisio, F / Lauria, A / Ljubicic, A / Longhin, A / Loverre, P / Malenica, M / Malgin, A / Mandrioli, G / Matsuo, T / Matveev, V / Mauri, N / Medinaceli, E / Meregaglia, A / Mikado, S / Miyanishi, M / Mizutani, F / Monacelli, P / Montesi, M C / Morishima, K / Muciaccia, M T / Naganawa, N / Naka, T / Nakamura, M / Nakano, T / Niwa, K / Ogawa, S / Okateva, N / Olchevsky, A / Ozaki, K / Paoloni, A / Paparella, L / Park, B D / Pasqualini, L / Pastore, A / Patrizii, L / Pessard, H / Pistillo, C / Podgrudkov, D / Polukhina, N / Pozzato, M / Pupilli, F / Roda, M / Roganova, T / Rokujo, H / Rosa, G / Ryazhskaya, O / Sadovsky, A / Sato, O / Schembri, A / Shakiryanova, I / Shchedrina, T / Shibayama, E / Shibuya, H / Shiraishi, T / Simone, S / Sirignano, C / Sirri, G / Sotnikov, A / Spinetti, M / Stanco, L / Starkov, N / Stellacci, S M / Stipcevic, M / Strolin, P / Takahashi, S / Tenti, M / Terranova, F / Tioukov, V / Tufanli, S / Ustyuzhanin, A / Vasina, S / Vilain, P / Voevodina, E / Votano, L / Vuilleumier, J L / Wilquet, G / Wonsak, B / Yoon, C S

    Physical review letters

    2018  Volume 120, Issue 21, Page(s) 211801

    Abstract: The OPERA experiment was designed to study ν_{μ}→ν_{τ} oscillations in the appearance mode in the CERN to Gran Sasso Neutrino beam (CNGS). In this Letter, we report the final analysis of the full data sample collected between 2008 and 2012, corresponding ...

    Abstract The OPERA experiment was designed to study ν_{μ}→ν_{τ} oscillations in the appearance mode in the CERN to Gran Sasso Neutrino beam (CNGS). In this Letter, we report the final analysis of the full data sample collected between 2008 and 2012, corresponding to 17.97×10^{19} protons on target. Selection criteria looser than in previous analyses have produced ten ν_{τ} candidate events, thus reducing the statistical uncertainty in the measurement of the oscillation parameters and of ν_{τ} properties. A multivariate approach for event identification has been applied to the candidate events and the discovery of ν_{τ} appearance is confirmed with an improved significance level of 6.1σ. |Δm_{32}^{2}| has been measured, in appearance mode, with an accuracy of 20%. The measurement of the ν_{τ} charged-current cross section, for the first time with a negligible contamination from ν[over ¯]_{τ}, and the first direct evidence for the ν_{τ} lepton number are also reported.
    Language English
    Publishing date 2018-06-07
    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.120.211801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment.

    Agafonova, N / Aleksandrov, A / Anokhina, A / Aoki, S / Ariga, A / Ariga, T / Bender, D / Bertolin, A / Bodnarchuk, I / Bozza, C / Brugnera, R / Buonaura, A / Buontempo, S / Büttner, B / Chernyavsky, M / Chukanov, A / Consiglio, L / D'Ambrosio, N / De Lellis, G /
    De Serio, M / Del Amo Sanchez, P / Di Crescenzo, A / Di Ferdinando, D / Di Marco, N / Dmitrievski, S / Dracos, M / Duchesneau, D / Dusini, S / Dzhatdoev, T / Ebert, J / Ereditato, A / Fini, R A / Fornari, F / Fukuda, T / Galati, G / Garfagnini, A / Goldberg, J / Gornushkin, Y / Grella, G / Guler, A M / Gustavino, C / Hagner, C / Hara, T / Hayakawa, H / Hollnagel, A / Hosseini, B / Ishiguro, K / Jakovcic, K / Jollet, C / Kamiscioglu, C / Kamiscioglu, M / Kim, J H / Kim, S H / Kitagawa, N / Klicek, B / Kodama, K / Komatsu, M / Kose, U / Kreslo, I / Laudisio, F / Lauria, A / Ljubicic, A / Longhin, A / Loverre, P F / Malgin, A / Malenica, M / Mandrioli, G / Matsuo, T / Matsushita, T / Matveev, V / Mauri, N / Medinaceli, E / Meregaglia, A / Mikado, S / Miyanishi, M / Mizutani, F / Monacelli, P / Montesi, M C / Morishima, K / Muciaccia, M T / Naganawa, N / Naka, T / Nakamura, M / Nakano, T / Nakatsuka, Y / Niwa, K / Ogawa, S / Olchevsky, A / Omura, T / Ozaki, K / Paoloni, A / Paparella, L / Park, B D / Park, I G / Pasqualini, L / Pastore, A / Patrizii, L / Pessard, H / Pistillo, C / Podgrudkov, D / Polukhina, N / Pozzato, M / Pupilli, F / Roda, M / Roganova, T / Rokujo, H / Rosa, G / Ryazhskaya, O / Sato, O / Schembri, A / Schmidt-Parzefall, W / Shakirianova, I / Shchedrina, T / Sheshukov, A / Shibuya, H / Shiraishi, T / Shoziyoev, G / Simone, S / Sioli, M / Sirignano, C / Sirri, G / Sotnikov, A / Spinetti, M / Stanco, L / Starkov, N / Stellacci, S M / Stipcevic, M / Strolin, P / Takahashi, S / Tenti, M / Terranova, F / Tioukov, V / Tufanli, S / Vilain, P / Vladymyrov, M / Votano, L / Vuilleumier, J L / Wilquet, G / Wonsak, B / Yoon, C S / Zemskova, S

    Physical review letters

    2015  Volume 115, Issue 12, Page(s) 121802

    Abstract: The OPERA experiment was designed to search for ν_{μ}→ν_{τ} oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ν_{τ} interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso ... ...

    Abstract The OPERA experiment was designed to search for ν_{μ}→ν_{τ} oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ν_{τ} interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the ν_{μ}→ν_{τ} appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ν_{τ} candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of ν_{μ}→ν_{τ} oscillations in appearance mode with a significance larger than 5σ.
    Language English
    Publishing date 2015-09-18
    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.115.121802
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Measurement of CP Violation in B^{0}→ψ(→ℓ^{+}ℓ^{-})K_{S}^{0}(→π^{+}π^{-}) Decays.

    Aaij, R / Abdelmotteleb, A S W / Abellan Beteta, C / Abudinén, F / Ackernley, T / Adeva, B / Adinolfi, M / Adlarson, P / Afsharnia, H / Agapopoulou, C / Aidala, C A / Ajaltouni, Z / Akar, S / Akiba, K / Albicocco, P / Albrecht, J / Alessio, F / Alexander, M / Alfonso Albero, A /
    Aliouche, Z / Alvarez Cartelle, P / Amalric, R / Amato, S / Amey, J L / Amhis, Y / An, L / Anderlini, L / Andersson, M / Andreianov, A / Andreola, P / Andreotti, M / Andreou, D / Ao, D / Archilli, F / Artamonov, A / Artuso, M / Aslanides, E / Atzeni, M / Audurier, B / Bacher, D / Bachiller Perea, I / Bachmann, S / Bachmayer, M / Back, J J / Bailly-Reyre, A / Baladron Rodriguez, P / Balagura, V / Baldini, W / Baptista de Souza Leite, J / Barbetti, M / Barbosa, I R / Barlow, R J / Barsuk, S / Barter, W / Bartolini, M / Baryshnikov, F / Basels, J M / Bassi, G / Batsukh, B / Battig, A / Bay, A / Beck, A / Becker, M / Bedeschi, F / Bediaga, I B / Beiter, A / Belin, S / Bellee, V / Belous, K / Belov, I / Belyaev, I / Benane, G / Bencivenni, G / Ben-Haim, E / Berezhnoy, A / Bernet, R / Bernet Andres, S / Berninghoff, D / Bernstein, H C / Bertella, C / Bertolin, A / Betancourt, C / Betti, F / Bex, J / Bezshyiko, Ia / Bhom, J / Bian, L / Bieker, M S / Biesuz, N V / Billoir, P / Biolchini, A 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    Physical review letters

    2024  Volume 132, Issue 2, Page(s) 21801

    Abstract: A measurement of time-dependent CP violation in the decays of B^{0} and B[over ¯]^{0} mesons to the final states J/ψ(→μ^{+}μ^{-})K_{S}^{0}, ψ(2S)(→μ^{+}μ^{-})K_{S}^{0} and J/ψ(→e^{+}e^{-})K_{S}^{0} with K_{S}^{0}→π^{+}π^{-} is presented. The data ... ...

    Abstract A measurement of time-dependent CP violation in the decays of B^{0} and B[over ¯]^{0} mesons to the final states J/ψ(→μ^{+}μ^{-})K_{S}^{0}, ψ(2S)(→μ^{+}μ^{-})K_{S}^{0} and J/ψ(→e^{+}e^{-})K_{S}^{0} with K_{S}^{0}→π^{+}π^{-} is presented. The data correspond to an integrated luminosity of 6  fb^{-1} collected at a center-of-mass energy of sqrt[s]=13  TeV with the LHCb detector. The CP-violation parameters are measured to be S_{ψK_{S}^{0}}=0.717±0.013(stat)±0.008(syst) and C_{ψK_{S}^{0}}=0.008±0.012(stat)±0.003(syst). This measurement of S_{ψK_{S}^{0}} represents the most precise single measurement of the CKM angle β to date and is more precise than the current world average. In addition, measurements of the CP-violation parameters of the individual channels are reported and a combination with the LHCb Run 1 measurements is performed.
    Language English
    Publishing date 2024-01-26
    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.132.021801
    Database MEDical Literature Analysis and Retrieval System OnLINE

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