Accelerator Neutrinos

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The ATLAS EventIndex

Computing and Software for Big Science Springer 7:1 (2023) 2

Authors:

Dario Barberis, Igor Alexandrov, Evgeny Alexandrov, Zbigniew Baranowski, Luca Canali, Elizaveta Cherepanova, Gancho Dimitrov, Andrea Favareto, Álvaro Fernández Casaní, Elizabeth J Gallas, Carlos García Montoro, Santiago González de la Hoz, Julius Hřivnáč, Alexander Iakovlev, Andrei Kazymov, Mikhail Mineev, Fedor Prokoshin, Grigori Rybkin, José Salt, Javier Sánchez, Roman Sorokoletov, Rainer Többicke, Petya Vasileva, Miguel Villaplana Perez, Ruijun Yuan

Abstract:

The ATLAS EventIndex system comprises the catalogue of all events collected, processed or generated by the ATLAS experiment at the CERN LHC accelerator, and all associated software tools to collect, store and query this information. ATLAS records several billion particle interactions every year of operation, processes them for analysis and generates even larger simulated data samples; a global catalogue is needed to keep track of the location of each event record and be able to search and retrieve specific events for in-depth investigations. Each EventIndex record includes summary information on the event itself and the pointers to the files containing the full event. Most components of the EventIndex system are implemented using BigData free and open-source software. This paper describes the architectural choices and their evolution in time, as well as the past, current and foreseen future implementations of all EventIndex components.
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Measurements of neutrino oscillation parameters from the T2K experiment using $3.6\times10^{21}$ protons on target

(2023)

Authors:

The T2K Collaboration, K Abe, N Akhlaq, R Akutsu, A Ali, S Alonso Monsalve, C Alt, C Andreopoulos, M Antonova, S Aoki, T Arihara, Y Asada, Y Ashida, ET Atkin, M Barbi, GJ Barker, G Barr, D Barrow, M Batkiewicz-Kwasniak, F Bench, V Berardi, L Berns, S Bhadra, A Blanchet, A Blondel, S Bolognesi, T Bonus, S Bordoni, SB Boyd, A Bravar, C Bronner, S Bron, A Bubak, M Buizza Avanzini, JA Caballero, NF Calabria, S Cao, D Carabadjac, AJ Carter, SL Cartwright, MG Catanesi, A Cervera, J Chakrani, D Cherdack, PS Chong, G Christodoulou, A Chvirova, M Cicerchia, J Coleman, G Collazuol, L Cook, A Cudd, C Dalmazzone, T Daret, Yu I Davydov, A De Roeck, G De Rosa, T Dealtry, CC Delogu, C Densham, A Dergacheva, F Di Lodovico, S Dolan, D Douqa, TA Doyle, O Drapier, J Dumarchez, P Dunne, K Dygnarowicz, A Eguchi, S Emery-Schrenk, G Erofeev, A Ershova, G Eurin, D Fedorova, S Fedotov, M Feltre, AJ Finch, GA Fiorentini Aguirre, G Fiorillo, MD Fitton, JM Franco Patiño, M Friend, Y Fujii, Y Fukuda, K Fusshoeller, L Giannessi, C Giganti, V Glagolev, M Gonin, J González Rosa, EAG Goodman, A Gorin, M Grassi, M Guigue, DR Hadley, JT Haigh, P Hamacher-Baumann, DA Harris, M Hartz, T Hasegawa, S Hassani, NC Hastings, Y Hayato, D Henaff, A Hiramoto, M Hogan, J Holeczek, A Holin, T Holvey, NT Hong Van, T Honjo, F Iacob, AK Ichikawa, M Ikeda, T Ishida, M Ishitsuka, HT Israel, K Iwamoto, A Izmaylov, N Izumi, M Jakkapu, B Jamieson, SJ Jenkins, C Jesús-Valls, JJ Jiang, P Jonsson, S Joshi, CK Jung, PB Jurj, M Kabirnezhad, AC Kaboth, T Kajita, H Kakuno, J Kameda, SP Kasetti, Y Kataoka, Y Katayama, T Katori, M Kawaue, E Kearns, M Khabibullin, A Khotjantsev, T Kikawa, H Kikutani, S King, V Kiseeva, J Kisiel, T Kobata, H Kobayashi, T Kobayashi, L Koch, S Kodama, A Konaka, LL Kormos, Y Koshio, A Kostin, T Koto, K Kowalik, Y Kudenko, Y Kudo, S Kuribayashi, R Kurjata, T Kutter, M Kuze, M La Commara, L Labarga, K Lachner, J Lagoda, SM Lakshmi, M Lamers James, M Lamoureux, A Langella, J-F Laporte, D Last, N Latham, M Laveder, L Lavitola, M Lawe, Y Lee, C Lin, S-K Lin, RP Litchfield, SL Liu, W Li, A Longhin, KR Long, A Lopez Moreno, L Ludovici, X Lu, T Lux, LN Machado, L Magaletti, K Mahn, M Malek, M Mandal, S Manly, AD Marino, L Marti-Magro, DGR Martin, M Martini, JF Martin, T Maruyama, T Matsubara, V Matveev, C Mauger, K Mavrokoridis, E Mazzucato, N McCauley, J McElwee, KS McFarland, C McGrew, J McKean, A Mefodiev, GD Megias, P Mehta, L Mellet, C Metelko, M Mezzetto, E Miller, A Minamino, O Mineev, S Mine, M Miura, L Molina Bueno, S Moriyama, S Moriyama, P Morrison, Th A Mueller, D Munford, L Munteanu, K Nagai, Y Nagai, T Nakadaira, K Nakagiri, M Nakahata, Y Nakajima, A Nakamura, H Nakamura, K Nakamura, KD Nakamura, Y Nakano, S Nakayama, T Nakaya, K Nakayoshi, CER Naseby, TV Ngoc, VQ Nguyen, K Niewczas, S Nishimori, Y Nishimura, K Nishizaki, T Nosek, F Nova, P Novella, JC Nugent, HM O'Keeffe, L O'Sullivan, T Odagawa, T Ogawa, R Okada, W Okinaga, K Okumura, T Okusawa, N Ospina, RA Owen, Y Oyama, V Palladino, V Paolone, M Pari, J Parlone, S Parsa, J Pasternak, M Pavin, D Payne, GC Penn, D Pershey, L Pickering, C Pidcott, G Pintaudi, C Pistillo, B Popov, K Porwit, M Posiadala-Zezula, YS Prabhu, F Pupilli, B Quilain, T Radermacher, E Radicioni, B Radics, MA Ramírez, PN Ratoff, M Reh, C Riccio, E Rondio, S Roth, N Roy, A Rubbia, AC Ruggeri, CA Ruggles, A Rychter, K Sakashita, F Sánchez, G Santucci, CM Schloesser, K Scholberg, M Scott, Y Seiya, T Sekiguchi, H Sekiya, D Sgalaberna, A Shaikhiev, F Shaker, A Shaykina, M Shiozawa, W Shorrock, A Shvartsman, N Skrobova, K Skwarczynski, D Smyczek, M Smy, JT Sobczyk, H Sobel, FJP Soler, Y Sonoda, AJ Speers, R Spina, IA Suslov, S Suvorov, A Suzuki, SY Suzuki, Y Suzuki, AA Sztuc, M Tada, S Tairafune, S Takayasu, A Takeda, Y Takeuchi, K Takifuji, HK Tanaka, Y Tanihara, M Tani, A Teklu, VV Tereshchenko, N Teshima, N Thamm, LF Thompson, W Toki, C Touramanis, T Towstego, KM Tsui, T Tsukamoto, M Tzanov, Y Uchida, M Vagins, D Vargas, M Varghese, G Vasseur, C Vilela, E Villa, WGS Vinning, U Virginet, T Vladisavljevic, T Wachala, JG Walsh, Y Wang, L Wan, D Wark, MO Wascko, A Weber, R Wendell, MJ Wilking, C Wilkinson, JR Wilson, K Wood, C Wret, J Xia, Y-H Xu, K Yamamoto, T Yamamoto, C Yanagisawa, G Yang, T Yano, K Yasutome, N Yershov, U Yevarouskaya, M Yokoyama, Y Yoshimoto, N Yoshimura, M Yu, R Zaki, A Zalewska, J Zalipska, K Zaremba, G Zarnecki, X Zhao, T Zhu, M Ziembicki, ED Zimmerman, M Zito, S Zsoldos
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Modelling heavy neutral leptons in accelerator beamlines

Physical Review D American Physical Society 107 (2023) 055003

Authors:

Komninos John Plows, Xianguo Lu

Abstract:

Heavy Neutral Leptons (HNLs) with masses 0.1-1 GeV/c^2 are promising candidates for the simultaneous explanation of the smallness of the observed neutrino masses as well as the matter-antimatter asymmetry in the observable Universe. These particles can be produced in the decay of hadrons typically produced in a neutrino beamline used for oscillation experiments, and have sufficient lifetime to propagate to a near detector, where they decay to observable particles. For the approximation of a single new mass eigenstate mixing with the Standard Model via the lepton mixing matrix, a simulation framework based on the GENIE event generator has been developed. This module is designed to facilitate searches for HNL through a unified, minimal interface employing a detailed treatment of the kinematics and dynamics of massive unstable neutrinos, with a transparently organised suite of physics effects tracking the HNL from its production to its decay. These mechanisms are expounded on in the current work, underlining the rich landscape for novel, non-trivial physics that has already been identified in previous literature. This framework is an ongoing effort to provide a consistent and comprehensive description of heavy neutrinos from particle decays. We highlight use cases and future applications of interest to the accelerator neutrino community.
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Measurement of the axial vector form factor from antineutrino–proton scattering

Nature Springer Nature 614:7946 (2023) 48-53

Authors:

T Cai, ML Moore, A Olivier, S Akhter, Z Ahmad Dar, V Ansari, MV Ascencio, A Bashyal, A Bercellie, M Betancourt, A Bodek, JL Bonilla, A Bravar, H Budd, G Caceres, MF Carneiro, GA Díaz, H da Motta, J Felix, L Fields, A Filkins, R Fine, AM Gago, H Gallagher, SM Gilligan, R Gran, E Granados, DA Harris, S Henry, D Jena, S Jena, J Kleykamp, A Klustová, M Kordosky, D Last, T Le, A Lozano, X-G Lu, E Maher, S Manly, WA Mann, C Mauger, KS McFarland, B Messerly, J Miller, O Moreno, JG Morfín, D Naples, JK Nelson, C Nguyen, V Paolone, GN Perdue, K-J Plows, MA Ramírez, RD Ransome, H Ray, D Ruterbories, H Schellman, CJ Solano Salinas, H Su, M Sultana, VS Syrotenko, E Valencia, NH Vaughan, AV Waldron, MO Wascko, C Wret, B Yaeggy, L Zazueta
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Observation of electroweak production of two jets and a Z-boson pair

Nature Physics Springer Nature 19:2 (2023) 237-253
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