The T2K Experiment

• Published in: arXiv.org 2011-06
• Main Authors: T2K Collaboration, Araoka, O, J P A M de André, Bay, F, Berns, H, Birney, P, Bishop, D, Blaszczyk, F d M, Blocki, J, Boyd, S B, Boyer, M, Brook-Roberge, D G, Bryant, M, Budd, H, Carroll, J, Carver, A, Chollet, S, Colas, P, Cooke, P, De Rosa, G, F Di Lodovico, Dytman, S, Escallier, J E, bush, D, Frank, E, Fransham, K, Gaweda, J, Gilje, K, Gomez-Cadenas, J J, Grant, A, Grant, N, Hara, T, Hartz, M, Haruyama, T, Hasanen, R, Hastings, N C, Hayashi, K, Horikawa, S, Ilic, J, Kajita, T, Karlen, D, Kasey, V, Kielczewska, D, Kouzuma, Y, Kropp, W, Kurimoto, Y, Lawson, T B, Longhin, A, Lopez, G D, Macaire, M, Marchionni, A, Marteau, J, McFarland, K S, Metcalf, W, Mijakowski, P, Mituka, G, Miura, M, Monfregola, L, Morgan, B, Murphy, S, Nakamoto, T, Okumura, K, Ohlmann, C, Payne, D, Pearce, G F, Pearson, C, Plonski, P, Posiadala, M, J -M Poutissou, Qian, W, Ravonel, M, Richards, D, J -L Ritou, Rodrigues, P A, Roth, S, Seiya, Y, Shiozawa, M, Short, S, Smith, D, Smy, M, Spitz, J, Stawnyczy, L, Suzuki, S Y, Szeptycka, M, Takenaga, Y, Tashiro, K, Terhorst, D, Van Schalkwyk, J F, J -C Vanel, Veledar, O, Wachala, T, Waldron, A V, Wanderer, P J, Ward, M A, Wark, D, West, N, Wikström, G, Yamamoto, K, Yamanoi, Y, Yokoyama, M
• Format: Article
• Language: English
• Subjects: Experiments; Leptons; Neutrinos; Particle physics; Proton accelerators; Proton beams; Subsystems
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1106.1238

The T2K experiment is a long-baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle {\theta}_{13} by observing {\nu}_e appearance in a {\nu}_{\mu} beam. It also aims to make a precision measurement of the known oscillation parameters, {\Delta}m^{2}_{23} and sin^{2} 2{\theta}_{23}, via {\nu}_{\mu} disappearance studies. Other goals of the experiment include various neutrino cross section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem.