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The T2K ND280 off-axis pi–zero detector

2012; Elsevier BV; Volume: 686; Linguagem: Inglês

10.1016/j.nima.2012.05.028

1872-9576

S. Assylbekov, G. Barr, B. E. Berger, H. Berns, Dmitriy Beznosko, A. Bodek, R. Bradford, N. J. Buchanan, H. S. Budd, Yvan Caffari, K. Connolly, I. Dankó, R. Das, S. Davis, M. Day, S. Dytman, M. Dziomba, R. Flight, D. A. Forbush, K. Gilje, D. Hansen, J. Hignight, J. Imber, R. A. Johnson, C. K. Jung, V. I. Kravtsov, P. T. Le, G. Lopez, C.J. Malafis, S. Manly, A. D. Marino, K. S. McFarland, C. McGrew, C. Metelko, G. Nagashima, D. Naples, T.C. Nicholls, B. Nielsen, V. Paolone, P. Paul, G.F. Pearce, W. Qian, K. Ramos, E. Reinherz-Aronis, P. A. Rodrigues, D. Ruterbories, J. Schmidt, J. Schwehr, M. Siyad, J. Steffens, A.S. Tadepalli, Ian Taylor, M. Thorpe, W. H. Toki, C. Vanek, D. Warner, A. Weber, R. J. Wilkes, R. J. Wilson, C. Yanagisawa, T. Yuan,

Particle physics theoretical and experimental studies

The Pi-Zero detector (P{\O}D) is one of the subdetectors that makes up the off-axis near detector for the Tokai-to-Kamioka (T2K) long baseline neutrino experiment. The primary goal for the P{\O}D is to measure the relevant cross sections for neutrino interactions that generate pi-zero's, especially the cross section for neutral current pi-zero interactions, which are one of the dominant sources of background to the electron neutrino appearance signal in T2K. The P{\O}D is composed of layers of plastic scintillator alternating with water bags and brass sheets or lead sheets and is one of the first detectors to use Multi-Pixel Photon Counters (MPPCs) on a large scale.