The T2K ND280 off-axis pi–zero detector

• DOI: 10.1016/j.nima.2012.05.028
• Publication Date: 2012-05-30T10:17:31Z
• Authors: S. Assylbekov; G. Barr; B.E. Berger; H. Berns; D. Beznosko; A. Bodek; R. Bradford; N. Buchanan; H. Budd; Y. Caffari; K. Connolly; I. Danko; R. Das; S. Davis; M. Day; S. Dytman; M. Dziomba; R. Flight; D. Forbush; K. Gilje; D. Hansen; J. Hignight; J. Imber; R.A. Johnson; C.K. Jung; V. Kravtsov; P.T. Le; G.D. 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; I.J. Taylor; M. Thorpe; W. Toki; C. Vanek; D. Warner; A. Weber; R.J. Wilkes; R.J. Wilson; C. Yanagisawa; T. Yuan
• Keywords: J-PARC; Zero (linguistics); SIGNAL (programming language)

17 pages, submitted to NIM A<br/>The Pi-Zero detector (P��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��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��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.<br/>