학술논문
The SeaQuest Spectrometer at Fermilab
Document Type
Working Paper
Author
SeaQuest Collaboration; Aidala, C. A.; Arrington, J. R.; Ayuso, C.; Bowen, B. M.; Bowen, M. L.; Bowling, K. L.; Brown, A. W.; Brown, C. N.; Byrd, R.; Carlisle, R. E.; Chang, T.; Chang, W. -C.; Chen, A.; Chen, J. -Y.; Christian, D. C.; Chu, X.; Dannowitz, B. P.; Daugherity, M.; Diefenthaler, M.; Dove, J.; Durandet, C.; Fassi, L. El; Erdos, E.; Fox, D. M.; Geesaman, D. F.; Gilman, R.; Goto, Y.; Guo, L.; Guo, R.; Hague, T.; Hicks, C. R.; Holt, R. J.; Isenhower, D.; Jiang, X.; Katich, J. M.; Kerns, B. M.; Kinney, E. R.; Kitts, N. D.; Klein, A.; Kleinjan, D.; Kras, J.; Kudo, Y.; Lin, P. -J.; Liu, D.; Liu, K.; Liu, M. X.; Lorenzon, W.; Makins, N. C. R.; Martinez, J. D.; McClellan, R. E.; McDonald, B.; McGaughey, P. L.; McNease, S. E.; Medeiros, M. M.; Miller, B.; Miller, A. J.; Miyasaka, S.; Miyachi, Y.; Mooney, I. A.; Morton, D. H.; Nadim, B.; Nagai, K.; Nakahara, K.; Nakano, K.; Nara, S.; Obata, S.; Peng, J. C.; Prasad, S.; Puckett, A. J. R.; Ramson, B. J.; Raymond, R. S.; Reimer, P. E.; Rubin, J. G.; Salinas, R.; Sanftl, F.; Sawada, S.; Sawada, T.; Scott, M. B. C.; Selensky, L. E.; Shibata, T. -A.; Shiu, S.; Su, D.; Tadepalli, A. S.; Teo, M.; Tice, B. G.; Towell, C. L.; Towell, R. S.; Uemura, S.; Wang, S. G.; Watson, S.; White, N.; Wickes, A. B.; Wood, M. R.; Wu, J.; Xi, Z.; Ye, Z.; Yin, Y.
Source
Subject
Language
Abstract
The SeaQuest spectrometer at Fermilab was designed to detect oppositely-charged pairs of muons (dimuons) produced by interactions between a 120 GeV proton beam and liquid hydrogen, liquid deuterium and solid nuclear targets. The primary physics program uses the Drell-Yan process to probe antiquark distributions in the target nucleon. The spectrometer consists of a target system, two dipole magnets and four detector stations. The upstream magnet is a closed-aperture solid iron magnet which also serves as the beam dump, while the second magnet is an open aperture magnet. Each of the detector stations consists of scintillator hodoscopes and a high-resolution tracking device. The FPGA-based trigger compares the hodoscope signals to a set of pre-programmed roads to determine if the event contains oppositely-signed, high-mass muon pairs.