학술논문
Status of the BNL muon (g-2) experiment
Document Type
Periodical
Author
Prigl, R.; Brown, H.N.; Bunce, G.; Carey, R.M.; Cushman, P.; Danby, G.T.; Debevec, P.T.; Deng, H.; Deninger, W.; Dhawan, S.K.; Druzhinin, V.P.; Duong, L.; Earle, W.; Efstathiadis, E.; Farley, F.J.M.; Fedotovich, G.V.; Giron, S.; Gray, F.; Grosse Perdekamp, M.; Grossmann, A.; Haeberlen, U.; Hare, M.; Hazen, E.S.; Hertzog, D.W.; Hughes, V.W.; Iwasaki, M.; Jungmann, K.; Kawall, D.; Kawamura, M.; Khazin, B.I.; Kindem, J.; Krienen, F.; Kronkvist, I.; Larsen, R.; Lee, Y.Y.; Liu, W.; Logashenko, I.; McNabb, R.; Meng, W.; Mi, J.-L.; Miller, D.; Miller, J.P.; Morse, W.M.; Neumayer, P.; Onderwater, C.J.G.; Orlov, Y.; Pai, C.; Polly, C.; Pretz, J.; zu Putlitz, G.; Redin, S.I.; Rind, O.; Roberts, B.L.; Ryskulov, N.; Sanders, R.; Sedykh, S.; Semertzidis, Y.K.; Serednyakov, S.; Shatunov, Yu.M.; Solodov, E.; Sossong, M.; Steinmetz, A.; Sulak, L.R.; Tanaka, M.; Timmermans, C.; Trofimov, A.; Urner, D.; Warburton, D.; Winn, D.; Yamamoto, A.; Zimmerman, D.
Source
IEEE Transactions on Instrumentation and Measurement IEEE Trans. Instrum. Meas. Instrumentation and Measurement, IEEE Transactions on. 48(2):182-185 Apr, 1999
Subject
Language
ISSN
0018-9456
1557-9662
1557-9662
Abstract
The muon (g-2) experiment at Brookhaven completed a first run in June and July 1997. The main components of the experiment, which include the superconducting inflector, the superferric storage ring, the electrostatic quadrupoles and the lead-scintillating fiber electron calorimeters, have been commissioned satisfactorily. Our first measurement of the ratio R of the spin precession frequency of the positive muon relative to that of a free proton, R=(3.707219/spl plusmn/0.000048)/spl times/10/sup -3/, is in good agreement with the previous CERN measurements for /spl mu//sup +/ and /spl mu//sup -/, and has approximately the same uncertainty as each of these measurements. In spring 1998 a muon kicker was installed and successfully tested in the storage ring magnet and a significant improvement in the knowledge of the muon g-factor is expected from upcoming runs in August 1998 and January 1999.