Title :
Development of resonance depolarization method at VEPP-4 for high precision measurement of tau lepton mass
Author :
Blinov, V.E. ; Bogomyagkov, A.V. ; Karnaev, S.E. ; Kiselev, V.A. ; Levichev, E.B. ; Mishnev, S.I. ; Nikitin, S.A. ; Nikolaev, I.B. ; Nikolenko, D.M. ; Protopopov, I.Ya. ; Tikhonov, Yu.A. ; Toporkov, D.K. ; Tumaikin, G.M. ; Zhilich, V.N. ; Zinevich, N.I.
Author_Institution :
BINP SB, Acad. of Sci., Novosibirsk, Russia
Abstract :
We plan to measure the mass of τ lepton near the threshold of its production with an accuracy 10-4 or better in the experiment with the detector KEDR at the e+e- collider VEPP-4M using the method of resonance depolarization for calibration of particle energy. The scenario of the experiment, the developed systems of polarimeters and the depolarizer are described. Some points regarding beam polarization and energy calibration accuracy are considered
Keywords :
electron accelerators; polarimeters; storage rings; VEPP-4; beam polarization; depolarizer; energy calibration; polarimeters; resonance depolarization; tau mass; Calibration; Detectors; Electron beams; Energy measurement; Extraterrestrial measurements; Frequency; Magnetic resonance; Mass production; Polarization; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988096
