A high precision measurement of the υ-meson mass

A.S. Artamonov,S. E. Baru,A. E. Blinov,A. Bondar,A. D. Bukin,V. R. Groshev,N.F. Denisov,Yu. I. Eidelman,N.I. Inozemtsev,V.A. Kiselev,S. G. Klimenko,G.Ya. Kezeraschvili,E. A. Kuper,L.M. Kurdadze,S.I. Mishnev,S.A. Nikitin,A. P. Onuchin,V. S. Panin,V.V. Petrov,I. Ya. Protopopov,E.L. Saldin,A. G. Shamov,Yu. M. Shatunov,V. Sidorov,A.N. Skrinsky,V.A. Tayursky,V. I. Telnov,A.B. Temnykh,Yu. A. Tikhonov,G.M. Tumaikin,A. I. Vorobiov,M.V. Yurkov,A. Zholents

A high precision measurement of the υ-meson mass

1982

Abstract A high precision measurement of the υ-meson mass has been performed at the storage ring VEPP-4 using the MD-1 detector. The resonance depolarization method has been used for the absolute calibration of the beam energy that allowed to improve the accuracy of υ-mass measurement by a factor of ten. The following mass value has been obtained: M = 9459.7 ± 0.6 MeV.

Keywords:

Storage ring
Calibration
Detector
Meson
Depolarization
Beam (structure)
Resonance
Nuclear magnetic resonance
Physics
Atomic physics
beam energy
absolute calibration

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