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hep-ex2011
Measurements of the mass and width of the eta_c using psi' -> gamma eta_c
BESIII Collaboration, M. Ablikim, M. N. Achasov +332
The mass and width of the lowest lying S-wave spin singlet charmonium state, the eta_c, are measured using a data sample of 1.06x10^8 psi' decays collected with the BESIII detector…
physics.acc-ph2011★ 69 cited
The beam energy measurement system for the Beijing electron-positron collider
E. V. Abakumova, M. N. Achasov, V. E. Blinov +25
The beam energy measurement system (BEMS) for the upgraded Beijing electron-positron collider BEPC-II is described. The system is based on measuring the energies of Compton back-sc…