Measurement of the center-of-mass energies at BESIII via the di-muon process
From 2011 to 2014, the BESIII experiment collected about 5 fb?1?data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing the di-muon process?e+e?→γISR/FSRμ+μ?, the center-of-mass energies of the data samples are measured with a precision of 0.8 MeV. The center-of-mass energy is found to be stable for most of time during the data taking.
From 2011 to 2014, the BESIII experiment collected about 5 fb1data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmonium states. By analyzing the di-muon processe+eISR/FSR+, the center-of-mass energies of the data samples are measured with a precision of 0.8 MeV. The center-of-mass energy is found to be stable for most of time during the data taking.
Ablikim, M. and others
物理学粒子探测技术、辐射探测技术、核仪器仪表加速器
BESIIIcenter-of-mass energiesdi-muon process
Ablikim, M. and others.Measurement of the center-of-mass energies at BESIII via the di-muon process[EB/OL].(2016-09-12)[2025-08-24].https://chinaxiv.org/abs/201609.00784.点此复制
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