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1. chinaXiv:201703.00619 [pdf]

Data taking strategy for phase study through ψ′ → K+K? decay

Wang Boqun; Mo Xiaohu; Yuan Changzheng; Ban Yong
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties

The study of the relative phase between strong and electromagnetic amplitudes is of great importance for understanding the dynamics of charmonium decays. The information of the phase can be obtained model-independently by fitting the scan data of some special decay channels, one of which is ψ′ → K+K?. To find out the optimal data taking strategy for a scan experiment in the phase study of ψ′ → K+K? decay, the minimization process is analyzed in detail from a theoretical point of view.

submitted time 2017-03-26 Hits11749Downloads1401 Comment 0

2. chinaXiv:201703.00612 [pdf]

Measurement of radiation dose at the north interaction point of BEPCII

Mo Xiaohu; Zhang Jianyong; Zhang Tianbao; Zhang Qinjiang; Achasov Mikhail; Fu Chengdong; Muchnoi Nikolay; Qin Qing; Qu Huamin; Wang Yifang; Wu Jingming; Xu Jinqiang; Yu Boxiang
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties

The technique details for measuring radiation dose are expounded. The results of radiation levels of gamma and neutron are presented and the corresponding radiation shielding is discussed based on the simplified estimation. In addition, the radiation level of photon as background for the future experiment is measured by NaI(Tl) detector.

submitted time 2017-03-26 Hits12619Downloads1013 Comment 0

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