含 Λ 任意末态的包含衰变 $\Lambda_{c}^{+} \to \Lambda + X$ 绝对分支比测量
高能物理 - 实验
2018-08-15 v1
摘要
基于 BESIII 探测器在质心能量 GeV 下获取的对应积分亮度为 567 的 碰撞数据样本，我们利用双标记法测得包含衰变 的绝对分支比为 ，其中 指任意可能的最终态粒子。此外，我们首次在该包含衰变的电荷不对称性中寻找直接 CP 破坏，得到 ，这是一个受统计限制且无 CP 破坏证据的结果。
引用
@article{arxiv.1803.05706,
title = {Measurement of absolute branching fraction of the inclusive decay $\Lambda_{c}^{+} \to \Lambda + X$},
author = {BESIII Collaboration and M. Ablikim and M. N. Achasov and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and F. F. An and Q. An and J. Z. Bai and Y. Bai and O. Bakina and R. Baldini Ferroli and Y. Ban and D. W. Bennett and J. V. Bennett and N. Berger and M. Bertani and D. Bettoni and J. M. Bian and F. Bianchi and E. Boger and I. Boyko and R. A. Briere and H. Cai and X. Cai and O. Cakir and A. Calcaterra and G. F. Cao and S. A. Cetin and J. Chai and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and J. C. Chen and M. L. Chen and P. L. Chen and S. J. Chen and X. R. Chen and Y. B. Chen and X. K. Chu and G. Cibinetto and H. L. Dai and J. P. Dai and A. Dbeyssi and D. Dedovich and Z. Y. Deng and A. Denig and I. Denysenko and M. Destefanis and F. De Mori and Y. Ding and C. Dong and J. Dong and L. Y. Dong and M. Y. Dong and Z. L. Dou and S. X. Du and P. F. Duan and J. Fang and S. S. Fang and X. Fang and Y. Fang and R. Farinelli and L. Fava and S. Fegan and F. 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Zhao and S. J. Zhao and T. C. Zhao and Y. B. Zhao and Z. G. Zhao and A. Zhemchugov and B. Zheng and J. P. Zheng and W. J. Zheng and Y. H. Zheng and B. Zhong and L. Zhou and X. Zhou and X. K. Zhou and X. R. Zhou and X. Y. Zhou and Y. X. Zhou and J. Zhu and J. Zhu and K. Zhu and K. J. Zhu and S. Zhu and S. H. Zhu and X. L. Zhu and Y. C. Zhu and Y. S. Zhu and Z. A. Zhu and J. Zhuang and B. S. Zou and J. H. Zou},
journal= {arXiv preprint arXiv:1803.05706},
year = {2018}
}
备注
8 pages, 2 figures