$D\rightarrow K^0_{S,L}\pi^+\pi^-$ 中强相位参数的测定
高能物理 - 实验
2020-07-01 v2
摘要
我们报道了迄今最精确的 与 衰变到 之间强相位参数的测量，所用样本为在 BEPCII 对撞机上 BESIII 探测器于 3.773 GeV 质心能量收集的 2.93 fb 湮灭数据。我们的结果为利用 衰变以分箱模型无关方式确定 Cabibbo-Kobayashi-Maskawa 角 提供了关键输入。使用我们的结果， 测量的衰变模型灵敏度预计在 0.7 到 1.2 之间，约为先前测量可实现值的的三分之一。本工作的精度提升确保了未来十年内 的测量不会受强相位认知的限制。此外，我们的结果为其他味物理研究提供了关键输入，包括粲混合、其他 破坏测量，以及其他 衰变模式的强相位参数测量。
引用
@article{arxiv.2002.12791,
title = {Determination of strong-phase parameters in $D\rightarrow K^0_{S,L}\pi^+\pi^-$},
author = {M. Ablikim and M. N. Achasov and P. Adlarson and S. Ahmed and M. Albrecht and M. Alekseev and D. Ambrose and A. Amoroso and F. F. An and Q. An and Anita and Y. Bai and O. Bakina and R. Baldini Ferroli and I. Balossino and Y. Ban and K. Begzsuren and J. V. Bennett and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J Biernat and J. Bloms and I. Boyko and R. A. Briere and H. Cai and X. Cai and A. Calcaterra and G. F. Cao and N. Cao and S. A. Cetin and J. Chai and J. F. Chang and W. L. Chang and G. Chelkov and D. Y. Chen and G. Chen and H. S. Chen and J. Chen and J. C. Chen and M. L. Chen and S. J. Chen and Y. B. Chen and W. Cheng and G. Cibinetto and F. Cossio and X. F. Cui and H. L. Dai and J. P. Dai and X. C. 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 J. Z. Fan and J. Fang and S. S. Fang and Y. 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journal= {arXiv preprint arXiv:2002.12791},
year = {2020}
}
备注
7 pages, 3 figures