arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1605.04545hep-ex
收藏

在B0-B0bar混合和B0-> c cbar K0衰变中PDKEEPAAA对称性的检验

Tests of CPT symmetry in B0-B0bar mixing and in B0 -> c cbar K0 decays

BABAR Collaboration

摘要:

利用由BABAR实验测量的在衰减到CP本征态fk = ccbar KS,KL之前或之后的八个时间依赖性,我们确定了B0-B0 bar混合中的三个CPT敏感参数Re(z)和Im(z),|Abar/A|在B0-> cbar中,K0衰变。得到Im(z)= 0.010 +-0.030 +-0.013,Re(z)=-0.065 +-0.028 +-0.014,|Abar/A| = 0.999 +-0.023 +-0.017,与CPT对称性一致。

英文摘要:

Using the eight time dependences for the decays Upsilon(4S)-> B0 B0bar -> fj fk with the dacay into a flavor-specific state fj = ell+- X before or after the decay into a CP eigenstate fk = c cbar KS,KL, as measured by the BABAR experiment, we determine the three CPT-sensitive parameters Re(z) and Im(z) in B0-B0bar mixing and |Abar/A| in B0 -> c cbar K0 decays. We find Im(z) = 0.010 +- 0.030 +- 0.013, Re(z) = -0.065 +- 0.028 +- 0.014, and |Abar/A| = 0.999 +- 0.023 +- 0.017, in agreement with CPT symmetry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑