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arXiv 1203.0171hep-ph
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纠缠B0-antiB0系统的时间延迟破坏

Time Reversal Violation from the entangled B0-antiB0 system

J. Bernabeu, F. Martinez-Vidal, P. Villanueva-Perez

摘要:

我们讨论的概念和方法来实现一个实验,直接探测时间Reynolds(T)的非不变性,没有任何实验连接到CP破坏,通过交换的“在”和“出”状态。这个想法依赖于B工厂提供的B 0-antiB 0纠缠和衰变时间信息。仍然活着的中性介子的状态通过其正交伙伴的第一次衰变的味道或CP标签克服了不稳定系统的不可逆性问题,这阻止了用非相干粒子状态直接测试T。两个衰变之间时间演化中的T破坏在实验上意味着时间有序的(l^+ X,J/psi K_S)和(J/psi K_L,l^- X)衰变的强度之间的差异,以及其他三个独立的不对称性。所提出的策略已被应用到模拟数据样本的类似大小和功能,目前可用的,从我们估计的意义,预期的发现,达到许多标准差。

英文摘要:

We discuss the concepts and methodology to implement an experiment probing directly Time Reversal (T) non-invariance, without any experimental connection to CP violation, by the exchange of "in" and "out" states. The idea relies on the B0-antiB0 entanglement and decay time information available at B factories. The flavor or CP tag of the state of the still living neutral meson by the first decay of its orthogonal partner overcomes the problem of irreversibility for unstable systems, which prevents direct tests of T with incoherent particle states. T violation in the time evolution between the two decays means experimentally a difference between the intensities for the time-ordered (l^+ X, J/psi K_S) and (J/psi K_L, l^- X) decays, and three other independent asymmetries. The proposed strategy has been applied to simulated data samples of similar size and features to those currently available, from which we estimate the significance of the expected discovery to reach many standard deviations.

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。

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