How to extract CP-violating asymmetries from angular correlations.
How to extract CP-violating asymmetries from angular correlations.
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如何从角度相关性中提取 CP 破坏不对称性。
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
H. Lipkin
中科院分区：
文献类型：
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作者：
I. Dunietz;H. Quinn;A. Snyder;W. Toki;H. Lipkin
大的{ital CP}破坏效应可发生在随时间演化的{ital B}{sup 0}衰减到确定的{ital CP}本征态。进入这些独特的{italCP}本征模的速率是微小的。这篇文章提倡使用许多额外的模式，因为角动量的混合物不是{italCP}本征态。自然地，对于那些模式，发生{italCP}不对称性的部分且有时大的抵消。然而，对它们的角相关的详细研究使得能够投影到确定的{italCP}本征态上，从而恢复完整的{italCP}不对称性。
Large {ital CP}-violation effects can occur for time-evolved {ital B}{sup 0} decays into definite {ital CP} eigenstates. The rates into these unique {ital CP} eigenmodes are tiny. This article advocates the use of many additional modes that are not {ital CP} eigenstates because of mixtures of angular momenta. Naively, for those modes a partial and sometimes large cancellation of the {ital CP} asymmetry occurs. However, a detailed study of their angular correlations enables the projection onto definite {ital CP} eigenstates, and thus recovers the full {ital CP} asymmetry.