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arXiv 0812.4796hep-phhep-ex
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对$B^0 \to J/ψK^0$中CP不对称性的双重CKM抑制校正

Doubly CKM-suppressed corrections to CP asymmetries in $B^0 \to J/ψK^0$

Michael Gronau, Jonathan L. Rosner

摘要:

$B^0\to J/ψK_S$中的双重CKM抑制幅度导致CP不对称性$S = \sin 2β, C=0$的校正,这可能通过长距离重新散射来增强。有人建议,这种增强可能会导致百分之几的校正。我们计算了$10^{-3}$阶数的上界,利用测量的无粲$|ΔS|=1$ $B^0$衰变的分支比对再散射修正。

英文摘要:

A doubly CKM-suppressed amplitude in $B^0\to J/ψK_S$ leads to corrections in CP asymmetries $S = \sin 2β, C=0$, which may be enhanced by long-distance rescattering. It has been suggested that this enhancement may lead to several percent corrections. We calculate an upper bound of order $10^{-3}$ on rescattering corrections using measured branching ratios for charmless $|ΔS|=1$ $B^0$ decays.

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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