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arXiv 1209.3152hep-ex
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D衰变中的CP破坏

CP violation in D decays

Vincenzo Vagnoni

备注：
6 pages, 7 figures, Presented at Flavor Physics and CP Violation (FPCP 2012), Hefei, China, May 21-25, 2012
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摘要：

最近，LHCb首次报道了$D^0$介子的二体单Cabibbo抑制衰变中的$C P$破坏，引起了粲物理界的极大兴趣。在本文中，讨论了魅扇区中$C P$违反的最新测量结果。LHCb和CDF结果的时间积分$C P$不对称性在$D^0 \to π^-π^+$和$D^0 \to K^-K^+$衰变的一些细节。搜索$C P$违反Belle在其他两体衰变，即$D^0 \to K^0_S π^0$，$D^0 \to K^0_S η^{(\prime)}$，$D^+_{(s)} \to ϕπ^+$和$D^+ \to π^+ η^{(\prime)}$，也提出了。最后，CDF与$D^0 \to K^0_S π^+π^-$衰变，以及LHCb和BaBar与其他多体$D$衰变，所获得的结果显示。

英文摘要：

First evidence for $C P$ violation in two-body singly Cabibbo-suppressed decays of $D^0$ mesons reported by LHCb has recently aroused great interest in charm physics. In this document the latest measurements of $C P$ violation in the charm sector are discussed. LHCb and CDF results on time-integrated $C P$ asymmetries in $D^0 \to π^-π^+$ and $D^0 \to K^-K^+$ decays are presented in some detail. A search for $C P$ violation performed by Belle in other two-body decays, namely $D^0 \to K^0_S π^0$, $D^0 \to K^0_S η^{(\prime)}$, $D^+_{(s)} \to ϕπ^+$ and $D^+ \to π^+ η^{(\prime)}$, is also presented. Finally, results obtained by CDF with $D^0 \to K^0_S π^+π^-$ decays, as well as by LHCb and BaBar with other multi-body $D$ decays, are shown.

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