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SUMMARY:Direct CP violation in charmed meson decays
DTSTART;VALUE=DATE-TIME:20190701T023000Z
DTEND;VALUE=DATE-TIME:20190701T030000Z
DTSTAMP;VALUE=DATE-TIME:20260517T092304Z
UID:indico-contribution-27@indico.itp.ac.cn
DESCRIPTION:Speakers: 鄭 海揚  (中央研究院物理研究所)\nIn 201
 2 Cheng-Wei Chiang and I have studied direct CP violation in singly Cabibb
 o-suppressed D decays within the topological diagram approach. We conclude
 d that the direct CP asymmetry difference \\Delta A_{CP} between D0 -> K+ 
 K- and D0 -> pi+ pi- is about (-0.139+/- 0.004)\\% and (-0.151+/-0.004)\\%
  for the two solutions of W-exchange amplitudes\, respectively. The first 
 observation of CP violation in the charm sector was recently announced by 
 LHCb with the result \\Delta A_{CP}=(-0.154+/-0.029)\\%. This is a great t
 riumph of the standard model. In this talk I'll discuss its implications a
 nd present new predictions in other D -> PP and VP modes (P: pseudoscalar 
 meson\, V: vector meson).\n\nhttps://indico.itp.ac.cn/event/1/contribution
 s/27/
LOCATION:新疆乌鲁木齐金谷大酒店 三楼会议室
URL:https://indico.itp.ac.cn/event/1/contributions/27/
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