Journal article
Evidence for CP violation in time-integrated D0→h(-)h(+) decay rates.
- Abstract:
- A search for time-integrated CP violation in D(0)→h(-)h(+) (h=K, π) decays is presented using 0.62 fb(-1) of data collected by LHCb in 2011. The flavor of the charm meson is determined by the charge of the slow pion in the D(*+)→D(0)π(+) and D(*-)→D[over ¯](0)π(-) decay chains. The difference in CP asymmetry between D(0)→K(-)K(+) and D(0)→π(-)π(+), ΔA(CP)≡A(CP)(K(-)K(+))-A(CP)(π(-)π(+)), is measured to be [-0.82±0.21(stat)±0.11(syst)]%. This differs from the hypothesis of CP conservation by 3.5 standard deviations.
- Publication status:
- Published
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- Publisher copy:
- 10.1103/physrevlett.108.111602
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Authors
Bibliographic Details
- Journal:
- Physical Review Letters
- Volume:
- 108
- Issue:
- 11
- Pages:
- 111602
- Publication date:
- 2012-03-01
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- Source identifiers:
-
244812
Item Description
- Language:
- English
- Keywords:
- Pubs id:
-
pubs:244812
- UUID:
-
uuid:b6504ab7-a54d-4ca3-bcd0-7646d24403f1
- Local pid:
- pubs:244812
- Deposit date:
- 2012-12-19
Terms of use
- Copyright date:
- 2012
- Notes:
- 8 pages, 3 figures, 2 tables; v2 minor updates after journal review
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