Measurement of the Violation Parameter in and Decays
Journal Article
·
· Physical Review Letters
Asymmetries in the time-dependent rates of D0→K+K-and D0→$$π$$+$$π$$- decays are measured in a $pp$ collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3 fb-1. The asymmetries in effective decay widths between $$D$$0 and $$\bar{D}$$0 decays, sensitive to indirect $CP$ violation, are measured to be A$$Γ$$(K+K-) = (-0.30 ± 0.32 ± 0.10) × 10-3 and A$$Γ$$($$π$$+$$π$$-) = (0.46 ± 0.58 ± 0.12) × 10-3, where the first uncertainty is statistical and the second systematic. These measurements show no evidence for $CP$ violation and improve on the precision of the previous best measurements by nearly a factor of two.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- LHCb Collaboration
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1525226
- Journal Information:
- Physical Review Letters, Vol. 118, Issue 26; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 3 works
Citation information provided by
Web of Science
Web of Science
Updated measurement of decay-time-dependent asymmetries in and decays
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journal | January 2020 |
Measurement of the time-integrated CP asymmetry in D0 → KS0KS0 decays
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text | January 2018 |
Observation of CP Violation in Charm Decays
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text | January 2019 |
Observation of $C\!P$ violation in charm decays
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text | January 2019 |
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