Measurement of the CP violation parameter Aγ in D0→K+K− and D0→π+π− decays
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 D0 and ¯¯¯D0 decays, sensitive to...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
30 June 2017
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| In: |
Physical review letters
Year: 2017, Jahrgang: 118, Heft: 26 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.118.261803 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.118.261803 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.118.261803 |
| Verfasserangaben: | R. Aaij et al.* (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Measurement of the CP violation parameter Aγ in D0→K+K− and D0→π+π− decays |c R. Aaij et al.* (LHCb Collaboration) |
| 246 | 3 | 3 | |a Measurement of the CP violation parameter A gamma in D 0 → K plus K minus and D 0 → pi plus pi minus decays |
| 264 | 1 | |c 30 June 2017 | |
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| 500 | |a Im Titel wird "Gamma" groß geschrieben und als griechischer Buchstabe dargestellt | ||
| 500 | |a Im Titel sind die Zeichen "+", "0" und "-" hochgestellt | ||
| 500 | |a Gesehen am 29.08.2018 | ||
| 500 | |a R. Aaij, P. d'Argent, S. Bachmann, S. Braun, A. Comerma-Montells, M. De Cian, S. Esen, C. Färber, D. Gerick, E. Gersabeck, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, R. Kopecná, P. Krokovny, C. Langenbruch, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, P. Seyfert, M. Stahl, S. Stemmle, J. von Tilburg, U. Uwer, A. Zhelezov [und weitere] | ||
| 520 | |a 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 D0 and ¯¯¯D0 decays, sensitive to indirect CP violation, are measured to be AΓ(K+K−)=(−0.30±0.32±0.10)×10−3 and AΓ(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. | ||
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