Search for direct CP violation in charged charmless B → PV decays
Measurements of 𝐶𝑃 asymmetry in charmless 𝐵→𝑃𝑉 decays are presented, where 𝑃 and 𝑉 denote a pseudoscalar and a vector meson, respectively. Five different 𝐵→𝑃𝑉 decays from four final states, 𝐵±→𝜋±𝜋+𝜋−, 𝐵±→𝐾±𝜋+𝜋−, 𝐵±→𝐾±𝐾+𝐾− and 𝐵±→𝜋±𝐾+𝐾− are analyzed. The measurements are based on a method...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 July 2023
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| In: |
Physical review
Year: 2023, Jahrgang: 108, Heft: 1, Pages: 1-13 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.108.012013 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.108.012013 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.108.012013 
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| Verfasserangaben: | R. Aaij et al. (LHCb Collaboration) |
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| 245 | 1 | 0 | |a Search for direct CP violation in charged charmless B → PV decays |c R. Aaij et al. (LHCb Collaboration) |
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| 500 | |a Gesehen am 12.07.2024 | ||
| 500 | |a LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, R. Caspary, G. Frau, J.P. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, A. Zhelezov [und viele weitere] | ||
| 520 | |a Measurements of asymmetry in charmless → decays are presented, where and denote a pseudoscalar and a vector meson, respectively. Five different → decays from four final states, ±→±+−, ±→±+−, ±→±+− and ±→±+− are analyzed. The measurements are based on a method that does not require full amplitude analyses, and are performed using proton-proton collision data at a center-of-mass energy of 13 TeV collected by LHCb between 2015 and 2018, corresponding to an integrated luminosity of 5.9 fb−1. In the +− -wave, in the region dominated by the ±→(770)0± decay, a asymmetry of =+0.150±0.019±0.011 is measured, where the first uncertainty is statistical and the second is systematic. This is the first observation of violation in this process. For the other four decay channels, in regions dominated by the ±→(770)0±, ±→(¯ ) *(892)0±, ±→(¯ ) *(892)0± and ±→(1020)± decays, asymmetries in the -wave compatible with zero are measured. | ||
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