Measurements of CP asymmetries in charmless four-body [lambda]0b and [xi]0b decays
A search for CP violation in charmless four-body decays of Λ0b and Ξ0b baryons with a proton and three charged mesons in the final state is performed. To cancel out production and detection charge-asymmetry effects, the search is carried out by measuring the difference between the CP asymmetries in...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
07 September 2019
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| In: |
The European physical journal. C, Particles and fields
Year: 2019, Volume: 79 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-019-7218-1 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-019-7218-1
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| Author Notes: | LHCb Collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurements of CP asymmetries in charmless four-body [lambda]0b and [xi]0b decays |c LHCb Collaboration* |
| 246 | 3 | 0 | |a Λ0b Ξ0b |
| 246 | 3 | 3 | |a Measurements of CP asymmetries in charmless four-body [lambda] 0 b and [xi] 0 b decays |
| 264 | 1 | |c 07 September 2019 | |
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| 500 | |a *LHCb Collaboration: R. Aaij, P. D'Argent, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, M. De Cian, M. Dziewiecki, S. Esen, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecná, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und 766 weitere] | ||
| 520 | |a A search for CP violation in charmless four-body decays of Λ0b and Ξ0b baryons with a proton and three charged mesons in the final state is performed. To cancel out production and detection charge-asymmetry effects, the search is carried out by measuring the difference between the CP asymmetries in a charmless decay and in a decay with an intermediate charmed baryon with the same particles in the final state. The data sample used was recorded in 2011 and 2012 with the LHCb detector and corresponds to an integrated luminosity of 3 fb−1. A total of 18 CP asymmetries are considered, either accounting for the full phase space of the decays or exploring specific regions of the decay kinematics. No significant CP-violation effect is observed in any of the measurements. | ||
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