Study of B+c → J/ψD+s and B+c → J/ψD*+s decays in pp collisions at √s=13 TeV with the ATLAS detector
A study of B+c → J/ψD+s B+c → J/ψD*+s decays using 139 fb−1 of integrated luminosity collected with the ATLAS detector from √s = 13 TeV pp collisions at the LHC is presented. The ratios of the branching fractions of the two decays to the branching fraction of the B+c → J/ψπ+→ J/ψπ+ decay are measure...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 5, 2022
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| In: |
Journal of high energy physics
Year: 2022, Issue: 8, Pages: 1-41 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2022)087 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP08(2022)087
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| Author Notes: | the ATLAS collaboration |
MARC
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| 245 | 1 | 0 | |a Study of B+c → J/ψD+s and B+c → J/ψD*+s decays in pp collisions at √s=13 TeV with the ATLAS detector |c the ATLAS collaboration |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Study of B + c → J/psiD + s and B + c → J/psiD *+ s decays in pp collisions at square root s = 13 TeV with the ATLAS detector |
| 264 | 1 | |c August 5, 2022 | |
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| 500 | |a The ATLAS collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, S.J. Dittmeier, M. Dunford, S. Franchino, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H-C. Schultz-Coulon, R. Stamen, S.M. Weber, M. Wessels, J. Zinsser [und viele weitere] | ||
| 500 | |a Im Text ist "+" und "*" hochgestellt, "s" und "c" tiefgestellt | ||
| 500 | |a Im Titel steht "s" unter dem Wurzelzeichen | ||
| 500 | |a Gesehen am 27.02.2023 | ||
| 520 | |a A study of B+c → J/ψD+s B+c → J/ψD*+s decays using 139 fb−1 of integrated luminosity collected with the ATLAS detector from √s = 13 TeV pp collisions at the LHC is presented. The ratios of the branching fractions of the two decays to the branching fraction of the B+c → J/ψπ+→ J/ψπ+ decay are measured: B(B+c → J/ψD+s) / B(B+c → J/ψπ+) = 2.76 ± 0.47 and B(B+c → J/ψD∗+s )/B(B+c → J/ψπ+) = 5.33 ± 0.96. The ratio of the branching fractions of the two decays is found to be B(B+c → J/ψD∗+s )/B(B+c →J/ψD+s ) = 1.93 ± 0.26. For the B+c → J/ψD∗+s decay, the transverse polarization fraction, Γ±±/Γ, is measured to be 0.70 ± 0.11. The reported uncertainties include both the statistical and systematic components added in quadrature. The precision of the measurements exceeds that in all previous studies of these decays. These results supersede those obtained in the earlier ATLAS study of the same decays with √s = 7 and 8 TeV pp collision data. A comparison with available theoretical predictions for the measured quantities is presented. | ||
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