Measurement of branching fraction ratios for B + → D *+ D − K + , B + → D *− D + K + , and B 0 → D *− D 0 K + decays
A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrat...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
December 21, 2020
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| In: |
Journal of high energy physics
Year: 2020, Issue: 12 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP12(2020)139 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP12(2020)139 Verlag, lizenzpflichtig, Volltext: https://link.springer.com/article/10.1007%2FJHEP12%282020%29139 |
| Author Notes: | The LHCb collaboration |
MARC
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| 245 | 1 | 0 | |a Measurement of branching fraction ratios for B + → D *+ D − K + , B + → D *− D + K + , and B 0 → D *− D 0 K + decays |c The LHCb collaboration |
| 246 | 3 | 3 | |a Measurement of branching fraction ratios for B plus → D ast plus D minus K plus , B plus → D ast minus D plus K plus , and B zero → D ast minus D zero K plus decays |
| 264 | 1 | |c December 21, 2020 | |
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| 500 | |a Im Titel ist [ast] als Tropfensternchen (englisch: teardrop-spoked asterisk) dargestellt | ||
| 500 | |a Im Titel sind "0", "[ast]", "-", "+" jeweils hochgestellt | ||
| 500 | |a The LHCb collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, M. Dziewiecki, G. Frau, D. Gerick, J. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, R. Kopecna, B. Leverington, P. Li, H. Malygina, J. Marks, S. Neubert, A. Piucci, M. Sarpis, N. Skidmore, S. Stemmle, D.A. Unverzagt, U. Uwer, C. Wang, L. Witola, A. Zhelezov [und viele weitere] | ||
| 500 | |a Gesehen am 22.02.2021 | ||
| 520 | |a A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios areBB+→D∗+D−K+BB+→D¯0D0K+=0.517±0.015±0.013±0.011,BB+→D∗−D+K+BB+→D¯0D0K+=0.577±0.016±0.013±0.013,BB0→D∗−D0K+BB0→D−D0K+=1.754±0.028±0.016±0.035,BB+→D∗+D−K+BB+→D∗−D+K+=0.907±0.033±0.014,$$ {\displaystyle \begin{array}{c}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast +}{D}^{-}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {\overline{D}}^0{D}^0{K}^{+}\right)}=0.517\pm 0.015\pm 0.013\pm 0.011,\\ {}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast -}{D}^{+}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {\overline{D}}^0{D}^0{K}^{+}\right)}=0.577\pm 0.016\pm 0.013\pm 0.013,\\ {}\begin{array}{c}\frac{\mathcal{B}\left({B}^0\to {D}^{\ast -}{D}^0{K}^{+}\right)}{\mathcal{B}\left({B}^0\to {D}^{-}{D}^0{K}^{+}\right)}=1.754\pm 0.028\pm 0.016\pm 0.035,\\ {}\frac{\mathcal{B}\left({B}^{+}\to {D}^{\ast +}{D}^{-}{K}^{+}\right)}{\mathcal{B}\left({B}^{+}\to {D}^{\ast -}{D}^{+}{K}^{+}\right)}=0.907\pm 0.033\pm 0.014,\end{array}\end{array}} $$ | ||
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