First observation of the decay B0→D0D[bar]0K+π−
The first observation of the decay B0→D0¯D0K+π− is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 collected by the LHCb experiment in 2011, 2012 and 2016. The measurement is performed in the full kinematically allowed range of the decay outside of t...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
22 September 2020
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| In: |
Physical review
Year: 2020, Volume: 102, Issue: 5 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.102.051102 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.102.051102 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.102.051102 
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| Author Notes: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a First observation of the decay B0→D0D[bar]0K+π− |c R. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a First observation of the decay B 0 → D 0 D bar 0 K + pi − |
| 264 | 1 | |c 22 September 2020 | |
| 300 | |a 11 | ||
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| 500 | |a 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. Kopecná, B. Leverington, P. Li, H. Malygina, J. Marks, A. Piucci, S. Stemmle, D.J. Unverzagt, U. Uwe, C. Wang, L. Witola, A. Zhelezov [und viele weitere] | ||
| 500 | |a Im Titel sind die Ziffern "0" und die Plus- und Minuszeichen hochgestellt | ||
| 500 | |a Im Titel ist das zweite D im Ausdruck "D0D0K+π−" mit einem Oberstrich dargestellt | ||
| 500 | |a Gesehen am 27.10.2020 | ||
| 520 | |a The first observation of the decay B0→D0¯D0K+π− is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 collected by the LHCb experiment in 2011, 2012 and 2016. The measurement is performed in the full kinematically allowed range of the decay outside of the D*− region. The ratio of the branching fraction relative to that of the control channel B0→D*−D0K+ is measured to be R=(14.2±1.1±1.0)%, where the first uncertainty is statistical and the second is systematic. The absolute branching fraction of B0→D0¯D0K+π− decays is thus determined to be B(B0→D0¯D0K+π−)=(3.50±0.27±0.26±0.30)×10−4, where the third uncertainty is due to the branching fraction of the control channel. This decay mode is expected to provide insights to spectroscopy and the charm-loop contributions in rare semileptonic decays. | ||
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