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Observation of the B0→D*0K+π− and B0s→D*0K−π+ decays
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LHCb Collaboration (Including:
). (2022) Observation of the B0→D*0K+π− and B0s→D*0K−π+ decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), 105 . 072005. doi:10.1103/PhysRevD.105.072005 ISSN 1550-7998.
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WRAP-Observation-of-the-B0-D0k--and-B0s-D0K--decays-LHCb-Collaboration-22.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1037Kb) | Preview |
Official URL: https://doi/10.1103/PhysRevD.105.072005
Abstract
The first observations of B 0 → ¯ D ∗ ( 2007 ) 0 K + π − and B 0 s → ¯ D ∗ ( 2007 ) 0 K − π + decays are presented, and their branching fractions relative to that of the B 0 → ¯ D ∗ ( 2007 ) 0 π + π − decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle. It is also important to understand them as a source of potential background in determinations of γ from B + → D K + and B 0 → D K + π − decays. The analysis is based on a sample corresponding to an integrated luminosity of 5.4 fb − 1 of proton-proton collision data at 13 TeV center-of-mass energy recorded with the LHCb detector. The ¯ D ∗ ( 2007 ) 0 mesons are fully reconstructed in the ¯ D 0 π 0 and ¯ D 0 γ channels with the ¯ D 0 → K + π − decay. A novel weighting method is used to subtract background while simultaneously applying an event-by-event efficiency correction to account for resonant structures in the decays.
| Item Type: | Journal Article | |||||||||||||||||||||
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| Subjects: | Q Science > QC Physics | |||||||||||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | B mesons -- Decay, Particles (Nuclear physics), Quantum flavor dynamics, Quarks, Matrix mechanics, Unitary operators | |||||||||||||||||||||
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | |||||||||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||||||||
| ISSN: | 1550-7998 | |||||||||||||||||||||
| Official Date: | 20 April 2022 | |||||||||||||||||||||
| Dates: |
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| Volume: | 105 | |||||||||||||||||||||
| Number of Pages: | 22 | |||||||||||||||||||||
| Article Number: | 072005 | |||||||||||||||||||||
| DOI: | 10.1103/PhysRevD.105.072005 | |||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||
| Date of first compliant deposit: | 24 May 2022 | |||||||||||||||||||||
| Date of first compliant Open Access: | 25 May 2022 | |||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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