CERN Accelerating science

Article
Report number arXiv:2112.11428 ; LHCb-PAPER-2021-043 ; CERN-EP-2021-262 ; LHCB-PAPER-2021-043
Title Observation of the B0¯D0K+πB0¯¯¯¯¯D0K+π and B0s¯D0Kπ+B0s¯¯¯¯¯D0Kπ+ decays
Author(s) LHCb Collaboration  Show all 1005 authors
Corporate Author(s) LHCb Collaboration
Publication 2022-04-01
Imprint 07 Jan 2022
Number of pages 32
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-043.html (LHCb public pages)
In: Phys. Rev. D 105 (2022) 072005
DOI 10.1103/PhysRevD.105.072005 (publication)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; B physics ; branching fraction ; CP violation ; CKM angle gamma
Abstract The first observations of B0¯D(2007)0K+πB0¯¯¯¯¯D(2007)0K+π and B0s¯D(2007)0Kπ+B0s¯¯¯¯¯D(2007)0Kπ+ decays are presented, and their branching fractions relative to that of the B0¯D(2007)0π+πB0¯¯¯¯¯D(2007)0π+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 CKM unitarity triangle. It is also important to understand them as a source of potential background in determinations of γ from B+DK+ and B0DK+π decays. The analysis is based on a sample corresponding to an integrated luminosity of 5.4fb1 of proton--proton collision data at 13TeV centre-of-mass energy recorded with the LHCb detector. The ¯D(2007)0 mesons are fully reconstructed in the ¯D0π0 and ¯D0γ channels, with the ¯D0K+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.
Copyright/License publication: © 2022-2024 CERN (License: CC BY 4.0), sponsored by SCOAP³
preprint: © 2021-2024 CERN (License: CC BY 4.0)



Corresponding record in: Inspire
Email contact: lhcb.secretariat@cern.ch


 Record created 2022-01-07, last modified 2024-10-04


Fulltext:
LHCb-PAPER-2021-043 - Download fulltextPDF
2112.11428 - Download fulltextPDF
Publication - Download fulltextPDF
(additional files)
  • Send to ScienceWise.info