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Measurement of the branching fraction of B0→ J/ψπ0 decays

Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G. (2024) In Journal of High Energy Physics 2024(5).
Abstract
The ratio of branching fractions between B0 → J/ψπ0 and B+ → J/ψK*+ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is (Formula presented.) where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 → J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in (Formula presented.) where the last uncertainty corresponds to that of the external input. This result is consistent with the current world average value and competitive with the most precise single measurement to date. © The Author(s) 2024.
Please use this url to cite or link to this publication:
author
; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
B Physics, Branching fraction, Hadron-Hadron Scattering
in
Journal of High Energy Physics
volume
2024
issue
5
article number
65
publisher
Springer
external identifiers
  • scopus:85201291475
ISSN
1029-8479
DOI
10.1007/JHEP05(2024)065
language
English
LU publication?
yes
id
bb0766df-b0c4-42b8-982a-a643854ea65b
date added to LUP
2024-10-10 09:44:50
date last changed
2025-04-04 14:56:20
@article{bb0766df-b0c4-42b8-982a-a643854ea65b,
  abstract     = {{The ratio of branching fractions between B0 → J/ψπ0 and B+ → J/ψK*+ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is (Formula presented.) where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 → J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in (Formula presented.) where the last uncertainty corresponds to that of the external input. This result is consistent with the current world average value and competitive with the most precise single measurement to date. © The Author(s) 2024.}},
  author       = {{Aaij, R. and Ruiz-Vidal, Joan and Zunica, G.}},
  issn         = {{1029-8479}},
  keywords     = {{B Physics; Branching fraction; Hadron-Hadron Scattering}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Measurement of the branching fraction of B0→ J/ψπ0 decays}},
  url          = {{http://dx.doi.org/10.1007/JHEP05(2024)065}},
  doi          = {{10.1007/JHEP05(2024)065}},
  volume       = {{2024}},
  year         = {{2024}},
}