Study of Bc+→χcπ+ decays
(2024) In Journal of High Energy Physics 2024(2).- Abstract
- A study of Bc+→χcπ+ decays is reported using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The decay Bc+→χc2π+ is observed for the first time, with a significance exceeding seven standard deviations. The relative branching fraction with respect to the Bc+→J/ψπ+ decay is measured to be (Formula presented.) where the first uncertainty is statistical, the second is systematic, and the third is due to the knowledge of the χc2→ J/ψγ branching fraction. No significant Bc+→χc1π+ signal is observed and an upper limit for the relative branching fraction for the Bc+→χc1π+ and Bc+→χc2π+ decays of (Formula presented.) is set at the 90%... (More)
- A study of Bc+→χcπ+ decays is reported using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The decay Bc+→χc2π+ is observed for the first time, with a significance exceeding seven standard deviations. The relative branching fraction with respect to the Bc+→J/ψπ+ decay is measured to be (Formula presented.) where the first uncertainty is statistical, the second is systematic, and the third is due to the knowledge of the χc2→ J/ψγ branching fraction. No significant Bc+→χc1π+ signal is observed and an upper limit for the relative branching fraction for the Bc+→χc1π+ and Bc+→χc2π+ decays of (Formula presented.) is set at the 90% confidence level. © The Author(s) 2024. (Less)
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https://lup.lub.lu.se/record/6ee4afd4-aac9-4e96-b8ed-e6ecc22cd72d
- author
- Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G.
- author collaboration
- organization
- publishing date
- 2024
- 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
- 2
- article number
- 173
- publisher
- Springer
- external identifiers
-
- scopus:85194763215
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP02(2024)173
- language
- English
- LU publication?
- yes
- id
- 6ee4afd4-aac9-4e96-b8ed-e6ecc22cd72d
- date added to LUP
- 2024-08-30 14:45:22
- date last changed
- 2024-08-30 14:58:23
@article{6ee4afd4-aac9-4e96-b8ed-e6ecc22cd72d,
abstract = {{A study of Bc+→χcπ+ decays is reported using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The decay Bc+→χc2π+ is observed for the first time, with a significance exceeding seven standard deviations. The relative branching fraction with respect to the Bc+→J/ψπ+ decay is measured to be (Formula presented.) where the first uncertainty is statistical, the second is systematic, and the third is due to the knowledge of the χc2→ J/ψγ branching fraction. No significant Bc+→χc1π+ signal is observed and an upper limit for the relative branching fraction for the Bc+→χc1π+ and Bc+→χc2π+ decays of (Formula presented.) is set at the 90% confidence level. © 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 = {{2}},
publisher = {{Springer}},
series = {{Journal of High Energy Physics}},
title = {{Study of Bc+→χcπ+ decays}},
url = {{http://dx.doi.org/10.1007/JHEP02(2024)173}},
doi = {{10.1007/JHEP02(2024)173}},
volume = {{2024}},
year = {{2024}},
}