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Observation of Λ0b → D+pπ−π− and Λ0b → D*+pπ−π− decays
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LHCb Collaboration (Including:
). (2022) Observation of Λ0b → D+pπ−π− and Λ0b → D*+pπ−π− decays. Journal of High Energy Physics, 2022 (3). 153. doi:10.1007/jhep03(2022)153 ISSN 1029-8479.
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WRAP-Observation-of-0b-D-p-and-0b-D-p-decays-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (828Kb) | Preview |
Official URL: https://doi.org/10.1007/jhep03(2022)153
Abstract
The multihadron decays Λ0b → D+pπ−π− and Λ0b → D*+pπ−π− are observed in data corresponding to an integrated luminosity of 3 fb−1, collected in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV by the LHCb detector. Using the decay Λ0b → Λ+cπ+π−π− as a normalisation channel, the ratio of branching fractions is measured to be
B(Λ0b→D+pπ−π−)B(Λ0b→Λ0cπ+π−π−)×B(D+→K−π+π+)B(Λ0c→pK−π−)=(5.35±0.21±0.16)%,
where the first uncertainty is statistical and the second systematic. The ratio of branching fractions for the Λ0b → D*+pπ−π− and Λ0b → D+pπ−π− decays is found to be
B(Λ0b→D∗+pπ−π−)B(Λ0b→D+pπ−π−)×(B(D∗+→D+π0)+B(D∗+→D+γ))=(61.3±4.3±4.0)%.
| 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): | Beta decay, Particles (Nuclear physics) -- Flavor, Hadrons -- Scattering | |||||||||||||||||||||
| Journal or Publication Title: | Journal of High Energy Physics | |||||||||||||||||||||
| Publisher: | Springer | |||||||||||||||||||||
| ISSN: | 1029-8479 | |||||||||||||||||||||
| Official Date: | 23 March 2022 | |||||||||||||||||||||
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| Volume: | 2022 | |||||||||||||||||||||
| Number: | 3 | |||||||||||||||||||||
| Number of Pages: | 30 | |||||||||||||||||||||
| Article Number: | 153 | |||||||||||||||||||||
| DOI: | 10.1007/jhep03(2022)153 | |||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||
| Date of first compliant deposit: | 22 November 2022 | |||||||||||||||||||||
| Date of first compliant Open Access: | 23 November 2022 | |||||||||||||||||||||
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