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1826214267365359616
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MIT
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© 2019 CERN, for the LHCb Collaboration. The radiative decay Λb0→Λγ is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of 1.7 fb-1 collected by the LHCb experiment at a center-of-mass energy of 13 TeV. Its branching fraction is measured exploiting the B0→K∗0γ decay as a normalization mode and is found to be B(Λb0→Λγ)=(7.1±1.5±0.6±0.7)×10-6, where the quoted uncertainties are statistical, systematic, and systematic from external inputs, respectively. This is the first observation of a radiative decay of a beauty baryon.
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2024-09-23T16:02:26Z
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Article
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mit-1721.1/133325
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| institution |
Massachusetts Institute of Technology
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| language |
English
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2024-09-23T16:02:26Z
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| publishDate |
2021
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American Physical Society (APS)
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dspace
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| spelling |
mit-1721.1/1333252022-04-01T17:20:48Z First Observation of the Radiative Decay Λ b 0 → Λ γ © 2019 CERN, for the LHCb Collaboration. The radiative decay Λb0→Λγ is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of 1.7 fb-1 collected by the LHCb experiment at a center-of-mass energy of 13 TeV. Its branching fraction is measured exploiting the B0→K∗0γ decay as a normalization mode and is found to be B(Λb0→Λγ)=(7.1±1.5±0.6±0.7)×10-6, where the quoted uncertainties are statistical, systematic, and systematic from external inputs, respectively. This is the first observation of a radiative decay of a beauty baryon. 2021-10-27T19:52:08Z 2021-10-27T19:52:08Z 2019 2021-04-22T15:12:10Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133325 en 10.1103/PHYSREVLETT.123.031801 Physical Review Letters Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Physical Society (APS) APS
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| spellingShingle |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title_full |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title_fullStr |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title_full_unstemmed |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title_short |
First Observation of the Radiative Decay Λ b 0 → Λ γ
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| title_sort |
first observation of the radiative decay λ b 0 λ γ
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| url |
https://hdl.handle.net/1721.1/133325
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