Observation of the decay Ξ−b→pK−K
Decays of the Ξ−b and Ω−b baryons to the charmless final states ph−h'−, where h(') denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies √s=7 and 8 TeV, corresponding to an int...
| Główni autorzy: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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American Physical Society
2017
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| _version_ | 1826259641813696512 |
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| author | Aaij, R Adeva, B Adinolfi, M Evans, T Gandini, P Gruberg Cazon, B Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Jurik, N Malde, S Nandi, A Rollings, A Topp-Joergensen, S Veneziano, G Wilkinson, G LHCb Collaboration |
| author_facet | Aaij, R Adeva, B Adinolfi, M Evans, T Gandini, P Gruberg Cazon, B Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Jurik, N Malde, S Nandi, A Rollings, A Topp-Joergensen, S Veneziano, G Wilkinson, G LHCb Collaboration |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | Decays of the Ξ−b and Ω−b baryons to the charmless final states ph−h'−, where h(') denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies √s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb^−1. The decay Ξ−b→pK−K− is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξ−b→pK−π− decay. Results are reported, relative to the B−→K+K−K− normalization channel, for the products of branching fractions and b-hadron production fractions. The branching fractions of Ξ−b→pK−π− and Ξ−b→pπ−π− relative to Ξ−b→pK−K− decays are also measured. |
| first_indexed | 2024-03-06T18:53:05Z |
| format | Journal article |
| id | oxford-uuid:10e850e6-e2f8-4bcf-9030-a4e971af2095 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:53:05Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:10e850e6-e2f8-4bcf-9030-a4e971af20952022-03-26T09:59:10ZObservation of the decay Ξ−b→pK−KJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:10e850e6-e2f8-4bcf-9030-a4e971af2095Symplectic Elements at OxfordAmerican Physical Society2017Aaij, RAdeva, BAdinolfi, MEvans, TGandini, PGruberg Cazon, BHadavizadeh, THarnew, NHill, DJalocha, PJohn, MJurik, NMalde, SNandi, ARollings, ATopp-Joergensen, SVeneziano, GWilkinson, GLHCb CollaborationDecays of the Ξ−b and Ω−b baryons to the charmless final states ph−h'−, where h(') denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies √s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb^−1. The decay Ξ−b→pK−K− is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξ−b→pK−π− decay. Results are reported, relative to the B−→K+K−K− normalization channel, for the products of branching fractions and b-hadron production fractions. The branching fractions of Ξ−b→pK−π− and Ξ−b→pπ−π− relative to Ξ−b→pK−K− decays are also measured. |
| spellingShingle | Aaij, R Adeva, B Adinolfi, M Evans, T Gandini, P Gruberg Cazon, B Hadavizadeh, T Harnew, N Hill, D Jalocha, P John, M Jurik, N Malde, S Nandi, A Rollings, A Topp-Joergensen, S Veneziano, G Wilkinson, G LHCb Collaboration Observation of the decay Ξ−b→pK−K |
| title | Observation of the decay Ξ−b→pK−K |
| title_full | Observation of the decay Ξ−b→pK−K |
| title_fullStr | Observation of the decay Ξ−b→pK−K |
| title_full_unstemmed | Observation of the decay Ξ−b→pK−K |
| title_short | Observation of the decay Ξ−b→pK−K |
| title_sort | observation of the decay ξ b pk k |
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