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Search for the Lepton-Flavor-Violating Decays B 0 s → e ± μ ∓ and B 0 → e ± μ ∓
| dc.contributor | Universitat Ramon Llull. La Salle | |
| dc.contributor | CERN | |
| dc.contributor.author | Calvo Gómez, Míriam | |
| dc.contributor.author | Camboni, Alessandro | |
| dc.contributor.author | Vilasís Cardona, Xavier | |
| dc.contributor.author | LHCb Collaboration - CERN | |
| dc.date.accessioned | 2021-05-07T04:50:26Z | |
| dc.date.accessioned | 2023-10-02T06:47:47Z | |
| dc.date.available | 2021-05-07T04:50:26Z | |
| dc.date.available | 2023-10-02T06:47:47Z | |
| dc.date.created | 2013-07 | |
| dc.date.issued | 2013-09 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14342/3479 | |
| dc.description.abstract | A search for the lepton-flavor-violating decays B 0 s → e ± μ ∓ and B 0 → e ± μ ∓ is performed with a data sample, corresponding to an integrated luminosity of 1.0 fb − 1 of p p collisions at √ s = 7 TeV , collected by the LHCb experiment. The observed number of B 0 s → e ± μ ∓ and B 0 → e ± μ ∓ candidates is consistent with background expectations. Upper limits on the branching fractions of both decays are determined to be B ( B 0 s → e ± μ ∓ ) < 1.1 ( 1.4 ) × 10 − 8 and B ( B 0 → e ± μ ∓ ) < 2.8 ( 3.7 ) × 10 − 9 at 90% (95%) confidence level (C.L.). These limits are a factor of 20 lower than those set by previous experiments. Lower bounds on the Pati-Salam leptoquark masses are also calculated, M LQ ( B 0 s → e ± μ ∓ ) > 101 TeV / c 2 and M LQ ( B 0 → e ± μ ∓ ) > 126 TeV / c 2 at 95% C.L., and are a factor of 2 higher than the previous bounds. | eng |
| dc.format.extent | 9 p. | cat |
| dc.language.iso | eng | cat |
| dc.publisher | American Physical Society | cat |
| dc.relation.ispartof | Physical Review Letters, 2013, Vol. 111, No. 14 | cat |
| dc.rights | Attribution 4.0 International | |
| dc.rights | © CERN | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.source | RECERCAT (Dipòsit de la Recerca de Catalunya) | |
| dc.subject.other | Gran col·lisionador d'hadrons (França i Suïssa) | cat |
| dc.subject.other | Partícules (Física nuclear) | cat |
| dc.subject.other | Interaccions d'hadrons | cat |
| dc.subject.other | Protons | cat |
| dc.title | Search for the Lepton-Flavor-Violating Decays B 0 s → e ± μ ∓ and B 0 → e ± μ ∓ | cat |
| dc.type | info:eu-repo/semantics/article | cat |
| dc.type | info:eu-repo/semantics/publishedVersion | cat |
| dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
| dc.embargo.terms | cap | cat |
| dc.subject.udc | 539 | |
| dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.111.141801 | cat |
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