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Test of Lepton Universality Using B+→K+ℓ+ℓ− Decays
| dc.contributor | Universitat Ramon Llull. La Salle | |
| dc.contributor | CERN | |
| dc.contributor.author | Badalov, Alexey | |
| dc.contributor.author | Calvo Gómez, Míriam | |
| dc.contributor.author | Vilasís Cardona, Xavier | |
| dc.contributor.author | LHCb Collaboration - CERN | |
| dc.date.accessioned | 2020-06-19T17:42:21Z | |
| dc.date.accessioned | 2023-10-02T06:32:07Z | |
| dc.date.available | 2020-06-19T17:42:21Z | |
| dc.date.available | 2023-10-02T06:32:07Z | |
| dc.date.created | 2014 | |
| dc.date.issued | 2014-10-06 | |
| dc.identifier.uri | http://hdl.handle.net/20.500.14342/3288 | |
| dc.description.abstract | A measurement of the ratio of the branching fractions of the B+→K+μ+μ− and B+→K+e+e− decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb−1, recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton invariant mass squared range 1<q2<6 GeV2/c4 is measured to be 0.745+0.090−0.074(stat)±0.036(syst). This value is the most precise measurement of the ratio of branching fractions to date and is compatible with the standard model prediction within 2.6 standard deviations. | eng |
| dc.format.extent | 10 p. | ca |
| dc.language.iso | eng | ca |
| dc.publisher | American Physical Society | ca |
| dc.relation.ispartof | Physical Review Letters, 2014, Vol. 113, No. 15 (Octubre) | ca |
| 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) | ca |
| dc.subject.other | Partícules (Física nuclear) | ca |
| dc.subject.other | Col·lisions (Física nuclear) | ca |
| dc.subject.other | Protons | ca |
| dc.title | Test of Lepton Universality Using B+→K+ℓ+ℓ− Decays | ca |
| dc.type | info:eu-repo/semantics/article | ca |
| dc.type | info:eu-repo/semantics/publishedVersion | ca |
| dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
| dc.embargo.terms | cap | ca |
| dc.subject.udc | 53 | |
| dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.113.151601 | ca |
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