Measurement Of B Hadron Lifetimes İn Pp Collisions At s?=8s=8 Tev

dc.authorid249433en_US
dc.contributor.authorBilki, Burak
dc.contributor.author., ve diger
dc.date.accessioned2019-03-28T13:25:33Z
dc.date.available2019-03-28T13:25:33Z
dc.date.issued2018
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractMeasurements are presented of the lifetimes of the B0B0, B0sBs0, ?0b?b0, and B+cBc+ hadrons using the decay channels B0?J/?K?(892)0B0?J/?K?(892)0, B0?J/?K0SB0?J/?KS0, B0s?J/??+??Bs0?J/??+??, B0s?J/??(1020)Bs0?J/??(1020), ?0b?J/??0?b0?J/??0, and B+c?J/??+Bc+?J/??+. The data sample, corresponding to an integrated luminosity of 19.7fb-1fb-1, was collected by the CMS detector at the LHC in proton–proton collisions at s?=8TeVs=8TeV. The B0B0 lifetime is measured to be 453.0±1.6(stat)±1.8(syst)?m453.0±1.6(stat)±1.8(syst)?m in J/?K?(892)0J/?K?(892)0and 457.8±2.7(stat)±2.8(syst)?m457.8±2.7(stat)±2.8(syst)?m in J/?K0SJ/?KS0, which results in a combined measurement of c?B0=454.1±1.4(stat)±1.7(syst)?mc?B0=454.1±1.4(stat)±1.7(syst)?m. The effective lifetime of the B0sBs0meson is measured in two decay modes, with contributions from different amounts of the heavy and light eigenstates. This results in two different measured lifetimes: c?B0s?J/??+??=502.7±10.2(stat)±3.4(syst)?mc?Bs0?J/??+??=502.7±10.2(stat)±3.4(syst)?m and c?B0s?J/??(1020)=443.9±2.0(stat)±1.5(syst)?mc?Bs0?J/??(1020)=443.9±2.0(stat)±1.5(syst)?m. The ?0b?b0 lifetime is found to be 442.9±8.2(stat)±2.8(syst)?m442.9±8.2(stat)±2.8(syst)?m. The precision from each of these channels is as good as or better than previous measurements. The B+cBc+ lifetime, measured with respect to the B+B+ to reduce the systematic uncertainty, is 162.3±7.8(stat)±4.2(syst)±0.1(?B+)?m162.3±7.8(stat)±4.2(syst)±0.1(?B+)?m. All results are in agreement with current world-average valuesen_US
dc.identifier.doi10.1140/epjc/s10052-018-5929-3
dc.identifier.issn1434-6044
dc.identifier.pmid30956548en_US
dc.identifier.scopus2-s2.0-85048296754
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-018-5929-3
dc.identifier.wosWOS:000434419800001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer Linktr_TR
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.subjectCMStr_TR
dc.subjectPhysicstr_TR
dc.titleMeasurement Of B Hadron Lifetimes İn Pp Collisions At s?=8s=8 Teven_US
dc.typeArticleen_US

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