Studies of B*s2(5840)0 and Bs1(5830)0 mesons including the observation of the B*s2(5840)0 → B0K0S decay in proton-proton collisions at √s = 8 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2019-05-15T02:37:51Z | pt_BR |
dc.date.issued | 2018 | pt_BR |
dc.identifier.issn | 1434-6044 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/194239 | pt_BR |
dc.description.abstract | Measurements of B*s2(5840)0 and Bs1(5830)0 mesons are performed using a data sample of protonproton collisions corresponding to an integrated luminosity of 19.6 fb−1, collected with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV. The analysis studies P-wave B0s meson decays into B(*)+K− and B(*)0K0S , where the B+ and B0 mesons are identified using the decays B+ → J/ψK+ and B0 → J/ψK+ (892)0. The masses of the P-wave B0s meson states are measured and the natural width of the B*s2(5840)0 state is determined. The first measurement of the mass difference between the charged and neutral B* mesons is also presented. The B*s2(5840)0 decay to B0K0S is observed, together with a measurement of its branching fraction relative to the B*s2(5840)0 → B+K− decay. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The European physical journal. C, Particles and fields. Berlin. Vol. 78, no. 11 (Nov. 2018), 939, 26 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Mésons B | pt_BR |
dc.title | Studies of B*s2(5840)0 and Bs1(5830)0 mesons including the observation of the B*s2(5840)0 → B0K0S decay in proton-proton collisions at √s = 8 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001085347 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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