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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1455| Title: | Studies of B-s2*(5840)(0) and B-s1(5830)(0) mesons including the observation of the B-s2*(5840)(0) -> (BKS0)-K-0 decay in proton- proton collisions at root s=8 TeV |
| Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V. KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | CMS Physics b hadrons Heavy flavour spectroscopy Hadron spectroscopy TOC-DEC-2018 2018 |
| Issue Date: | Nov-2018 |
| Publisher: | Springer Nature |
| Citation: | European Physical Journal C, Vol. 78(11). |
| Abstract: | Measurements of B-s2*(5840)(0) and B-s1(5830)(0) mesons are performed using a data sample of proton-proton 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 B-s(0) meson decays into B(*)(+)K(-)and B(*)K-0(S)0, where the B+ and B-0 mesons are identified using the decays B+ -> J/psi K+ and B-0 -> J/psi K* (892)(0). The masses of the P-wave B-s(0) 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 (BKS0)-K-0 is observed, together with a measurement of its branching fraction relative to the B-s2*(5840)(0) -> B+K- decay. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1455 https://doi.org/10.1140/epjc/s10052-018-6390-z |
| ISSN: | 1434-6044 1434-6052 |
| Appears in Collections: | JOURNAL ARTICLES |
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