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Title: | Studies of Bs2∗<sup>(5840)0</sup> and B <inf>s 1</inf>(5830) <sup>0</sup> mesons including the observation of the Bs2∗<sup>(5840)0</sup>→<sup>B0</sup>KS0 decay in proton-proton collisions at √s=8TeV |
Authors: | Sirunyan, AM Tumasyan, A Adam, W Ambrogi, F Asilar, E Bergauer, T Brandstetter, J Dragicevic, M Erö, J Del Valle, AE Flechl, M Frühwirth, R Ghete, VM Hrubec, J Jeitler, M Krammer, N Krätschmer, I Liko, D Madlener, T Mikulec, I Rad, N Rohringer, H Schieck, J Schöfbeck, R Spanring, M Spitzbart, D Taurok, A Waltenberger, W Wittmann, J Wulz, CE Zarucki, M Chekhovsky, V Mossolov, V Gonzalez, JS De Wolf, EA Di Croce, D Janssen, X Lauwers, J Pieters, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Zeid, SA Blekman, F D Hondt, J De Bruyn, I De Clercq, J Deroover, K Flouris, G Lontkovskyi, D Lowette, S Marchesini, I Moortgat, S Moreels, L Python, Q Skovpen, K Tavernier, S Van Doninck, W Van Mulders, P Van Parijs, I Beghin, D Bilin, B Brun, H Clerbaux, B De Lentdecker, G Delannoy, H Dorney, B Fasanella, G Favart, L Goldouzian, R Grebenyuk, A Kalsi, AK Lenzi, T Luetic, J Postiau, N Starling, E Thomas, L Velde, CV Vanlaer, P Vannerom, D Wang, Q Cornelis, T Dobur, D Fagot, A Gul, M Khvastunov, I Poyraz, D Roskas, C Trocino, D Tytgat, M Verbeke, W Vermassen, B Vit, M Zaganidis, N Bakhshiansohi, H Bondu, O Brochet, S Bruno, G Caputo, C David, P |
Keywords: | CMS;Physics;b hadrons;Heavy flavour spectroscopy;Hadron spectroscopy;Experimental results |
Issue Date: | 2018 |
Publisher: | Springer Verlag |
Citation: | European Physical Journal C, 2018, 78 (11) |
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 B0 s meson decays into B(∗)+K− and B(∗)0K0 S, 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 B0 s 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 B0K0 S is observed, together with a measurement of its branching fraction relative to the B∗ s2(5840)0 → B+K− decay |
URI: | http://bura.brunel.ac.uk/handle/2438/17287 |
DOI: | http://dx.doi.org/10.1140/epjc/s10052-018-6390-z |
ISSN: | 1434-6044 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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