학술논문
Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV
Document Type
article
Author
Sirunyan, AM; Tumasyan, A; Adam, W; Bergauer, T; Dragicevic, M; Escalante Del Valle, A; Frühwirth, R; Jeitler, M; Krammer, N; Lechner, L; Liko, D; Mikulec, I; Pitters, FM; Rad, N; Schieck, J; Schöfbeck, R; Spanring, M; Templ, S; Waltenberger, W; Wulz, CE; Zarucki, M; Chekhovsky, V; Litomin, A; Makarenko, V; Suarez Gonzalez, J; Darwish, MR; De Wolf, EA; Janssen, X; Kello, T; Lelek, A; Pieters, M; Rejeb Sfar, H; Van Haevermaet, H; Van Mechelen, P; Van Putte, S; Van Remortel, N; Blekman, F; Bols, ES; Chhibra, SS; D’Hondt, J; De Clercq, J; Lontkovskyi, D; Lowette, S; Marchesini, I; Moortgat, S; Morton, A; Müller, D; Python, Q; Tavernier, S; Van Doninck, W; Van Mulders, P; Beghin, D; Bilin, B; Clerbaux, B; De Lentdecker, G; Dorney, B; Favart, L; Grebenyuk, A; Kalsi, AK; Makarenko, I; Moureaux, L; Pétré, L; Popov, A; Postiau, N; Starling, E; Thomas, L; Vander Velde, C; Vanlaer, P; Vannerom, D; Wezenbeek, L; Cornelis, T; Dobur, D; Gruchala, M; Khvastunov, I; Mestdach, G; Niedziela, M; Roskas, C; Skovpen, K; Tytgat, M; Verbeke, W; Vermassen, B; Vit, M; Bruno, G; Bury, F; Caputo, C; David, P; Delaere, C; Delcourt, M; Donertas, IS; Giammanco, A; Lemaitre, V; Mondal, K; Prisciandaro, J; Taliercio, A; Teklishyn, M; Vischia, P; Wertz, S; Wuyckens, S; Alves, GA; Hensel, C
Source
Journal of High Energy Physics. 2021(4)
Subject
Language
Abstract
Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction. [Figure not available: see fulltext.]