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Study of D sJ (*) + mesons decaying to D ∗ + K S 0 and D *0 K + final states

2016/01/31 by LHCb collaboration, R. Aaij, C. Abellán Beteta +737 · 17 citations
Chemistry · Mathematics · Physics and Astronomy · #Algorithm #Analytical Chemistry (journal) #Branching (polymer chemistry) #Branching fraction #Chemistry #High-Energy Particle Collisions Research #Mathematics #Meson #Nuclear physics #Parity (physics) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #State (computer science) #hep-ex

paper · pdf · doi:10.1007/jhep02(2016)133

published in Journal of High Energy Physics 2016(2) (Springer Nature) · 26 pages, 9 figures, Submitted to JHEP, All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-052.html

openalex publication_date 2016/02/01 · arxiv created 2016/02/04 · arxiv updated 2016/03/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

A search is performed for D ( * )+ sJ mesons in the reactions pp D * + K 0 S X and pp D * 0 K + X using data collected at centre-of-mass energies of 7 and 8 TeV with the LHCb detector. For the D * + K 0 S final state, the decays D * + D 0 + with D 0 K - + and D 0 K - + + -are used. For D * 0 K + , the decay D * 0 D 0 0 with D 0 K - + is used. A prominent D s1 (2536) + signal is observed in both D * + K 0 S and D * 0 K + final states. The resonances D * s1 (2700) + and D * s3 (2860) + are also observed, yielding information on their properties, including spin-parity assignments. The decay D * s2 (2573) + D * + K 0 S is observed for the first time, at a significance of 6.9 , and its branching fraction relative to the D * s2 (2573) + D + K 0 S decay mode is measured.

Citations