2015/09/30 by Xiaoyun Wang, Xiao-Yun Wang, A. Guskov +3 · 17 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Baryon #Hadron #Lambda #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ph
paper · pdf · doi:10.1103/physrevd.92.094032
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 92(9) (American Physical Society) · 7 pages, 5 figures
arxiv created 2015/10/11 · openalex publication_date 2015/11/25 · arxiv updated 2015/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
By assuming that the \mathrm\ensuremathΛc*(2940) is a pD*0 molecular state with spin-parity JP=(1)/(2)+ and JP=(1)/(2)^\ensuremath-, the photoproduction of charmed \mathrm\ensuremathΛc*(2940) baryon in the \ensuremathγn\ensuremath→D^\ensuremath-\mathrm\ensuremathΛc*(2940)+ process is investigated with an effective Lagrangian approach. It is found that the contributions from the t-channel with D* exchange are dominant, while those from the s-channel with nucleon pole exchange give a sizeable contribution around the threshold. The contributions from the u-channel and contact term are very small. The total cross section of the \ensuremathγn\ensuremath→D^\ensuremath-\mathrm\ensuremathΛc*(2940)+ reaction is estimated, which indicate it is feasible to searching for the charmed \mathrm\ensuremathΛc*(2940) baryon at the COMPASS experiment.