Pentaquark photoproduction

[摘要] We present results and suggestions on how to confirm the existence and resonant nature of the Pc(4450) detected at LHCb through photoproduction experiments. We find that this narrow structure might have escaped detection in past experiments and use those to give a constraint for the upper limit of the branching ratio/coupling to the J/ψ p channel.

[发布机构] Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad de México; 04510, Mexico^1;Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Valencia; E-46071, Spain^2;Theory Center, Thomas Jefferson National Accelerator Facility, Newport News; VA; 23606, United States^3

[关键词] Branching ratio;P channels;Pentaquarks;Photoproductions;Upper limits