Λc*(2940)+ photoproduction off the neutron

Xiao-Yun Wang, Alexey Guskov, and Xu-Rong Chen
Phys. Rev. D 92, 094032 – Published 25 November 2015

Abstract

By assuming that the Λc*(2940) is a pD*0 molecular state with spin-parity JP=12+ and JP=12, the photoproduction of charmed Λc*(2940) baryon in the γnDΛc*(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 γnDΛc*(2940)+ reaction is estimated, which indicate it is feasible to searching for the charmed Λc*(2940) baryon at the COMPASS experiment.

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  • Received 9 September 2015

DOI:https://doi.org/10.1103/PhysRevD.92.094032

© 2015 American Physical Society

Authors & Affiliations

Xiao-Yun Wang1,2,3,*, Alexey Guskov4,†, and Xu-Rong Chen1,3

  • 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Research Center for Hadron and CSR Physics, Institute of Modern Physics of CAS and Lanzhou University, Lanzhou 730000, China
  • 4Joint Institute for Nuclear Research, Dubna 141980, Russia

  • *xywang@impcas.ac.cn
  • avg@jinr.ru

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Issue

Vol. 92, Iss. 9 — 1 November 2015

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