Lu, QF
; Dong, YB (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
; Wang, XY
; Xie, JJ
; Chen, XR (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
; Wang, XY (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
; Wang, XY
; Xie, JJ
; Chen, XR (reprint author), Chinese Acad Sci, Inst Modern Phys, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.
; Wang, XY
; Xie, JJ
; Chen, XR (reprint author), Lanzhou Univ, Lanzhou 730000, Peoples R China.
; Xie, JJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
; Dong, YB (reprint author), Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China.
文章类型:
Article
英文摘要:
We investigate the neutral hidden charm pentaquark states P-c(0)(4380) and P-c(0)(4450) in the pi(-) p -> J/psi n reaction within an effective Lagrangian approach. The background contributions for the process mainly come from t-channel pi and rho meson exchanges. The contributions of the P-c(0)(4380) and P-c(0)(4450) states give clear peak structures in the magnitude of 1 mu b at center-of-mass energies 4.38 GeV and 4.45 GeV in the total cross sections. Hence, this reaction may provide a new platform to search for neutral P-c states. It is expected that our estimated total cross sections, together with the angular distributions, can be tested by future experiments at J-PARC.
National Natural Science Foundation of China [11475227, 11175220, 10975146, 11475192]
; Century Program of Chinese Academy of Sciences [Y101020BR0]
; Sino-German CRC 110 "Symmetries and the Emergence of Structure in QCD" project
Lu, QF,Wang, XY,Xie, JJ,et al. Neutral hidden charm pentaquark states P-c(0)(4380) and P-c(0)(4450) in the pi(-)p -> J/psi n reaction[J]. PHYSICAL REVIEW D,2016,93(3):34009.
