TY - JOUR
T1 - Interaction of slow J/ψ and ψ′ with nucleons
AU - Sibirtsev, A.
AU - Voloshin, M. B.
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2005/4/1
Y1 - 2005/4/1
N2 - The interaction of the charmonium resonances J/ψ and ψ′ with nucleons at low energies is considered using the multipole expansion and low-energy theorems in QCD. A lower bound is established for the relevant gluonic operator average over the nucleon. As a result we find the discussed interaction to be significantly stronger than previously estimated in the literature. In particular we conclude that the cross section of the J/ψ - nucleon elastic scattering at the threshold is very likely to exceed 17 mb and that existence of bound states of the J/ψ in light nuclei is possible. For the ψ′ resonance we estimate even larger elastic scattering cross section and also a very large cross section of the process ψ′ + N → ψ + N giving rise to the decay width of tens of MeV for the ψ′ resonance in heavy nuclei.
AB - The interaction of the charmonium resonances J/ψ and ψ′ with nucleons at low energies is considered using the multipole expansion and low-energy theorems in QCD. A lower bound is established for the relevant gluonic operator average over the nucleon. As a result we find the discussed interaction to be significantly stronger than previously estimated in the literature. In particular we conclude that the cross section of the J/ψ - nucleon elastic scattering at the threshold is very likely to exceed 17 mb and that existence of bound states of the J/ψ in light nuclei is possible. For the ψ′ resonance we estimate even larger elastic scattering cross section and also a very large cross section of the process ψ′ + N → ψ + N giving rise to the decay width of tens of MeV for the ψ′ resonance in heavy nuclei.
UR - http://www.scopus.com/inward/record.url?scp=18544385630&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18544385630&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.71.076005
DO - 10.1103/PhysRevD.71.076005
M3 - Article
AN - SCOPUS:18544385630
VL - 71
SP - 1
EP - 7
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 7
M1 - 076005
ER -