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Title: The NN interaction in a constituent quark model: Baryonium states and protonium level shifts

Abstract

We derive a NN interaction from a constituent quark model constrained by the NN sector to investigate the possible baryonium resonant state X(1835) recently suggested as a possible interpretation of the near-threshold enhancement found in J/{psi}{yields}{gamma}pp by the BES Collaboration. The interaction does not show bound or quasibound states but a {sup 3}P{sub 0} resonance in the I=0 isospin channel. We analyze the shift of the antiprotonium hydrogen energy levels, finding that pp-nn mixing can explain the abnormally big value of the 2{sup 3}P{sub 0} energy shift.

Authors:
;  [1]
  1. Grupo de Fisica Nuclear, IUFFyM, Universidad de Salamanca, E-37008 Salamanca (Spain)
Publication Date:
OSTI Identifier:
20771493
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.73.045214; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BARYONIUM; ENERGY LEVELS; HYDROGEN; ISOSPIN; MIXING; NUCLEON-NUCLEON INTERACTIONS; PROTONIUM; QUARK MODEL; QUASIBOUND STATE; RESONANCE PARTICLES

Citation Formats

Entem, D.R., and Fernandez, F. The NN interaction in a constituent quark model: Baryonium states and protonium level shifts. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.045214.
Entem, D.R., & Fernandez, F. The NN interaction in a constituent quark model: Baryonium states and protonium level shifts. United States. doi:10.1103/PhysRevC.73.045214.
Entem, D.R., and Fernandez, F. Sat . "The NN interaction in a constituent quark model: Baryonium states and protonium level shifts". United States. doi:10.1103/PhysRevC.73.045214.
@article{osti_20771493,
title = {The NN interaction in a constituent quark model: Baryonium states and protonium level shifts},
author = {Entem, D.R. and Fernandez, F.},
abstractNote = {We derive a NN interaction from a constituent quark model constrained by the NN sector to investigate the possible baryonium resonant state X(1835) recently suggested as a possible interpretation of the near-threshold enhancement found in J/{psi}{yields}{gamma}pp by the BES Collaboration. The interaction does not show bound or quasibound states but a {sup 3}P{sub 0} resonance in the I=0 isospin channel. We analyze the shift of the antiprotonium hydrogen energy levels, finding that pp-nn mixing can explain the abnormally big value of the 2{sup 3}P{sub 0} energy shift.},
doi = {10.1103/PhysRevC.73.045214},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 73,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}