One-pion-exchange final-state-interaction and the pbar p near threshold enhancement in J/psi -> gamma pbar p decays

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dc.creatorZou, B. S.
dc.creatorChiang, H. C.
dc.date2003-09-24
dc.date.accessioned2026-07-07T10:28:57Z
dc.date.available2026-07-07T10:28:57Z
dc.descriptionFor the Nbar N system, the one-pion-exchange (OPE) interaction gives the largest attractive force for Nbar N with isospin I=0 and spin S=0, while a near threshold enhancement was observed for pbar p with I=0 and S=0 in J/psi -> gamma pbar p decays. With a K-matrix approach, we find that the OPE final-state-interaction (FSI) makes an important contribution to the near-threshold enhancement in the pbar p mass spectrum in J/psi -> gamma pbar p decays.
dc.description8 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/hep-ph/0309273
dc.identifierhttp://arxiv.org/abs/hep-ph/0309273
dc.identifierPhys.Rev.D69:034004,2004
dc.identifierdoi:10.1103/PhysRevD.69.034004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177627
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOne-pion-exchange final-state-interaction and the pbar p near threshold enhancement in J/psi -> gamma pbar p decays
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