Final state interaction effects in near threshold enhancement of the pp mass spectrum in B and J/{psi} decays

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.014004· OSTI ID:20933219

Entem, D R; Fernandez, F ^[1]

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1. Grupo de Fisica Nuclear, IUFFyM, Universidad de Salamanca, E-37008 Salamanca (Spain)

A near threshold enhancement in the pp invariant mass spectrum has been reported by the BELLE, BES, and BABAR collaborations for several B and J/{psi} decays. This enhancement has been interpreted as a narrow baryonium state X(1835). We investigate its nature using a pp interaction derived from a constituent quark model. This interaction does not show any pp bound state but a {sup 3}P{sub 0} resonance. We show that pp final state interaction can reproduce the mass dependence of the pp mass spectrum close to the threshold observed in different B and J/{psi} decays.

• OSTI ID: 20933219
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevD.75.014004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BARYONIUM
BARYONS
BOUND STATE
FINAL-STATE INTERACTIONS
HADRONIC PARTICLE DECAY
J PSI-3097 MESONS
MASS SPECTRA
QUARK MODEL
RESONANCE PARTICLES