New narrow baryons and dibaryons observed in inelastic pp scattering

Journal Article · Fri May 29 00:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56093· OSTI ID:21199127

Tatischeff, B; Willis, N; Comets, M P; Courtat, P; Gacougnolle, R; Le Bornee, Y; Loireleux, E; Reide, F ^[1]; Yonnet, J; Boivin, M ^[2]

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1. Institut de Physique Nucleaire, CNRS/IN2P3, 91406 Orsay Cedex (France)
2. Laboratoire National Saturne, CEA/DSM CNRS/IN2P3, 91191 Gif-sur-Yvette Cedex (France)

Several narrow exotic baryonic states have been recently observed at 1004, 1044, and possibly at 1094 MeV, from the study of pp{yields}p{pi}{sup +}X reaction at different energies (T{sub p}=1520, 1805 and 2100 MeV) and angles from 0 deg. up to 17 deg. (lab.). The small widths: a few MeV, indicate a possible interpretation within multiquark baryons or baryonic resonances. A phenomonological mass formula for two clusters of quarks, predicts masses, quite close to the experimental ones.

• OSTI ID: 21199127
• Journal Information: AIP Conference Proceedings, Vol. 432, Issue 1; Conference: 7. international conference on hadron spectroscopy, Upton, NY (United States), 25-30 Aug 1997; Other Information: DOI: 10.1063/1.56093; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIBARYONS
INCLUSIVE INTERACTIONS
INELASTIC SCATTERING
MASS FORMULAE
MEV RANGE
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLE WIDTHS
PIONS PLUS
PROTON-PROTON INTERACTIONS
PROTONS
QUARKS
RESONANCE PARTICLES
REST MASS