Charmonium dissociation in matter: perspectives from CERN to JLab

Journal Article · Tue Jul 27 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3479346· OSTI ID:21410765

Sibirtsev, A ^[1]

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1. Helmholtz-Institut fuer Strahlen-und Kernphysik (Theorie), Universitaet Bonn, D-53115 Bonn (Germany) and Excited Baryon Analysis Center (EBAC), Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States) and Institut fuer Kernphysik and Juelich Center for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany)

The J/{Psi}-meson dissociation in nuclear matter remains one of the most surprising problems in physics. In 2000 the NA50 Collaboration at CERN reported anomalous results on J/{Psi} absorption that was considered as evidence of Quark-Gluon Plasma formation. On the other hand, there may be other mechanisms which produce an increase in J/{Psi} absorption in a hot dense medium due to the modification of the charm mesons. Our detailed calculations were one of the first indications that the CERN data can indeed be well explained by a mechanism different from QGP formation. For further clarification we proposed to study the modification of charm in nuclei through antiproton annihilation, which is now part of the PANDA project at FAIR GSI. The experiment on charmonium dissociation in nuclei is under discussion at JLab as part of its 12 GeV upgrade.

• OSTI ID: 21410765
• Journal Information: AIP Conference Proceedings, Vol. 1261, Issue 1; Conference: Festschrift in honor of Tony Thomas 60. birthday: Achievements and new directions in subatomic physics, Adelaide (Australia), 15-19 Feb 2010; Other Information: DOI: 10.1063/1.3479346; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABSORPTION
ANNIHILATION
ANTIPROTONS
CEBAF ACCELERATOR
CERN
DISSOCIATION
GEV RANGE 10-100
J PSI-3097 MESONS
MODIFICATIONS
NUCLEAR MATTER
NUCLEON-NUCLEON INTERACTIONS
PARTICLE PRODUCTION
QUARK MATTER
WEAK HADRONIC DECAY
ACCELERATORS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARMONIUM
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INTERNATIONAL ORGANIZATIONS
LINEAR ACCELERATORS
MATTER
MESONS
NUCLEI
NUCLEONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PROTONS
QUARKONIUM
SORPTION
VECTOR MESONS
WEAK PARTICLE DECAY