/ital J///psi/ enhancement by quark-gluon-plasma formation

Journal Article · Mon Jun 19 04:00:00 EDT 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.2921· OSTI ID:6138484

Milana, J

A new mechanism for producing /ital J///psi/'s in a quark-gluon plasma isexplored. A /ital cc/bar // pair created in the hard part of a hadronic collisionneed not be initially formed as a color singlet to result in a charmonium stateif a plasma is also present. Instead, a color-octet pair can subsequentlyscatter off of the plasma to lose its color. It is shown that if a hot plasmais formed in a relativistic heavy-ion collider, then a substantial enhancementof the /ital J///psi/ production rate might be expected from this mechanism.Thus this production mechanism acts to counteract the decrease in cross sectionarising from Debye screening of the color-binding force in the plasma.

• Research Organization: Department of Physics, Oregon State University, Corvallis, Oregon 97331(US)
• OSTI ID: 6138484
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:25; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645201 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSON-EXCHANGE MODELS
BOSONS
CHARGED-PARTICLE REACTIONS
CHARMONIUM
COLOR MODEL
COMPOSITE MODELS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GLUONS
HADRONS
HEAVY ION REACTIONS
J PSI-3097 MESONS
MATHEMATICAL MODELS
MATTER
MESON OCTETS
MESONS
MULTIPLETS
NUCLEAR REACTIONS
PARTICLE MODELS
PARTICLE MULTIPLETS
PARTICLE PRODUCTION
PERIPHERAL MODELS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUARK MATTER
QUARK MODEL
QUARKONIUM
RELATIVISTIC RANGE
THERMODYNAMIC PROPERTIES
VECTOR MESONS