Stopped [Delta]-matter source in heavy-ion collisions at 10 GeV/nucleon
Journal Article
·
· Physical Review, C (Nuclear Physics); (United States)
- Institut fuer Theoretische Physik, Universitaet Frankfurt, D-60054 Frankfurt (Germany)
We predict the formation of highly dense baryon-rich resonance matter in Au+Au collisions at the Brookhaven Alternating Gradient Synchrotron (AGS) energies. The final pion yields show observable signs for resonance matter. The [Delta][sub 1232] resonance is predicted to be the dominant source for pions of small transverse momenta. Rescattering effects---consecutive excitation and deexcitation of [Delta]'s---lead to a long apparent lifetime ([gt]10 fm/[ital c]) and rather large volumina (several 100 fm[sup 3]) of the [Delta]-matter state. Heavier baryon resonances prove to be crucial for reaction dynamics and particle production at AGS.
- OSTI ID:
- 6585669
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 51:4; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED-PARTICLE REACTIONS
DELTA BARYONS
DELTA-1232 BARYONS
DYNAMICS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERMIONS
GEV RANGE
GOLD 197 REACTIONS
GOLD 197 TARGET
HADRONS
HEAVY ION REACTIONS
LIFETIME
LINEAR MOMENTUM
MECHANICS
N BARYONS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
RESONANCE
TARGETS
TRANSVERSE MOMENTUM
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
CHARGED-PARTICLE REACTIONS
DELTA BARYONS
DELTA-1232 BARYONS
DYNAMICS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERMIONS
GEV RANGE
GOLD 197 REACTIONS
GOLD 197 TARGET
HADRONS
HEAVY ION REACTIONS
LIFETIME
LINEAR MOMENTUM
MECHANICS
N BARYONS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
RESONANCE
TARGETS
TRANSVERSE MOMENTUM