Effects of [ital N]*(1440) resonance on particle production in heavy-ion collisions at subthreshold energies

Journal Article · Thu Dec 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.R2675· OSTI ID:6939685

Li, B; Ko, C M; Li, G Q ^[1]

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1. Cyclotron Institute and Department of Physics, Texas A M University, College Station, Texas 77843 (United States)

We study quantitatively the effects of the [ital N][sup *](1440) resonance on the production of kaons, antikaons, and antiprotons in heavy-ion collisions at subthreshold energies. It is found that baryon-baryon collisions involving the [ital N][sup *] have minor effects on the production of kaons and antikaons. For the production of antiprotons---considerably different from the previous finding that baryon-baryon collisions involving the [Delta](1232) dominate---we found that collisions involving the [ital N][sup *] are at least equally important as those involving the [Delta]. Medium effects such as the broadened resonance widths and decreased masses of nucleons and antinucleons are also discussed.

• OSTI ID: 6939685
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIBARYONS
ANTIKAONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
DIMENSIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEAVY ION REACTIONS
KAONS
MASS
MATTER
MESONS
N BARYONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE PRODUCTION
PSEUDOSCALAR MESONS
RESONANCE
STRANGE MESONS
STRANGE PARTICLES
WIDTH