Experimental balance energies and isospin-dependent nucleon-nucleon cross-sections

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.024610· OSTI ID:21419443

Kumar, Sanjeev; Rajni,; Kumar, Suneel ^[1]

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1. School of Physics and Materials Science, Thapar University, Patiala 147004, Punjab (India)

The effect of different isospin-dependent cross-sections on directed flow is studied for a variety of systems (for which experimental balance energies are available) using an isospin-dependent quantum molecular dynamic (IQMD) model. We show that balance energies are sensitive toward isospin-dependent cross sections for light systems, while nearly no effect exists for heavier nuclei. A reduced cross-section {sigma}=0.9{sigma}{sub NN} with stiff equation of state is able to explain experimental balance energies in most of systems. A power law behavior is also given for the mass dependence of balance energy, which also follows the N/Z dependence.

• OSTI ID: 21419443
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON-BARYON INTERACTIONS
BARYONS
CALCULATION METHODS
CROSS SECTIONS
ELEMENTARY PARTICLES
EQUATIONS
EQUATIONS OF STATE
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY NUCLEI
INTERACTIONS
ISOSPIN
MASS
MOLECULAR DYNAMICS METHOD
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES