Isospin transport at Fermi energies

Journal Article · Thu Dec 15 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.064620· OSTI ID:20771129

Baran, V ^[1]; Colonna, M; Di Toro, M ^[1]; Zielinska-Pfabe, M ^[2]; Wolter, H H ^[3]

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1. Laboratori Nazionali del Sud, Via S. Sofia 44, and Physics-Astronomy Department, University of Catania, I-95123 Catania (Italy)
2. Smith College, Northampton, Massachusetts 01063 (United States)
3. Physics Department, University of Munich, D-85748 Garching (Germany)

In this paper we investigate isospin transport mechanisms in semiperipheral collisions at Fermi energies. The effects of the formation of a low density region (neck) between the two reaction partners and of preequilibrium emission on the dynamics of isospin equilibration are carefully analyzed. We clearly identify two main contributions to the isospin transport: isospin diffusion due to the N/Z ratio and isospin drift due to the density gradients. Both effects are sensitive to the symmetry part of the nuclear equation of state (EOS), in particular to the value and slope around saturation density.

• OSTI ID: 20771129
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DENSITY
DIFFUSION
EMISSION
EQUATIONS OF STATE
ISOSPIN
NUCLEAR REACTIONS
PERIPHERAL COLLISIONS
SYMMETRY