Shear viscosity to entropy density ratio in nuclear multifragmentation

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.051601· OSTI ID:21389002

Pal, Subrata ^[1]

---

1. Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005 (India)

Nuclear multifragmentation in intermediate-energy heavy-ion collisions has long been associated with liquid-gas phase transition. We calculate the shear viscosity to entropy density ratio eta/s for an equilibrated system of nucleons and fragments produced in multifragmentation within an extended statistical multifragmentation model. The temperature dependence of eta/s exhibits behavior surprisingly similar to that of H{sub 2}O. In the coexistence phase of fragments and light particles, the ratio eta/s reaches a minimum of depth comparable to that for water in the vicinity of the critical temperature for liquid-gas phase transition. The effects of freeze-out volume and surface symmetry energy on eta/s in multifragmentation are studied.

• OSTI ID: 21389002
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevC.81.051601; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COMPARATIVE EVALUATIONS
CRITICAL TEMPERATURE
DENSITY
ENTROPY
FREEZING OUT
HEAVY ION REACTIONS
LIQUIDS
NUCLEAR FRAGMENTATION
NUCLEONS
PHASE TRANSFORMATIONS
SURFACES
SYMMETRY
TEMPERATURE DEPENDENCE
VISCOSITY
WATER
BARYONS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FLUIDS
HADRONS
HYDROGEN COMPOUNDS
NUCLEAR REACTIONS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SEPARATION PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE