https://doi.org/10.1140/epja/i2016-16281-0
Regular Article - Theoretical Physics
Shear-viscosity-to-entropy-density ratio and phase transition in multifragmentation of quasiprojectile
1
The Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, 100875, Beijing, China
2
Beijing Radiation Center, 100875, Beijing, China
3
Texas Advanced Computing Center University of Texas at Austin, 78758, Austin, TX, USA
4
Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, 730000, Lanzhou, China
* e-mail: fszhang@bnu.edu.cn
Received:
23
June
2016
Accepted:
2
August
2016
Published online:
14
September
2016
Heavy-ion collisions at relativistic energy are studied by the isospin-dependent quantum molecular dynamics model in the company of the GEMINI model. The present study mainly focuses on the liquid-gas phase transition in nuclear matter. We calculate the shear-viscosity-to-entropy-density ratio 
, 
and the multiplicity of intermediate-mass fragment (
) in finite-size nuclear sources. At excitation energy 8 MeV a minimum of is found in the coexistence phase of intermediate-mass fragments and light particles. At similar excitation energy a maximum of the is also observed at the same density condition which is an indication of the liquid-gas phase transition.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
