Effects of the HMT on Nucleon Collective Flows within BUU Transport Model
Fang Zhang**
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000
Abstract ：Within the framework of a semiclassical Boltzmann–Uehling–Uhlenbeck (BUU) transport model, the high momentum tail (HMT) effects of nucleon momentum distribution in the nucleus on the nucleon collective flows are studied in semicentral Au+Au collisions. The HMT due to the isospin-dependent short-range correlations causes a smaller value of the collective flows. We find that the HMT effects on the nucleon collective flows are remarkable at beam energy of 300 MeV/nucleon and become weak as the incident beam energy increases. The results indicate that for the collective flow studies at intermediate energies, the HMT of nucleon momentum distribution in nucleus should be taken into account in transport models.
收稿日期: 2015-07-26
出版日期: 2016-01-29
:
25.70.-z
(Low and intermediate energy heavy-ion reactions)
21.65.Cd
(Asymmetric matter, neutron matter)
25.75.Ld
(Collective flow)
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2016, Vol. 33 
