Hard-photon flow and photon-photon correlation in intermediate-energy heavy-ion collisions

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Hard-photon flow and photon-photon correlation in intermediate-energy heavy-ion collisions
	Ma, YG(马余刚) ; Liu, GH(刘桂华) ; Cai, XZ(蔡翔舟) ; Fang, DQ(方德清) ; Guo, W(郭威) ; Shen, WQ(沈文庆) ; Tian, WD(田文栋) ; Wang, HW(王宏伟)
刊名	PHYSICAL REVIEW C
	2012
卷号	85 期号:2
ISSN号	0556-2813
英文摘要	Hard photons emitted from energetic heavy-ion collisions are very interesting since they do not experience nuclear interaction, and therefore they are useful to explore properties of nuclear matter. We investigated hard-photon production and its properties in intermediate-energy heavy-ion collisions with the help of the Blotzmann-Uehling-Ulenbeck model. Two components of hard photons are discussed: direct and thermal. The positive directed flow parameter and negative elliptic flow parameter of direct photons are demonstrated and they are anticorrelated to the flows of free protons. The dependencies of hard-photon production and anisotropic parameters on impact parameter, beam energy, nuclear equation of state, and symmetry energy are also discussed. Furthermore, we investigated the two-photon momentum correlation function, from which the space-time structure information of the photon source could be extracted, as well as the two-photon azimuthal correlation, which could provide another good method to determine the elliptic flow parameter v(2) of direct hard photons.
语种	英语
WOS记录号	WOS:000300662900003
公开日期	2013-12-05
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/13179]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Ma, YG,Liu, GH,Cai, XZ,et al. Hard-photon flow and photon-photon correlation in intermediate-energy heavy-ion collisions[J]. PHYSICAL REVIEW C,2012,85(2).
APA	Ma, YG.,Liu, GH.,Cai, XZ.,Fang, DQ.,Guo, W.,...&Wang, HW.(2012).Hard-photon flow and photon-photon correlation in intermediate-energy heavy-ion collisions.PHYSICAL REVIEW C,85(2).
MLA	Ma, YG,et al."Hard-photon flow and photon-photon correlation in intermediate-energy heavy-ion collisions".PHYSICAL REVIEW C 85.2(2012).