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| 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) | |
| 2012 | |
| Source Publication | PHYSICAL REVIEW C
 |
| ISSN | 0556-2813 |
| Volume | 85Issue:2 |
| Abstract | 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. |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000300662900003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13179 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation 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). |
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| File Name/Size | DocType | Version | Access | License | ||
| Hard-photon flow and（822KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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