Effect of the chiral phase transition on axion mass and self-coupling
文献类型：期刊论文
| 作者 | Lu, Zhen-Yan; Ruggieri, Marco2 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2019 |
| 卷号 | 100期号:1页码:14013 |
| 关键词 | CP CONSERVATION QCD |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.100.014013 |
| 英文摘要 | We compute the effect of the chiral phase transition of QCD on the axion mass and self-coupling; the coupling of the axion to the quarks at finite temperature is described within the Nambu-Jona-Lasinio model. We find that the axion mass decreases with temperature, following the response of the topological susceptibility, in agreement with previous results obtained within chiral perturbation theory at low and intermediate temperatures. As expected, the comparison with lattice data shows that chiral perturbation theory fails to reproduce the topological susceptibility around the chiral critical temperature, while the Nambu-Jona-Lasinio model offers a better qualitative agreement with these data, hence a more reliable estimate of the temperature dependence of the axion mass in the presence of a hot quark medium. We complete our study by computing the temperature dependence of the self-coupling of the axion, finding that this coupling decreases at and above the phase transition. The model used in our work as well as the results presented here pave the way to the computation of the in-medium effects of hot and/or dense quark-gluon plasma on the axion properties. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27224]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Zhen-Yan,Ruggieri, Marco. Effect of the chiral phase transition on axion mass and self-coupling[J]. PHYSICAL REVIEW D,2019,100(1):14013. |
| APA | Lu, Zhen-Yan,&Ruggieri, Marco.(2019).Effect of the chiral phase transition on axion mass and self-coupling.PHYSICAL REVIEW D,100(1),14013. |
| MLA | Lu, Zhen-Yan,et al."Effect of the chiral phase transition on axion mass and self-coupling".PHYSICAL REVIEW D 100.1(2019):14013. |
入库方式： OAI收割
来源：理论物理研究所
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