Thermal mass spectra of vector and axial-vector mesons in predictive soft-wall AdS/QCD model
文献类型：期刊论文
| 作者 | Wu, YL
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2012 |
| 期号 | 4页码:144 |
| 关键词 | LIGHT-FRONT HOLOGRAPHY QCD |
| ISSN号 | 1029-8479 |
| 通讯作者 | Cui, LX (reprint author), Chinese Acad Sci, Inst Theoret Phys, SKLTP, KITPC, Beijing 100190, Peoples R China. |
| 英文摘要 | We extend the predictive soft-wall AdS/QCD model to a thermodynamic model by considering the black hole metric. A modified bulk vacuum expectation value and a modified coefficient for the quartic term in the bulk scalar potential are introduced to obtain a smooth dilaton solution for computing the spectral functions of the vector and axial-vector mesons. It is demonstrated that the peaks appearing in the spectral functions characterize the thermal mass spectra of vector and axial-vector mesons, where the location of the peak moves to a lower value and the width of the peak becomes wider when increasing the temperature. We observe that the peak disappears completely at the critical temperature around T-c = 200 MeV, which implies the deconfinement of quark and the restoration of chiral symmetry breaking. A numerical study by fitting the spectral function in terms of the Breit-Wigner form has been made to show how the peak dissolves quantitatively when the temperature is increased to the critical point. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China (NSFC) [10821504, 10975170]; Chinese Academy of Science |
| 原文出处 | http://dx.doi.org/10.1007/JHEP04(2012)144 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304148100070 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15123]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Wu, YL. Thermal mass spectra of vector and axial-vector mesons in predictive soft-wall AdS/QCD model[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(4):144. |
| APA | Wu, YL.(2012).Thermal mass spectra of vector and axial-vector mesons in predictive soft-wall AdS/QCD model.JOURNAL OF HIGH ENERGY PHYSICS(4),144. |
| MLA | Wu, YL."Thermal mass spectra of vector and axial-vector mesons in predictive soft-wall AdS/QCD model".JOURNAL OF HIGH ENERGY PHYSICS .4(2012):144. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。