Chiral condensates and size of the sigma term
文献类型：期刊论文
| 作者 | Peng GX(彭光雄) ; Peng, GX
|
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 2005 |
| 卷号 | 747期号:1页码:#REF! |
| 关键词 | chiral condensate sigma term in-medium |
| 通讯作者 | Peng, GX (reprint author), MIT, Ctr Theoret Phys, Nucl Sci Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA. |
| 英文摘要 | The in-medium chiral condensate is studied with a new approach which has the advantage of no need for extra assumptions on the current mass derivatives of model parameters. It is shown that the pion-nucleon Sigma term is 9/2 times the average current mass of tight quarks, if quark confinement is linear. Considering both perturbative and non-perturbative interactions, the chiral condensate decreases monotonously with increasing densities, approaching to zero at about 4 fm(-3). (C) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 收录类别 | SCI |
| WOS记录号 | WOS:000225841100005 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225969]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Peng GX,Peng, GX. Chiral condensates and size of the sigma term[J]. NUCLEAR PHYSICS A,2005,747(1):#REF!. |
| APA | 彭光雄,&Peng, GX.(2005).Chiral condensates and size of the sigma term.NUCLEAR PHYSICS A,747(1),#REF!. |
| MLA | 彭光雄,et al."Chiral condensates and size of the sigma term".NUCLEAR PHYSICS A 747.1(2005):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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