Distribution amplitudes of radially-excited pi and K mesons
文献类型：期刊论文
| 作者 | Li, BL; Chang, L; Gao, F; Roberts, CD; Schmidt, SM; Zong, HS; Li, BL (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2016 |
| 卷号 | 93期号:11页码:114033 |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.114033 |
| 英文摘要 | A symmetry-preserving truncation of the two-body bound state problem in relativistic quantum field theory is used to compute the leading-twist parton distribution amplitudes (PDAs) for the first radial excitations of the pi and K mesons. In common with ground states in these channels, the PDAs are found to be dilated with respect to the relevant conformal-limit form and skewed toward the heavier valence quark in asymmetric systems. In addition, the PDAs of radially excited pseudoscalar mesons are not positive definite, owing to the fact that dynamical chiral symmetry breaking (DCSB) forces the leptonic decay constant of such states to vanish in the chiral limit. These results highlight that DCSB is expressed visibly in every pseudoscalar meson constituted from light quarks. Hence, so long as its impact is empirically evident in the pseudoscalar members of a given spectrum level, it is unlikely that chiral symmetry is restored in any of the hadrons that populate this level. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21609]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, BL (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, BL,Chang, L,Gao, F,et al. Distribution amplitudes of radially-excited pi and K mesons[J]. PHYSICAL REVIEW D,2016,93(11):114033. |
| APA | Li, BL.,Chang, L.,Gao, F.,Roberts, CD.,Schmidt, SM.,...&Li, BL .(2016).Distribution amplitudes of radially-excited pi and K mesons.PHYSICAL REVIEW D,93(11),114033. |
| MLA | Li, BL,et al."Distribution amplitudes of radially-excited pi and K mesons".PHYSICAL REVIEW D 93.11(2016):114033. |
入库方式： OAI收割
来源：理论物理研究所
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