Effects of flavour-dependent q(q)over-bar annihilation on the mixing angle of the isoscalar octet-singlet and Schwinger
文献类型：期刊论文
| 作者 | Li, DM; Yu, H; Shen, QX; Li, DM , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China. |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2001 |
| 卷号 | 18期号:2页码:184-186 |
| 关键词 | Pseudoscalar Mesons |
| ISSN号 | 0256-307X |
| 英文摘要 | By incorporating the flavour-dependent quark-antiquark annihilation amplitude into the mass-squared matrix describing the mixing of the isoscalar states of a meson nonet, the new version of Schwinger's nonet mass formula, which holds with a high accuracy for the 0(-+), 1(--), 2(++), 2(-+) and 3(--) nonets, is derived and the mixing angle of the isoscalar octet-singlet for these nonets is obtained. In particular, the mixing angle of the isoscalar octet-singlet for the pseudoscalar nonet is determined to take the value of -12.92 degrees, which is in agreement with the value range from -13 degrees to -17 degrees deduced from a rather exhaustive and up-to-date analysis of data. It is also pointed out that the omission of the flavour-dependent q (q) over bar annihilation effect might be a factor resulting in the invalidity of Schwinger's original nonet mass formula for the pseudoscalar nonet. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12817]  |
| 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, DM , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, DM,Yu, H,Shen, QX,et al. Effects of flavour-dependent q(q)over-bar annihilation on the mixing angle of the isoscalar octet-singlet and Schwinger[J]. CHINESE PHYSICS LETTERS,2001,18(2):184-186. |
| APA | Li, DM,Yu, H,Shen, QX,&Li, DM , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China..(2001).Effects of flavour-dependent q(q)over-bar annihilation on the mixing angle of the isoscalar octet-singlet and Schwinger.CHINESE PHYSICS LETTERS,18(2),184-186. |
| MLA | Li, DM,et al."Effects of flavour-dependent q(q)over-bar annihilation on the mixing angle of the isoscalar octet-singlet and Schwinger".CHINESE PHYSICS LETTERS 18.2(2001):184-186. |
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来源：理论物理研究所
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