Finite size vertex correction to the strong decay of eta(c) and chi(c) states and a determination of alpha(s)(m(c))
文献类型：期刊论文
| 作者 | Ping, RG; Jiang, HQ; Zou, BS ; Ping, RG , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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| 刊名 | CHINESE PHYSICS LETTERS
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| 出版日期 | 2002 |
| 卷号 | 19期号:2页码:194-196 |
| 关键词 | Heavy |
| ISSN号 | 0256-307X |
| 英文摘要 | We calculate the correction to the two-gluon decay width due to the finite extension of the vertex function. We obtain the corrected factor to the zero-range vertex gamma = 1.32, gamma = 1.45, gamma = 1.26 for eta(c),chi(c0), and chi(c2), respectively. With the decay width Gamma(eta(c) --> 2g) we extract the value alpha(s)(m(c)) = 0.28 +/- 0.05 which agrees with that calculated from the same correction to the process Gamma(J/Psi --> 3g). This correction to the process Gamma(eta(c) --> 2g) is not as large as that to the process Gamma(J/Psi --> 3g). |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000173834400016 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13604]  |
| 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 | Ping, RG , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ping, RG,Jiang, HQ,Zou, BS,et al. Finite size vertex correction to the strong decay of eta(c) and chi(c) states and a determination of alpha(s)(m(c))[J]. CHINESE PHYSICS LETTERS,2002,19(2):194-196. |
| APA | Ping, RG,Jiang, HQ,Zou, BS,&Ping, RG , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2002).Finite size vertex correction to the strong decay of eta(c) and chi(c) states and a determination of alpha(s)(m(c)).CHINESE PHYSICS LETTERS,19(2),194-196. |
| MLA | Ping, RG,et al."Finite size vertex correction to the strong decay of eta(c) and chi(c) states and a determination of alpha(s)(m(c))".CHINESE PHYSICS LETTERS 19.2(2002):194-196. |
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来源：理论物理研究所
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