Resummation of QCD corrections to the eta(c) decay rate
文献类型：期刊论文
| 作者 | Bodwin, GT; Chen, YQ ; Bodwin, GT , Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2001 |
| 卷号 | 64期号:11页码:- |
| 关键词 | Quantum Chromodynamics Quarkonium Annihilation Renormalons Ambiguities |
| ISSN号 | 0556-2821 |
| 英文摘要 | We examine the ratio of the decay rate of the eta, into light hadrons to the decay rate into photons and find that most of the large next-to-leading-order (NLO) correction is associated with running of the strong coupling alpha We resum Such contributions by analyzing final-state chains of vacuum-polarization bubbles. We show that the nonperturbative parts of the bubble chains can be absorbed into a color-octet matrix element, once one has used contour deformations, of the phase-space integrals to cancel certain contributions. We argue that these contributions are incompatible with the uncertainty principle, We also argue that perturbation theory is reliable only if one carries out the phase-space integrations before the perturbation summation. Our results are in good agreement with experiment and differ considerably from those that one obtains by applying the scale-setting method of Brodsky. Lepage. and Mackenzie to the NLO result. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000172450600035 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13638]  |
| 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 | Bodwin, GT , Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. |
| 推荐引用方式 GB/T 7714 | Bodwin, GT,Chen, YQ,Bodwin, GT , Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA.. Resummation of QCD corrections to the eta(c) decay rate[J]. PHYSICAL REVIEW D,2001,64(11):-. |
| APA | Bodwin, GT,Chen, YQ,&Bodwin, GT , Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA..(2001).Resummation of QCD corrections to the eta(c) decay rate.PHYSICAL REVIEW D,64(11),-. |
| MLA | Bodwin, GT,et al."Resummation of QCD corrections to the eta(c) decay rate".PHYSICAL REVIEW D 64.11(2001):-. |
入库方式： OAI收割
来源：理论物理研究所
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