Distribution amplitudes of light-quark mesons from lattice QCD
文献类型：期刊论文
| 作者 | Segovia, J; Chang, L; Cloet, IC; Roberts, CD; Schmidt, SM; Zong, HS |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2014 |
| 卷号 | 731期号:-页码:13-18 |
| 关键词 | PION FORM-FACTOR QUANTUM CHROMODYNAMICS EXCLUSIVE PROCESSES ASYMPTOTIC-BEHAVIOR GAUGE-THEORIES FACTORIZATION DECAYS EXTRACTION EQUATIONS NUCLEON |
| ISSN号 | 0370-2693 |
| 通讯作者 | Roberts, CD (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. |
| 英文摘要 | We exploit a method introduced recently to determine parton distribution amplitudes (PDAs) from minimal information in order to obtain light-quark pseudoscalar and vector meson PDAs from the limited number of moments produced by numerical simulations of lattice-regularised QCD. Within errors, the PDAs of pseudoscalar and vector mesons constituted from the same valence quarks are identical; they are concave functions, whose dilation expresses the strength of dynamical chiral symmetry breaking; and SU(3)-flavour symmetry is broken nonperturbatively at the level of 10%. Notably, the appearance of precision in the lattice moments is misleading. The moments also exhibit material dependence on lattice volume, especially for the pion. Improvements need therefore be made before an accurate, unified picture of the light-front structure of light-quark pseudoscalar and vector mesons is revealed. (C) 2014 Published by Elsevier BAT. This is an open access article under the CC BY license (http://creativecommons.orgilicenses/by/3.01). |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | University of Adelaide; Australian Research Council [FL0992247]; Forschungszentrum Julich GmbH; Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; GAUSTEQ (Germany); GAUSTEQ (U.S. Nuclear Theory Exchange Program for QCD Studies of Hadrons and Nuclei) [DE-SC0006758]; National Natural Science Foundation of China [11275097, 10935001, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] |
| 原文出处 | http://dx.doi.org/10.1016/j.physletb.2014.02.006 |
| 语种 | 英语 |
| WOS记录号 | WOS:000334094500003 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15790]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Segovia, J,Chang, L,Cloet, IC,et al. Distribution amplitudes of light-quark mesons from lattice QCD[J]. PHYSICS LETTERS B,2014,731(-):13-18. |
| APA | Segovia, J,Chang, L,Cloet, IC,Roberts, CD,Schmidt, SM,&Zong, HS.(2014).Distribution amplitudes of light-quark mesons from lattice QCD.PHYSICS LETTERS B,731(-),13-18. |
| MLA | Segovia, J,et al."Distribution amplitudes of light-quark mesons from lattice QCD".PHYSICS LETTERS B 731.-(2014):13-18. |
入库方式： OAI收割
来源：理论物理研究所
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