Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry
文献类型：期刊论文
| 作者 | Zhang, R6,7; Chen, JW; Jin, LC; Lin, HW; Schafer, A; Sun, P; Yang, YB ; Zhang, JH; Zhao, Y5
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| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2019 |
| 卷号 | 939页码:429-446 |
| ISSN号 | 0550-3213 |
| 关键词 | EXCLUSIVE PROCESSES PARTON FACTORIZATION DECAYS |
| DOI | 10.1016/j.nuclphysb.2018.12.020 |
| 英文摘要 | We present the first lattice-QCD calculation of the kaon distribution amplitude using the large-momentum effective theory (LaMET) approach. The momentum-smearing technique has been implemented to improve signals at large meson momenta. We subtract the power divergence due to Wilson line to high precision using multiple lattice spacings. The kaon structure clearly shows an asymmetry of the distribution amplitude around x = 1/2, a clear sign of its skewness. Our result also prefers a broader distribution than the asymptotic form. We also study the leading SU(3) flavor symmetry breaking relations for the pion, kaon and eta meson distribution amplitudes, and the results are consistent with the prediction from chiral perturbation theory. (C) 2018 The Author(s). Published by Elsevier B.V. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23499]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA 2.Univ Connecticut, Dept Phys, Storrs, CT 06269 USA 3.Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA 4.Michigan State Univ, Dept Computat Math, E Lansing, MI 48824 USA 5.Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany 6.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA 7.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 8.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 9.Natl Taiwan Univ, Dept Phys, Ctr Theoret Phys, Taipei 106, Taiwan 10.Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 106, Taiwan |
| 推荐引用方式 GB/T 7714 | Zhang, R,Chen, JW,Jin, LC,et al. Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry[J]. NUCLEAR PHYSICS B,2019,939:429-446. |
| APA | Zhang, R.,Chen, JW.,Jin, LC.,Lin, HW.,Schafer, A.,...&Zhao, Y.(2019).Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry.NUCLEAR PHYSICS B,939,429-446. |
| MLA | Zhang, R,et al."Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry".NUCLEAR PHYSICS B 939(2019):429-446. |
入库方式： OAI收割
来源：理论物理研究所
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