Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry

doi:10.1016/j.nuclphysb.2018.12.020

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry
	Zhang, R 2,3; Chen, JW ; Jin, LC ; Lin, HW ; Schafer, A ; Sun, P ; Yang, YB ; Zhang, JH ; Zhao, Y 9
刊名	NUCLEAR PHYSICS B
	2019
卷号	939 页码:429-446
关键词	EXCLUSIVE PROCESSES PARTON FACTORIZATION DECAYS
ISSN号	0550-3213
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
内容类型	期刊论文
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.Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, Taipei 106, Taiwan 2.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA 3.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.Natl Taiwan Univ, Dept Phys, Ctr Theoret Phys, Taipei 106, Taiwan 6.Univ Connecticut, Dept Phys, Storrs, CT 06269 USA 7.Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA 8.Michigan State Univ, Dept Computat Math, E Lansing, MI 48824 USA 9.Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany 10.MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
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.