ITP OpenIR  > SCI期刊论文
Zhang, R1,2; Chen, JW; Jin, LC; Lin, HW; Schafer, A; Sun, P; Yang, YB; Zhang, JH; Zhao, Y9
Kaon distribution amplitude from lattice QCD and the flavor SU(3) symmetry
Source PublicationNUCLEAR PHYSICS B
Language英语
KeywordEXCLUSIVE PROCESSES PARTON FACTORIZATION DECAYS
AbstractWe 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.
2019
ISSN0550-3213
Volume939Pages:429-446
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1016/j.nuclphysb.2018.12.020
Indexed BySCIE
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23499
CollectionSCI期刊论文
Affiliation1.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA
2.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Natl Taiwan Univ, Dept Phys, Ctr Theoret Phys, Taipei 106, Taiwan
5.Natl Taiwan Univ, Leung Ctr Cosmol & Particle Astrophys, 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
Recommended Citation
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.
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