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Leading-twist distribution amplitudes of scalar and vector mesons
Li, BL; Chang, L; Ding, M; Roberts, CD; Zong, HS; Li, BL (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
2016
发表期刊PHYSICAL REVIEW D
卷号94期号:9页码:94014
文章类型Article
摘要A symmetry-preserving truncation of the two-body light-quark bound-state problem in relativistic quantum field theory is used to calculate the leading-twist parton distribution amplitudes (PDAs) of scalar systems, both ground-state and radial excitations, and the radial excitations of vector mesons. Owing to the fact that the scale-independent leptonic decay constant of a scalar meson constituted from equal-mass valence constituents vanishes, it is found that the PDA of a given scalar system possesses one more zero than that of an analogous vector meson. Consequently, whereas the mean light-front relative momentum of the valence constituents within a vector meson is zero, that within a scalar meson is large, an outcome which hints at a greater role for light-front angular momentum in systems classified as P-wave in quantum mechanical models. Values for the scale-dependent decay constants of ground-state scalar and vector systems are a by-product of this analysis, and they turn out to be roughly equal, viz. similar or equal to 0.2 GeV at an hadronic scale. In addition, it is confirmed that the dilation characterizing ground-state PDAs is manifest in the PDAs of radial excitations too. The impact of SU(3)-flavor symmetry breaking is also considered. When compared with pseudoscalar states, it is a little stronger in scalar systems, but the size is nevertheless determined by the flavor dependence of dynamical chiral symmetry breaking and the PDAs are still skewed toward the heavier valence quark in asymmetric systems.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program
DOIhttp://dx.doi.org/10.1103/PhysRevD.94.094014
关键词[WOS]QUANTUM CHROMODYNAMICS ; EXCLUSIVE PROCESSES ; BOUND-STATES ; FORM-FACTORS ; QCD ; CONFINEMENT ; DECAYS ; FACTORIZATION ; F(0)(980) ; EQUATIONS
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357] ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program ; Chinese Ministry of Education, under the International Distinguished Professor program
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21482
专题理论物理所SCI论文
通讯作者Li, BL (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
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Li, BL,Chang, L,Ding, M,et al. Leading-twist distribution amplitudes of scalar and vector mesons[J]. PHYSICAL REVIEW D,2016,94(9):94014.
APA Li, BL,Chang, L,Ding, M,Roberts, CD,Zong, HS,&Li, BL .(2016).Leading-twist distribution amplitudes of scalar and vector mesons.PHYSICAL REVIEW D,94(9),94014.
MLA Li, BL,et al."Leading-twist distribution amplitudes of scalar and vector mesons".PHYSICAL REVIEW D 94.9(2016):94014.
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