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Pion to photon transition form factors with basis light-front quantization

文献类型：期刊论文

作者Mondal, Chandan1,2; Nair, Sreeraj1,2; Jia, Shaoyang3,4; Zhao, Xingbo1,2; Vary, James P.3
刊名PHYSICAL REVIEW D
出版日期2021-11-22
卷号104期号:9页码:11
ISSN号2470-0010
DOI10.1103/PhysRevD.104.094034
通讯作者Mondal, Chandan(mondal@impcas.ac.cn) ; Nair, Sreeraj(sreeraj@impcas.ac.cn) ; Jia, Shaoyang(syjia@anl.gov) ; Zhao, Xingbo(xbzhao@impcas.ac.cn) ; Vary, James P.(jvary@iastate.edu)
英文摘要We obtain the distribution amplitude (DA) of the pion from its light-front wave functions in the basis light-front quantization framework. This light-front wave function of the pion is given by the lowest eigenvector of a light-front effective Hamiltonian consisting a three-dimensional confinement potential and the color-singlet Nambu-Jona-Lasinion interaction both between the constituent quark and antiquark. The quantum chromodynamics evolution of the DA is subsequently given by the perturbative EfremovRadyushkin-Brodsky-Lepage evolution equation. Based on this DA, we then evaluate the singly and doubly virtual transition form factors in the spacelike region for pi 0 - gamma*gamma and pi 0 - gamma*gamma* processes using the hard-scattering formalism. Our prediction for the pion-photon transition form factor agrees well with data reported by the Belle Collaboration. However, in the large Q2 region it deviates from the rapid growth reported by the BABAR Collaboration. Meanwhile, our result on the pi 0 - gamma* gamma* transition form factor is also consistent with other theoretical approaches and agrees with the scaling behavior predicted by perturbative quantum chromodynamics.
WOS关键词JONA-LASINIO MODEL ; ASYMPTOTIC-BEHAVIOR ; DISTRIBUTION AMPLITUDE ; PARTON DISTRIBUTIONS ; EXCLUSIVE PROCESSES ; NAMBU ; MESONS ; QCD ; FACTORIZATION ; MOMENT
资助项目Institute of Modern Physics, Chinese Academy of Sciences[E129952YR0] ; Chinese Academy of Sciences Presidents International Fellowship Initiative[2021PM0023] ; Chinese Academy of Sciences Presidents International Fellowship Initiative[2021PM0021] ; Institute of Modern Physics, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDB-SLY-7020] ; Natural Science Foundation of Gansu Province, China[20JR10RA067] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB34000000] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics[DE-AC02-06CH11357] ; Department of Energy[DE-FG0287ER40371] ; Department of Energy[DE-SC0018223]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000721580000003
出版者AMER PHYSICAL SOC
资助机构Institute of Modern Physics, Chinese Academy of Sciences ; Chinese Academy of Sciences Presidents International Fellowship Initiative ; Institute of Modern Physics, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Natural Science Foundation of Gansu Province, China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics ; Department of Energy
源URL[http://119.78.100.186/handle/113462/140042]  
专题中国科学院近代物理研究所
通讯作者Mondal, Chandan; Nair, Sreeraj; Jia, Shaoyang; Zhao, Xingbo; Vary, James P.
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
3.Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
4.Argonne Natl Lab, Phys Div, 9700 S Cass Ave, Argonne, IL 60439 USA
推荐引用方式
GB/T 7714		 Mondal, Chandan,Nair, Sreeraj,Jia, Shaoyang,et al. Pion to photon transition form factors with basis light-front quantization[J]. PHYSICAL REVIEW D,2021,104(9):11.
APA Mondal, Chandan,Nair, Sreeraj,Jia, Shaoyang,Zhao, Xingbo,&Vary, James P..(2021).Pion to photon transition form factors with basis light-front quantization.PHYSICAL REVIEW D,104(9),11.
MLA Mondal, Chandan,et al."Pion to photon transition form factors with basis light-front quantization".PHYSICAL REVIEW D 104.9(2021):11.

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来源：近代物理研究所

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