Revealing pion and kaon structure via generalised parton distributions

作     者：K.Raya 崔钫 常雷 J.M.Morgado C.D.Roberts J.Rodríguez-Quintero K.Raya;Z-F.Cui;L.Chang;J.M.Morgado;C.D.Roberts;J.Rodríguez-Quintero

作者机构：School of PhysicsNankai UniversityTianjin 300071China Departamento de Física Teórica y del CosmosUniversidad de GranadaE-18071GranadaSpain Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de MéxicoApartado Postal 70-543CDMX 04510México School of PhysicsNanjing UniversityNanjingJiangsu 210093China Institute for Nonperturbative PhysicsNanjing UniversityNanjingJiangsu 210093China Department of Integrated Sciences and Center for Advanced Studies in PhysicsMathematics and ComputationUniversity of HuelvaE-21071 HuelvaSpain 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第1期

页      面：80-101页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by National Natural Science Foundation of China(12135007,11805097) Jiangsu Provincial Natural Science Foundation of China(BK20180323) Spanish Ministry of Science and Innovation(MICINN)(PID2019-107844GB-C22) Junta de Andalucía(P18-FR-5057,UHU-1264517) University of Huelva(EPIT-2019) 

主　　题：continuum Schwinger function methods emergence of hadron mass Nambu-Goldstone modes-pions and kaons nonperturbative quantum field theory parton distributions strong interactions 

摘      要：Clear windows onto emergent hadron mass(EHM)and modulations thereof by Higgs boson interactions are provided by observable measures of pion and kaon structure,many of which are accessible via generalised parton distributions(GPDs).Beginning with algebraic GPD Ansätze,constrained entirely by hadron-scaleπand K valence-parton distribution functions(DFs),in whose forms both EHM and Higgs boson influences are manifest,numerous illustrations are *** include the properties of electromagnetic form factors,impact parameter space GPDs,gravitational form factors and associated pressure profiles,and the character and consequences of allorders *** analyses predict that mass-squared gravitational form factors are stiffer than electromagnetic form factors;reveal that K pressure profiles are tighter than profiles,with both mesons sustaining near-core pressures at magnitudes similar to that expected at the core of neutron stars;deliver parameter-free predictions for and K valence,glue,and sea GPDs at the resolving scale l=2GeV;and predict that at this scale the fraction of meson mass-squared carried by glue and sea combined matches that lodged with the valence degrees-of-freedom,with a similar statement holding for mass-squared radii.