Hadron and light nucleus radii from electron scattering  

作　　者：Zhu-Fang Cui Daniele Binosi Craig D.Roberts Sebastian M.Schmidt 崔著钫;Daniele Binosi;Craig D.Roberts;Sebastian M.Schmidt(School of Physics,Nanjing University,Nanjing 210093,China;Institute for Nonperturbative Physics,Nanjing University,Nanjing 210093,China;European Centre for Theoretical Studies in Nuclear Physics and Related Areas Villa Tambosi,Strada delle Tabarelle 286,I-38123 Villazzano(TN),Italy;Helmholtz-Zentrum Dresden-Rossendorf,Dresden D-01314,Germany;RWTH Aachen University,Ⅲ.Physikalisches Institut B,Aachen D-52074,Germany)

机构地区：[1]School of Physics,Nanjing University,Nanjing 210093,China [2]Institute for Nonperturbative Physics,Nanjing University,Nanjing 210093,China [3]European Centre for Theoretical Studies in Nuclear Physics and Related Areas Villa Tambosi,Strada delle Tabarelle 286,I-38123 Villazzano(TN),Italy [4]Helmholtz-Zentrum Dresden-Rossendorf,Dresden D-01314,Germany [5]RWTH Aachen University,Ⅲ.Physikalisches Institut B,Aachen D-52074,Germany

出　　处：《Chinese Physics C》2022年第12期1-15,共15页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12135007);Natural Science Foundation of Jiangsu Province(BK20220122);STRONG-2020"The strong interaction at the frontier of knowledge:fundamental research and applications"which received funding from the European Union's Horizon 2020 research and innovation programme(824093)。

摘　　要：Conceptually,radii are amongst the simplest Poincaré-invariant properties that can be associated with hadrons and light nuclei.Accurate values of these quantities are necessary so that one may judge the character of putative solutions to the strong interaction problem within the Standard Model.However,limiting their ability to serve in this role,recent measurements and new analyses of older data have revealed uncertainties and imprecisions in the radii of the proton,pion,kaon,and deuteron.In the context of radius measurement using electron+hadron elastic scattering,the past decade has shown that reliable extraction requires minimisation of bias associated with practitioner-dependent choices of data fitting functions.Different answers to that challenge have been offered;and this perspective describes the statistical Schlessinger point method(SPM),in unifying applications to proton,pion,kaon,and deuteron radii.Grounded in analytic function theory,independent of assumptions about underlying dynamics,free from practitioner-induced bias,and applicable in the same form to diverse systems and observables,the SPM returns an objective expression of the information contained in any data under consideration.Its robust nature and versatility make it suitable for use in many branches of experiment and theory.

关 键 词：elastic electromagnetic form factors lepton scattering from hadrons and light nuclei emergence of mass muonic atoms proton Nambu-Goldstone modes-pion and kaon DEUTERON strong interactions in the standard model of particle physics 

分 类 号：O572.2[理学—粒子物理与原子核物理]