Spectroscopy of excited quarkonium states in the light-front quark model  

作　　者：Ritwik Acharyya Satyajit Puhan Harleen Dahiya Narinder Kumar 

机构地区：[1]Computational High Energy Physics Lab,Department of Physics,Dr.B R Ambedkar National Institute of Technology Jalandhar,Punjab,India,144008 [2]Computational Theoretical High Energy Physics Lab,Department of Physics,Doaba College,Jalandhar 144004,India

出　　处：《Chinese Physics C》2025年第2期33-46,共14页中国物理C(英文版)

基　　金：Narinder Kumar and Harleen Dahiya would like to acknowledge the research grant received from the Science and Engineering Research Board,Government of India under Teachers Associateship Research Excellence Award(TAR/2021/000157)。

摘　　要：We investigated the ground state(1S),radially excited states(2S)and(3S),and orbitally excited state(1P)for the heavy charmonia(cc)and bottomonia(bb)mesons in the light-front quark model(LFQM).The light-front wave functions have been successful in explaining various physical properties of meson states in the past,especially for the 1S and 2S states.However,the radially excited state 3S and orbitally excited state 1P have rarely been investigated.In this study,we considered these two excited states and investigated the electromagnetic form factors(EMFFs),charge radii,decay constants,parton distribution functions(PDFs),and the distribution amplitudes(DAs)for the quarkonia system.For the sake of completeness,we also studied the ground and the first excited states of quarkonia mesons.We also illustrated the 3D wave functions for the radially excited states to study their nodal structures.

关 键 词：decay constants distribution amplitudes form factors parton distribution functions light-front quark model heavy charmonia and bottomonia 

分 类 号：O57[理学—粒子物理与原子核物理]