Renormalization of one-pion exchange in higher partial waves in chiral effective field theory for antinucleon-nucleon system

作     者：周大任 Daren Zhou

作者机构：School of Electrical and Computer EngineeringNanfang CollegeGuangzhouGuangdong 510970China 

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

年 卷 期：2023年第47卷第3期

页      面：154-168页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the Doctoral Fund Project of Nanfang College Guangzhou(2020BQ03) 

主　　题：renormalization chiral effective field theory antinucleon-nucleon scattering 

摘      要：The renormalization of the iterated onepion exchange(OPE)has been studied in chiral effective field theory(χEFT)for the antinucleon-nucleon(NN)scattering in some partial waves(***.C 105,054005(2022)).In this paper,we go further for the other higher partial waves but with total angular momenta J≤*** interactions are represented by a complex spherical well in the coordinate *** the radius of the spherical well means changing the *** check the cutoff dependence of the phase shifts,inelasticities,and mixing angles for the partial waves and show that contact interactions are needed at leading order in channels where the singular tensor potentials of OPE are *** results are compared with the energy-dependent partial-wave analysis of NN scattering *** between our conclusions and applications of χEFT to the nucleon-nuc-leon system are also discussed.