Wilsonian Renormalization Group and the Lippmann-Schwinger Equation with a Multitude of Cutoff Parameters

作     者：E.Epelbaum J.Gegelia Ulf-G.Meiβner 

作者机构：Institut fur Theoretische Physik II Ruhr-Universitat Bochum D-44780 Bochum Germany Institute for Advanced Simulation Institut fur Kernphysik and Julich Center for Hadron Physics Forschungszentrum Jiilich D-52425 Julich Germany Tbilisi State University 0186 Tbilisi Georgia Helmholtz Institut fur Strahlen und Kernphysik and Bethe Center for Theoretical Physics Universitat Bonn D-53115 Bonn Germany 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2018年第69卷第3期

页      面：303-307页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported in part by BMBF under Grant No.05P2015–NUSTAR R&D) DFG and NSFC through Funds Provided to the SinoGerman CRC 110 “Symmetries and the Emergence of Structure in QCD” National Natural Science Foundation of China under Grant No.11621131001,DFG Grant No.TRR110 the Georgian Shota Rustaveli National Science Foundation(grant FR/417/6-100/14) the CAS President’s International Fellowship Initiative(PIFI)under Grant No.2017VMA0025 

主　　题：正常化 方程 域理论 微分 泰勒 

摘      要：The Wilsonian renormalization group approach to the Lippmann-Schwinger equation with a multitude of cutoff parameters is introduced.A system of integro-differential equations for the cutoff-dependent potential is *** an illustration,a perturbative solution of these equations with two cutoff parameters for a simple case of an S-wave low-energy potential in the form of a Taylor series in momenta is *** relevance of the obtained results for the effective field theory approach to nucleon-nucleon scattering is discussed.