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题名: Subtraction of power counting breaking terms in chiral perturbation theory: spinless matter fields
作者: Du, ML ;  Guo, FK ;  Meissner, UG
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2016
期号: 10, 页码:122
关键词: Chiral Lagrangians ;  Effective field theories
学科分类: Physics
DOI: http://dx.doi.org/10.1007/JHEP10(2016)122
通讯作者: Du, ML (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany. ;  Du, ML (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, Nussallee 14-16, D-53115 Bonn, Germany.
文章类型: Article
英文摘要: When matter fields are included in chiral perturbation theory, the nonvanishing mass in the chiral limit introduces a new energy scale so that the loop diagrams including such matter field propagators spoil the usual power counting. However, the power counting breaking terms can be absorbed into counterterms in the chiral Lagrangian. In this paper, we systematically derive these terms to leading one-loop order (next-to-next-to leading order in the chiral expansion) at once by calculating the generating functional using the path integral. They are then absorbed by counterterms in the next-to-leading order Lagrangian. The method can be extended to calculating power counting breaking terms for other matter fields.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: ONE-LOOP ;  SCATTERING ;  NUCLEON ;  DYNAMICS ;  QUARK ;  MASS
收录类别: SCI
项目资助者: DFG ;  NSFC [11621131001] ;  Thousand Talents Plan for Young Professionals ;  Chinese Academy of Sciences (CAS) [QYZDB-SSW-SYS013] ;  CAS President's International Fellowship Initiative (PIFI) [2015VMA076]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21501
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Du, ML,Guo, FK,Meissner, UG. Subtraction of power counting breaking terms in chiral perturbation theory: spinless matter fields[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(10):122.
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