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(Seminar) Yang-Mills Theory in the CHY Formalism

05/29 2019
  • Title (Seminar) Yang-Mills Theory in the CHY Formalism
  • Speaker
  • Date
  • Venue
    • Abstract

    CAS Key Laboratory of Theoretical Physics

    Institute of Theoretical Physics

    Chinese Academy of Sciences

    Seminar

    Title

    题目

    		 Yang-Mills Theory in the CHY Formalism

    Speaker

    报告人

    C. S. Lam

    Affiliation

    所在单位
    McGill/UBC

    Date

    日期
    2:30pm, May 29, 2019, Wednesday
     

    Venue

    地点

    ITP South (New) Building 6420

    Abstract

    摘要

    		 n-gluon tree diagrams can be formally expressed as a Mobius-invariant integral over (n-3) complex variables. In order for this CHY formalism to describe the complete Yang-Mills theory, a similar formula must be found for off-shell gluons, namely, all tree-level Green's functions in momentum space. This is a non-trivial task because space-time local interaction and its propagation, as well as local gauge invariance demanded by the Yang-Mills theory, must be directly incorporated into a Mobius-invariant integral of momenta and polarization. I will discuss how this can be done.

    Contact Person

    所内联系人

    		 Song He