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Off-shell green functions: One-loop with growing legs
conference contribution
posted on 2023-05-23, 08:50 authored by Bashir, A, Concha-Sanchez, Y, Robert DelbourgoRobert Delbourgo, Tejeda-Yeomans, MEOne loop calculations in gauge theories in arbitrary gauge and dimensions become exceedingly hard with growing number of external off-shell legs. Let alone higher point functions, such a calculation for even the three point one-loop vertices for quantum electrodynamics (QED) and quantum chromodynamics (QCD) has been made available only recently. In this article, we discuss how Ward-Fradkin-Green-Takahashi identities (WFGTI) may provide a helpful tool in these computations. After providing a glimpse of our suggestion for the case of the 3-point vertex, we present our preliminary findings towards our similar efforts for the 4-point function. We restrict ourselves to the example of scalar quantum electrodynamics (SQED).
History
Publication title
American Institute of Physics (AIP) Conference ProceedingsVolume
1026Editors
H Castilla-Valdez et alPagination
127-131ISBN
978-0-7354-0548-6Department/School
School of Natural SciencesPublisher
American Institute of PhysicsPlace of publication
Melville, USAEvent title
American Institute of Physics (AIP) ConferenceEvent Venue
Tuxtla Gutierrez, MexicoDate of Event (Start Date)
2007-11-07Date of Event (End Date)
2007-11-12Repository Status
- Restricted