Discussions

• 3 You must be logged in to vote

  🎤

  Introducing FeynCalcLegacy addon

  vsht announced Apr 17, 2026 in Announcement

  

  

  0
• 2 You must be logged in to vote

  🤔

  Changing propagator's gauge in FeynCalc 10.0.0 and FeynArts 3.11

  Matoro365 asked Nov 24, 2025 in Q&A · Unanswered

  

  

  1
• 2 You must be logged in to vote

  🤔

  Different symmetries of a vertex of the same type.

  daniilkrichevskiyDM asked Jun 10, 2026 in Q&A · Unanswered

  

  

  2
• 1 You must be logged in to vote

  🤔

  Use FMSpinorChainExplicit2 to deal with the two fermion lines

  Xiu-Lei asked Jan 14, 2026 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🤔

  Trying to get 2-loop amplitude/form factor in GLI format using ApartFF and FCLoopTensorReduce

  mashhoudtt asked Jan 20, 2026 in Q&A · Answered

  

  

  7
• 1 You must be logged in to vote

  

  Suggestions on working and debugging routines using the GLIs format? (Incomplete propagator basis)

  yuxunguo started Jan 28, 2026 in General

  

  

  11
• 1 You must be logged in to vote

  

  Momentum shifts in FCLoopBasisSplit ?

  MJKirk started Feb 13, 2026 in General

  

  

  5
• 1 You must be logged in to vote

  🤔

  Question: FCFAConvert output from 4-fermion (current-current) model is not directly in FeynCalc syntax

  UserName402394 asked Feb 11, 2026 in Q&A · Unanswered

  

  

  3
• 1 You must be logged in to vote

  🤔

  Issue with noninteger propagator in FCLoopFindTopologies/FCLoopTensorReduce/FCLoopApplyTopologyMappings

  mashhoudtt asked Mar 3, 2026 in Q&A · Answered

  

  

  12
• 1 You must be logged in to vote

  🤔

  How to make Contract faster

  Pgoller asked Dec 2, 2025 in Q&A · Unanswered

  

  

  

  

  2
• 1 You must be logged in to vote

  🤔

  TID for contributions to the flow of the Graviton 4-point function

  floriandyduch-bot asked Jun 3, 2026 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🤔

  FCLoopFindMomentumShifts Unable to identify valid shift

  adisurtya asked Jun 19, 2026 in Q&A · Answered

  

  

  3
• 1 You must be logged in to vote

  🤔

  FeynCalc 10.2.1: FCMultiLoopTID

  hyejungs-k asked Jul 28, 2026 in Q&A · Unanswered

  

  

  4
• 1 You must be logged in to vote

  🤔

  Logarithms and ComplexConjugate

  fcornetgomez asked Oct 2, 2025 in Q&A · Answered

  

  

  2