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v0.1.4 hotfix: actually ship QGRAF model files
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‎.gitignore‎

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*.log
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*.aux
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# QGRAF output .mod files (but not our model files in contrib/qgraf/models/)
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# QGRAF-output .mod files only — our hand-written model files in
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# contrib/qgraf/models/ AND feynman_engine/resources/qgraf/models/ are
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# explicitly tracked (the latter ships in the pip wheel).
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*.mod
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!contrib/qgraf/models/*.mod
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!feynman_engine/resources/qgraf/models/*.mod
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# Secrets / local config
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.env

‎.zenodo.json‎

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{
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"title": "FeynmanEngine",
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"version": "0.1.3",
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"version": "0.1.4",
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"upload_type": "software",
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"access_right": "open",
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"license": "gpl-3.0-only",

‎CITATION.cff‎

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cff-version: 1.2.0
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message: "If you use this software, please cite it as below."
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title: "FeynmanEngine"
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version: "0.1.3"
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version: "0.1.4"
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type: software
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license: "GPL-3.0-only"
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abstract: "A Feynman diagram generator and amplitude calculator for particle physics with a Python API, browser UI, and packaged FastAPI service. Supports tree- and one-loop amplitudes, LO/NLO cross-sections (analytic K-factors, tabulated LHC ratios, Catani-Seymour subtraction, OpenLoops virtuals, EW Sudakov LL+NLL), differential observables, and PDF-convolved hadronic predictions."

‎feynman_engine/resources/qgraf/models/bsm.mod‎

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% BSM simplified dark matter model for QGRAF
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%
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% Particles:
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% SM QED sector: em (e-), ep (e+), mum (mu-), mup (mu+), A (photon)
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% Mediator: Zp (Z' dark photon)
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% Dark matter: chi (scalar DM), chia (scalar DM antiparticle)
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%
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% This model supports processes like:
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% e+ e- -> chi chi~ (DM pair production via Z' or photon)
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% chi chi~ -> e+ e- (DM annihilation)
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% e+ e- -> e+ e- (SM Bhabha scattering)
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% Propagators: [field, dual-field, sign]
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[em, ep, -]
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[mum, mup, -]
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[A, A, +]
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[Zp, Zp, +]
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[chi, chia, +]
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% Vertices
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% SM photon couplings
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[em, ep, A]
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[mum, mup, A]
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% Z' couplings to SM fermions (dark photon couples like photon)
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[em, ep, Zp]
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[mum, mup, Zp]
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% Z' coupling to dark matter
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[chi, chia, Zp]
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% Higgs portal: DM quartic self-coupling (optional contact term)
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[chi, chia, chi, chia]

‎feynman_engine/resources/qgraf/models/electroweak.mod‎

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% Standard Model Electroweak model file for QGRAF
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% Full SM gauge sector: leptons, quarks, gamma, Z, W+/-, H
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% Propagators: [field, dual-field, sign]
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% Leptons
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[em, ep, -]
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[mum, mup, -]
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[taum, taup, -]
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[nue, nuea, -]
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[numu, numua, -]
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[nutau, nutaua, -]
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% Quarks
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[uq, ua, -]
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[dq, da, -]
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[sq, sa, -]
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[cq, ca, -]
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[bq, ba, -]
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[tq, ta, -]
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% Gauge bosons
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[A, A, +]
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[Z, Z, +]
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[Wp, Wm, +]
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% Higgs
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[H, H, +]
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% Vertices
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% QED-like photon couplings
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[em, ep, A]
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[mum, mup, A]
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[taum, taup, A]
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[uq, ua, A]
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[dq, da, A]
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[sq, sa, A]
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[cq, ca, A]
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[bq, ba, A]
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[tq, ta, A]
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% Z couplings
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[em, ep, Z]
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[mum, mup, Z]
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[taum, taup, Z]
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[nue, nuea, Z]
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[numu, numua, Z]
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[nutau, nutaua, Z]
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[uq, ua, Z]
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[dq, da, Z]
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[sq, sa, Z]
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[cq, ca, Z]
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[bq, ba, Z]
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[tq, ta, Z]
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% W couplings (charged current)
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% Leptons
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[em, nuea, Wp]
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[nue, ep, Wm]
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[mum, numua, Wp]
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[numu, mup, Wm]
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[taum, nutaua, Wp]
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[nutau, taup, Wm]
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% Quarks (Wp/Wm swapped for W propagator pairing)
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[uq, da, Wm]
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[dq, ua, Wp]
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[cq, sa, Wm]
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[sq, ca, Wp]
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[tq, ba, Wm]
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[bq, ta, Wp]
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% Gauge self-couplings
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[Wp, Wm, A]
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[Wp, Wm, Z]
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[Wp, Wm, A, A]
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[Wp, Wm, Z, Z]
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[Wp, Wm, Z, A]
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[Wp, Wp, Wm, Wm]
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% Higgs couplings
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[H, Z, Z]
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[H, Wp, Wm]
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[H, H, Z, Z]
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[H, H, Wp, Wm]
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[H, H, H]
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[H, H, H, H]
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% Yukawa (heavy flavors only)
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[em, ep, H]
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[mum, mup, H]
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[taum, taup, H]
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[tq, ta, H]
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[bq, ba, H]
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[cq, ca, H]

‎feynman_engine/resources/qgraf/models/qcd.mod‎

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% QCD model file for QGRAF
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% Particles: uq/ua (u quark/antiquark), dq/da, sq/sa, cq/ca, bq/ba, tq/ta
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% G (gluon), gh/gha (ghost/antighost)
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% Propagators: [field, dual-field, sign]
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[uq, ua, -]
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[dq, da, -]
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[sq, sa, -]
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[cq, ca, -]
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[bq, ba, -]
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[tq, ta, -]
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[G, G, +]
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[gh, gha, -]
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% Vertices
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[uq, ua, G]
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[dq, da, G]
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[sq, sa, G]
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[cq, ca, G]
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[bq, ba, G]
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[tq, ta, G]
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[G, G, G]
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[G, G, G, G]
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[gh, gha, G]

‎feynman_engine/resources/qgraf/models/qcdqed.mod‎

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% QCD+QED model file for QGRAF
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% QCD model extended with photon for mixed processes
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% (e.g. u u~ -> gamma g, u g -> u gamma)
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% Propagators: [field, dual-field, sign]
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[uq, ua, -]
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[dq, da, -]
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[sq, sa, -]
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[cq, ca, -]
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[bq, ba, -]
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[tq, ta, -]
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[G, G, +]
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[gh, gha, -]
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[A, A, +]
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% Vertices
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% quark-gluon
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[uq, ua, G]
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[dq, da, G]
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[sq, sa, G]
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[cq, ca, G]
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[bq, ba, G]
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[tq, ta, G]
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% triple and quartic gluon
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[G, G, G]
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[G, G, G, G]
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% ghost-gluon
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[gh, gha, G]
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% quark-photon
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[uq, ua, A]
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[dq, da, A]
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[sq, sa, A]
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[cq, ca, A]
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[bq, ba, A]
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[tq, ta, A]

‎feynman_engine/resources/qgraf/models/qed.mod‎

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% QED model file for QGRAF
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% QED leptons plus photon
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% Propagators: [field, dual-field, sign]
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% sign = - for fermions (loop sign), + for bosons
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[em, ep, -]
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[mum, mup, -]
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[taum, taup, -]
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[A, A, +]
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% Vertices: [field1, field2, field3]
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[em, ep, A]
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[mum, mup, A]
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[taum, taup, A]

‎pyproject.toml‎

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[project]
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name = "feynman-engine"
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version = "0.1.3"
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version = "0.1.4"
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description = "Feynman diagram generator + amplitude/cross-section calculator wrapping QGRAF, FORM, LoopTools, OpenLoops, and LHAPDF"
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readme = "README.md"
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requires-python = ">=3.11"
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license = "GPL-3.0-only"
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license-files = ["LICENSE"]
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authors = [
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{ name = "Elijah Cavan" },
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{ name = "Elijah Cavan", email = "elijah@baseballtradevalues.com" },
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]
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maintainers = [
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{ name = "Elijah Cavan", email = "elijah@baseballtradevalues.com" },
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]
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keywords = [
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"particle physics",
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"feynman diagrams",
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"scattering amplitudes",
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"quantum field theory",
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"QFT",
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"qgraf",
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"form",
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"looptools",
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"openloops",
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"lhapdf",
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"drell-yan",
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"NLO",
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"EW Sudakov",
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"Catani-Seymour",
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"parton distribution functions",
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"fastapi",
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"tikz-feynman",
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]
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classifiers = [
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"Development Status :: 4 - Beta",
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"Intended Audience :: Science/Research",
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"Intended Audience :: Education",
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"Topic :: Scientific/Engineering :: Physics",
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"Topic :: Scientific/Engineering :: Visualization",
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"Programming Language :: Python :: 3",
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"Programming Language :: Python :: 3.11",
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"Programming Language :: Python :: 3.12",
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"Programming Language :: Python :: 3.13",
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"Programming Language :: Python :: 3.14",
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"Operating System :: MacOS",
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"Operating System :: POSIX :: Linux",
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"Framework :: FastAPI",
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"Environment :: Web Environment",
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"Environment :: Console",
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]
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dependencies = [
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"numpy>=1.26",
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[project.urls]
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Homepage = "https://github.com/ecavan/FeynmanAPI"
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Repository = "https://github.com/ecavan/FeynmanAPI"
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Documentation = "https://github.com/ecavan/FeynmanAPI/blob/main/README.md"
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"Installation Guide" = "https://github.com/ecavan/FeynmanAPI/blob/main/INSTALLATION.md"
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"Citation (CFF)" = "https://github.com/ecavan/FeynmanAPI/blob/main/CITATION.cff"
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"DOI (Zenodo)" = "https://doi.org/10.5281/zenodo.19673075"
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Issues = "https://github.com/ecavan/FeynmanAPI/issues"
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"Source Code" = "https://github.com/ecavan/FeynmanAPI"
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[project.optional-dependencies]
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dev = [

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