Results 11 to 20 of about 71,268 (259)
A Feynman Diagram Analyser DIANA [PDF]
Computer Physics Communications, 1999 A C-program DIANA (DIagram ANAlyser) for the automatic Feynman diagram evaluation is presented. It consists of two parts: the analyzer of diagrams and the interpreter of a special text manipulating language.
Fleischer, J., Tentyukov, M.
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Spin foams as Feynman diagrams [PDF]
2001: A Relativistic Spacetime Odyssey, 2000 It has been recently shown that a certain non-topological spin foam model can be obtained from the Feynman expansion of a field theory over a group. The field theory defines a natural ``sum over triangulations'', which removes the cut off on the number of degrees of freedom and restores full covariance.
Michael Reisenberger, Carlo Rovelli
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Potts models on Feynman diagrams [PDF]
Journal of Physics A: Mathematical and General, 1997 10 pages, latex, + 6 postscript ...
D.A. Johnston, Petr Plecháč
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Twistor coverings and Feynman diagrams
Journal of High Energy Physics, 2022 Recently, a worldsheet dual to free N $$ \mathcal{N} $$ = 4 Super Yang-Mills has been proposed in terms of twistor variables for AdS5, in parallel to that for the AdS3 dual to the free symmetric orbifold CFT. In the latter case, holomorphic covering maps
Faizan Bhat +3 more
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Symmetry factors of Feynman diagrams and the homological perturbation lemma
Journal of High Energy Physics, 2020 We discuss the symmetry factors of Feynman diagrams of scalar field theories with polynomial potential. After giving a concise general formula for them, we present an elementary and direct proof that when computing scattering amplitudes using the ...
Christian Saemann +1 more
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Triangle diagram, distance geometry and Symmetries of Feynman Integrals
Journal of High Energy Physics, 2020 We study the most general triangle diagram through the Symmetries of Feynman Integrals (SFI) approach. The SFI equation system is obtained and presented in a simple basis.
Barak Kol, Subhajit Mazumdar
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Quantum field-theoretical descriprion of neutrino oscillations in T2K experiment [PDF]
EPJ Web of Conferences, 2019 We consider neutrino oscillations in the T2K experiment using a new quantum field-theoretical approach to the description of processes passing at finite space-time intervals.
Egorov Vadim, Rusalev Timofei
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Asymptotic analysis of Feynman diagrams and their maximal cuts
European Physical Journal C: Particles and Fields, 2020 The ASPIRE program, which is based on the Landau singularities and the method of Power geometry to unveil the regions required for the evaluation of a given Feynman diagram asymptotically in a given limit, also allows for the evaluation of scaling coming
B. Ananthanarayan +2 more
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Scattering equations and Feynman diagrams [PDF]
Journal of High Energy Physics, 2015 We show a direct matching between individual Feynman diagrams and integration measures in the scattering equation formalism of Cachazo, He and Yuan. The connection is most easily explained in terms of triangular graphs associated with planar Feynman diagrams in $ ^3$-theory.
Christian Baadsgaard +3 more
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