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Geometric approach to asymptotic expansion of Feynman integrals
Geometric asymptotic expansion Feynman integrals
2010/12/27
We present an algorithm that reveals relevant contributions in non-threshold-type asymptotic expansion of Feynman integrals about a small parameter. It is shown that the problem reduces to finding a c...
We use the Gross-Neveu model in 2 < d < 4 as a simple fermionic example for Weinberg’s
asymptotic safety scenario: despite being perturbatively nonrenormalizable, the model defines an interacting qua...
