Determining arbitrary Feynman integrals by vacuum integrals

Liu, X; Ma, YQ

Liu, X; Ma, YQ (reprint author), Peking Univ, Sch Phys, Beijing 100871, Peoples R China.; Liu, X; Ma, YQ (reprint author), Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.; Ma, YQ (reprint author), Peking Univ, Ctr High Ene

PHYSICAL REVIEW D, 2019; 99 (7):

Abstract

By introducing an auxiliary parameter, we find a new representation for Feynman integrals, which defines a Feynman integral by analytical continuation......

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