1. Consider a real scalar field phi with interaction Largrangian L_int = (p/(3!))phi^3. What is the mass dimension of u? Evaluate the leading u-dependent contributions to the following equation: (see attached file)© BrainMass Inc. brainmass.com October 10, 2019, 7:52 am ad1c9bdddf
This solution calculates the lowest order of perturbation in terms of a Feynman propagator.