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Physical Running in Conformal Gravity and Higher Derivative Scalars
Diego Buccio, Luca Parente, Omar Zanusso
We compute the physical running of a general higher derivative scalar coupled to a nondynamical metric and of higher derivative Weyl invariant gravity with a dynamical metric in fo…
Renormalization and running in the 2D model
Diego Buccio, John F. Donoghue, Gabriel Menezes +1
We calculate the scattering amplitude in the two dimensional model in a regularization scheme independent way. When using cutoff regularization, a new Feynman rule from the…
Physical running of couplings in quadratic gravity
Diego Buccio, John F. Donoghue, Gabriel Menezes +1
We argue that the well-known beta functions of quadratic gravity do not correspond to the physical dependence of scattering amplitudes on external momenta, and derive the correct p…