What is it about?
The method essentially keeps the mass at all orders in perturbation theory equal to its tree level value. This is a key property of the perturbative devised along with a novel manner to simplify the intermediate parametric integrals appearing in the higher order terms of the two-point vertex part.
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Why is it important?
The proper treatment of overlapping divergences in the two-point vertex part turns out to solve the perturbative problem in terms of logarithmic integrals analogously to the massless case. This is the simplest method of massive minimal subtraction to date.
Perspectives
Massive theories can now be addressed in the ultraviolet regime without necessity to neglect masses in the internal propagators.
Marcelo M. Leite
Departamento de Física, Universidade Federal de Pernambuco, Recife, PE, Brazil
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This page is a summary of: The simplest minimal subtraction for massive scalar field theory, Journal of Mathematical Physics, January 2025, American Institute of Physics,
DOI: 10.1063/5.0217569.
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