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22-27 March 2015
Hotel do Bosque
Brazil/East timezone

Implicit and explicit renormalization of effective interactions

Not scheduled
3h 30m
Hotel do Bosque

Hotel do Bosque

Rodovia Mário Covas (Rio-Santos) BR - 101 Sul, Km 533, Angra dos Reis, RJ, Brazil
Poster Field theoretical approaches to QCD


Prof. Sergio Szpigel (UPM)


Effective interactions can be obtained from a renormalization group analysis in two complementary ways. One can either explicitly integrate out higher energy modes or impose given conditions at low energies for a cutoff theory. While the first method is numerically involved, the second one can be solved almost analytically. In both cases we compare the outcoming effective interactions as functions of the cutoff scale Λ. We carry out a comprehensive analysis of a toy-model which captures the main features of the nucleon-nucleon S-wave interaction at low energies and find a strikingly wide energy region where both approaches overlap

Primary author

Prof. Sergio Szpigel (UPM)


Prof. Enrique Ruiz Arriola (University of Granada) Prof. Varese Salvador Timóteo (UNICAMP)

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