Artículos de revistas
Reformulating the TBA equations for the quark anti-quark potential and their two loop expansion
Fecha
2014-03Registro en:
Bajnok, Zoltán; Balog, János; Correa, Diego Hernán; Hegedüs, Árpád; Schaposnik Massolo, Fidel Iván; et al.; Reformulating the TBA equations for the quark anti-quark potential and their two loop expansion; Springer Heidelberg; Journal of High Energy Physics; 3; 56; 3-2014; 1-26
1126-6708
1029-8479
CONICET Digital
CONICET
Autor
Bajnok, Zoltán
Balog, János
Correa, Diego Hernán
Hegedüs, Árpád
Schaposnik Massolo, Fidel Iván
Tóth, Gabor Zsolt
Resumen
The boundary thermodynamic Bethe Ansatz (BTBA) equations introduced in [1, 2] to describe the cusp anomalous dimension contain imaginary chemical potentials and singular boundary fugacities, which make its systematic expansion problematic. We propose an alternative formulation based on real chemical potentials and additional source terms. We expand our equations to double wrapping order and find complete agreement with the direct two-loop gauge theory computation of the cusp anomalous dimension.