FDH, DRED and FDF variants of dimensional regularization

por Prof. Angelo Raffaele Fazio (Universidad Nacional de Colombia)

viernes 2 mar. 2018 12:00 → 13:00 Europe/Brussels

1001-Primera-135 - Nave Exp. Sala de Audiovisuales (Universe)

The variants of dimensional regularization, so called FDH (Four Dimensional Helicity Scheme), DRED (Dimensional reduction) and FDF (Four Dimensional Formulation) that deal with ultraviolet and infrared singularities appearing in higher order computations in quantum field theories will be compared through the calculation at the next/to/leading order in QCD of the cross section of the electro positron annihilation into quark antiquark.