Otro
EVALUATING ONE-LOOP LIGHT-CONE INTEGRALS BY COVARIANTIZING THE GAUGE-DEPENDENT POLE
Registro en:
Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 8, n. 25, p. 2365-2375, 1993.
0217-7323
10.1142/S0217732393003664
WOS:A1993LY48700004
Autor
Suzuki, A. T.
Resumen
Making sure that causality be preserved by means of ''covariantizing'' the gauge-dependent singularity in the propagator of the vector potential A(mu)(x), we show that the evaluation of some basic one-loop light-cone integrals reproduce those results obtained through the Mandelstam-Leibbrandt prescription. Moreover, such a covariantization has the advantage of leading to simpler integrals to be performed in the cone variables (the bonus), although, of course, it introduces an additional alpha-parameter integral to be performed (the price to pay).