Eur. Phys. J. C 24, 385-391 (2002)
DOI: 10.1007/s100520200943
IR finite one-loop box scalar integral with massless internal lines
G. Duplancic and B. NizicTheoretical Physics Division, Rudjer Boskovic Institute, P.O. Box 180, 10002 Zagreb, Croatia
(Received: 31 January 2002 / Published online: 26 April 2002 - © Springer-Verlag / Società Italiana di Fisica 2002 )
Abstract
The IR finite one-loop box scalar integral
with massless internal lines has been recalculated.
The result is very compact, simple and valid for
arbitrary values of the relevant kinematic variables. It is given
in terms
of only two dilogarithms and a few logarithms, all of very simple
arguments.
© Società Italiana di Fisica, Springer-Verlag 2002