Tools for NLO automation: Extension of the golem95C integral library

Published: 1 January 2014| Version 1 | DOI: 10.17632/zyzbg2ssbk.1
J.Ph. Guillet, G. Heinrich, J.F. von Soden-Fraunhofen


Abstract We present an extension of the program golem95C for the numerical evaluation of scalar integrals and tensor form factors entering the calculation of one-loop amplitudes, which supports tensor ranks exceeding the number of propagators. This extension allows various applications in Beyond the Standard Model physics and effective theories, for example higher ranks due to propagators of spin two particles, or due to effective vertices. Complex masses are also supported. The program is not restric... Title of program: golem95-1.3.0 Catalogue Id: AEEO_v3_0 Nature of problem Evaluation of one-loop multi-leg integrals occurring in the calculation of next-to-leading order corrections to scattering amplitudes in particle physics. In the presence of particles with spin two in the loop, or effective vertices, or certain gauges, tensor integrals where the rank exceeds the number of propagators N are required. Versions of this program held in the CPC repository in Mendeley Data AEEO_v1_0; golem95_v1.0; 10.1016/j.cpc.2009.06.024 AEEO_v2_0; golem95-1.2.0; 10.1016/j.cpc.2011.05.015 AEEO_v3_0; golem95-1.3.0; 10.1016/j.cpc.2014.03.009 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)



Computational Physics, Computational Method, Elementary Particle