https://doi.org/10.1140/epjc/s10052-015-3870-2
Regular Article - Theoretical Physics
GM2Calc: precise MSSM prediction for 
of the muon
1
ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, Monash University, Melbourne, VIC, 3800, Australia
2
Institut für Kern- und Teilchenphysik, TU Dresden, Zellescher Weg 19, 01069, Dresden, Germany
3
Departamento de Ciências Exatas, Universidade Federal de Lavras, Lavras, 37200-000, Brazil
4
Departament de Física Teòrica and IFIC, Universitat de València-CSIC, 46100, Burjassot, Spain
5
Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany
* e-mail: Alexander.Voigt@desy.de
Received:
9
November
2015
Accepted:
26
December
2015
Published online:
6
February
2016
We present GM2Calc, a public C++ program for the calculation of MSSM contributions to the anomalous magnetic moment of the muon, 
. The code computes precisely, by taking into account the latest two-loop corrections and by performing the calculation in a physical on-shell renormalization scheme. In particular the program includes a 
resummation so that it is valid for arbitrarily high values of , as well as fermion/sfermion-loop corrections which lead to non-decoupling effects from heavy squarks. GM2Calc can be run with a standard SLHA input file, internally converting the input into on-shell parameters. Alternatively, input parameters may be specified directly in this on-shell scheme. In both cases the input file allows one to switch on/off individual contributions to study their relative impact. This paper also provides typical usage examples not only in conjunction with spectrum generators and plotting programs but also as C++ subroutines linked to other programs.
© The Author(s), 2016
