CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation
Abstract
We describe the Fortran code CPsuperH2.}, which contains several improvements and extensions of its predecessor CPsuperH. It implements improved calculations of the Higgs-boson pole masses, notably a full treatment of the 4 times 4 neutral Higgs propagator matrix including the Goldstone boson and a more complete treatment of threshold effects in self-energies and Yukawa couplings, improved treatments of two-body Higgs decays, some important three-body decays, and two-loop Higgs-mediated contributions to electric dipole moments. CPsuperH2.0 also implements an integrated treatment of several B-meson observables, including the branching ratios of B_s to mu^+ mu^-, B_d to tau^+ tau^-, B_u to tau nu, B to X_s gamma and the latter's CP-violating asymmetry A_CP, and the supersymmetric contributions to the B^0_{s,d} - \bar B^0_{s,d} mass differences. These additions make CPsuperH2.0 an attractive integrated tool for analyzing supersymmetric CP and flavour physics as well as searches for new physics at high-energy colliders such as the Tevatron, LHC and linear colliders. The program may be obtained from http://www.hep.man.ac.uk/u/jslee/CPsuperH.html
Keywords
Cite
@article{arxiv.0712.2360,
title = {CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation},
author = {J. S. Lee and M. Carena and J. Ellis and A. Pilaftsis and C. E. M. Wagner},
journal= {arXiv preprint arXiv:0712.2360},
year = {2009}
}
Comments
35 pages, 11 figures, references added, to appear in Comput. Phys. Commun