https://doi.org/10.1140/epjc/s10052-013-2380-3
Special Article - Tools for Experiment and Theory
Towards testing a two-Higgs-doublet model with maximal CP symmetry at the LHC: Monte Carlo event generator implementation
1
Kirchhoff-Institut für Physik, Universität Heidelberg, Im Neuenheimer Feld 227, 69120, Heidelberg, Germany
2
Fakultät für Physik, Universität Bielefeld, Universitätsstrasse, 33615, Bielefeld, Germany
3
Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120, Heidelberg, Germany
* e-mail: stamen@kip.uni-heidelberg.de
Received:
11
January
2013
Revised:
23
February
2013
Published online:
3
April
2013
A Monte Carlo event generator is implemented for a two-Higgs-doublet model with maximal CP symmetry, the MCPM. The model contains five physical Higgs bosons; the ρ′, behaving similarly to the standard-model Higgs boson, two extra neutral bosons h′ and h″, and a charged pair H
±. The special feature of the MCPM is that, concerning the Yukawa couplings, the bosons h′, h″ and H
± couple directly only to the second-generation fermions but with strengths given by the third-generation-fermion masses. Our event generator allows the simulation of the Drell–Yan-type production processes of h′, h″ and H
± in proton–proton collisions at LHC energies. Also the subsequent leptonic decays of these bosons into the μ
+
μ
−, μ
+
ν
μ
and 
channels are studied as well as the dominant background processes. We estimate the integrated luminosities needed in pp collisions at center-of-mass energies of 8 and 14 TeV for significant observations of the Higgs bosons h′, h″ and H
± in these muonic channels.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013
