Antoine Laureys

Centre for Cosmology, Particle Physics and Phenomenology (CP3)
Université Catholique de Louvain
Chemin du Cyclotron 2
1348 Louvain-La-Neuve, Belgium
mail : antoine.laureys@uclouvain.be
Last modification : 2012-10-17

## $\underline{gg \rightarrow h^0 h^0}$

Below, you will find a model which allows to generate unweighted events for two Higgs boson production through gluon fusion in the Standard Model.
It includes the s-channel with the trilinear Higgs coupling and the contribution from the box diagrams with the exact top quark mass dependence. However, the bottom quark contribution is neglected.
Several checks were made to validate the implementation. The matrix element coïncides point-by-point in phase space with MadLoop, the cross section was succesfully checked with Michael Spira's code (hpair) and finally we compared distributions with an independent implementation of the process.

In order to use this model, please follow the next steps :