= Zh production =

This page contains the codes for calculating cross sections or generate event for Zh associated production at LHC through gluon fusion. 

'''Authors :  Benoit Hespel and Eleni Vryonidou'''

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== SM ==

[[Image(ZH_diag.png)]]

We calculated the gluon-gluon fusion contribution to Zh production. This is formally part of the NNLO QCD corrections to ZH production in proton-proton collisions. We generate events using the infinite top mass EFT and then with a dedicated reweighting code we introduce the exact quark mass dependance of the loops. 

This code has been checked against the program vh@nnlo (arxiv:1210.5347 [hep-ph]) and can be downloaded here [attachment:ZH_code.tar.gz ZH_code]