== Hidden Abelian Higgs Model ==

=== Authors ===
   * Claude Duhr 
      * IPPP Durham
      * claude.duhr@durham.ac.uk

=== Description of the model ===
 The Hidden Abelian Higgs Model consists in the standard model extended by a new U(1) gauge symmetry, broken by a new Higgs field. The SM fields are singlets under the new gauge group, and they only couple to the new sector through mixing effects in the gauge and scalar sectors. 
=== References ===
   * J. D. Wells, " ''How to Find a Hidden World at the Large Hadron Collider'',", [arXiv:0803.1243 [hep-ph]] 

=== Model files ===
   * [source:trunk/models/Hidden_Abelian_Higgs_Model/Hidden.fr Hidden.fr]: This is the main file. 
   * [source:trunk/models/Hidden_Abelian_Higgs_Model/Hidden.nb Hidden.nb]: This is an example Mathematica notebook that loads the model and calculates Feynman rules.
=== Instructions ===

The model-file is loaded in the usual way.

Feynman gauge is not supported, only unitary gauge is available.