The aim is to construct simplified models for EW spin-1 resonances arising from strongly-coupled EWSB dynamics which can be used by the experimental collaborations to report their results.


Quantum numbers considered:  rhoL (3,1) ; rhoR (1,3) of SO(4)~SU(2)_L x SU(2)_R


**Models**

We will consider two simplified models, corresponding to two broad interesting theoretical scenarios:

(A)  Model with universal rho couplings to SM fermions (through A-rho mixing) + direct couplings to top/bottom
Parameters: { grho (L/R), mrho (L/R), g_top }

(B) Model with MFV fermion couplings
Parameters: { grho (L/R), mrho (L/R), theta_u , theta_d }


**Tasks**

1) Rotating the Lagrangian into mass eigestate basis (expanding in powers of H/f)
[ Roberto C., C. Grojean, Jamison G., Veronica S., Andreas W. … ]

{{:2013:groups:np:feynrules.pdf | Notes on rotation for model (A)}}

2) Implementation of the models into FeynRules
[ Veronica S., Andreas W. ... ]

3) Derive combined bounds from the existing searches (ll, lnu, VV, Vh, tt, tb) + EWPT
[ Gustaaf B., R. Rosenfeld … ]

4) Mapping into popular models
[ Seung L. ... ]

5) Extensions (e.g. SO(6))
[ Aldo D. … ]

6) Implementation in CalcHEP
[ R. Rosenfeld … ]



**People interested (please sign up)**

Veronica S., Andreas W., Gustaaf B., Roberto C., C. Grojean, Jamison G., Aldo D., A. Kaminska, R. Rosenfeld, Seung L.,  ... 


**Literature**
[[http://arXiv.org/abs/arXiv:1109.1570|arXiv:1109.1570]]