Version 4 (modified by PriscilaAquino, 7 years ago) (diff)


The Higgs Characterization model


  • Priscila de Aquino & Kentarou Mawatari
    • Affiliation: Vrije Universiteit Brussel
    • Emails: paquino @ & kentarou.mawatari @

Description of the model

This is the model file for the characterization of a (125 GeV) resonance. We present a general implementation of particles with different spin/parity coupling to the SM particles.

Particles introduced within this model file: X0, X1 and X2.

  • For requesting a 0+ particle, the user must choose ca=1;
  • For a 0- particle, ca=0;
  • For a 1- particle, kfa, kv1, kv2, kv3 !=0;
  • For a 1+ particle, kfb, kv4, kv5 !=0;
  • For a 2+ with the lowest dimensional (dim-5) operators, kf, kv, ka, kg !=0;
  • For a 2+ with higher dimensional (dim-7) operators, kv1, ka1, kg1 !=0
  • For a 2- particle, kv2, ka2, kg2 != 0.

Notice that ca (and sa) stands for cos[alpha] (and sin[alpha]) and allows the user to have a mix 0- 0+ state: X0 = cos[alpha] 0+ + sin[alpha] 0-

The present model file contains parts of the following existing FR model files:

  • 1) HEFT, author: C. Duhr
  • 2) Minimal Zprime, author: L. Basso
  • 3) RS, author: P. de Aquino

Version updates

  • v1.0 - Release version
  • v1.1 - Added the CP-odd Yukawa terms in the X0 lagrangian and modified the X2 HD lagrangian to be proportional to 1/Lambda3

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