Authors

• Jeong Han Kim (main contact)
  • The University of Kansas
  • jeonghan.kim@…

• K.C. Kong
  • The University of Kansas
  • kckong@…

• Seung J. Lee
  • Korea University
  • s.jj.lee@…

• Gopolang Mohlabeng
  • BNL
  • mohlabeng319@…

Description of the model

We consider a color singlet vector particle (V₁) which dominantly couples to top and anti-top. Assuming that all other interactions are weak, the relevant interaction is given by the following renormalizable Lagrangian

where P_L (P_R) is a left (right)-handed projection operator. There are three free parameters, the vector resonance mass (M_V1), the overall coupling strength (c_t), and the chirality angle (θ).

Model files

• Top_Philic.fr ​: the main model file.
• Top_Philic_UFO_gen.nb​: the Mathematica notebook to generate a UFO output, including basic Feynman rules and analytic expressions of the decay width of V₁. The notebook also generates a text script for a tree-level production of V₁ in a four-top final state (​arXiv:1604.07421).

• Top_Philic_UFO​: the UFO output.

Notes:

• There are three free parameters in the model：
  • ct1: the overall coupling strength (c_t)
  • theta1: the chirality angle (θ)
  • Mv1: the vector resonance mass (M_V1)

• Set the automatic width calculation: set param_card Wv1 Auto.
• The syntax for the tree-level production of V₁ is given by: generate p p > t t~ v1/v1 , v1 > t t~

References

[1] Jeong Han Kim, K.C. Kong, Seung J. Lee and Gopolang Mohlabeng, Probing TeV Scale Top-Philic Resonances with Boosted Top-Tagging at the High Luminosity LHC, Phys. Rev. D 94 (2016) 3, 035023, ​arXiv:1604.07421.

[2] Nicolas Greiner, K.C. Kong, Jong-Chul Park, Seong Chan Park, Jan-Christopher Winter, Model-Independent Production of a Top-Philic Resonance at the LHC, JHEP 1504 (2015) 029, ​arXiv:1410.6099.