Searching for Higgs from the heavy resonance under the general $U(1)_X$ scenario

23 May 2019, 18:00
20m
Laguna Madre (Omni Hotel)

Laguna Madre

Omni Hotel

900 N Shoreline Blvd, Corpus Christi, TX 78401
Oral Electroweak, Top and Higgs Physics Electroweak, Top and Higgs Physics

Speaker

Dr Arindam Das (Osaka University)

Description

The production of Higgs $(h)$ in association with a $Z$ boson from the neutral beyond the Standard Model (SM) gauge boson such as $Z^\prime$. We consider a scenario where the SM is extended by a general $U(1)_X$ group. The charges can be constrained by solving the anomaly free conditions. The $U(1)_X$ charge sector can be expressed in terms of charges of the Higgs and the BSM scalar such as $x_h$ and $x_\Phi$ respectively.These charges will participate in the couplings between the $Z^\prime$ and the other particles of the model. We have examined that there are certain possibilities where the $Z~h$ production from the $Z^\prime$ can be successfully tested at the colliders such as Large Hadron Collider (LHC) and Linear Collider (LC) followed by the reconstruction of $Z^\prime$. In this scenario the presence of the $x_H$ and $x_\Phi$ play a key role in the enhancement of the production cross section, followed by the decay of the $h$ and $Z$ bosons. We also show the current limits on the $U(1)_X$ gauge coupling $(g_X)$ vs the $Z^\prime$ mass comparing with the current bounds obtained by the LHC.

Primary author

Dr Arindam Das (Osaka University)

Co-author

Prof. Nobuchika Okada (University of Alabama)

Presentation materials