10-17 July 2019
Ghent
Europe/Brussels timezone

Exclusion Limits on Neutral, Mono and Doubly Charged Vector Bosons at LHC

11 Jul 2019, 18:15
15m
Campus Ledeganck - Aud. 1 (Ghent)

Campus Ledeganck - Aud. 1

Ghent

Parallel talk Searches for New Physics Searches for New Physics

Speaker

Andre Asevedo Nepomuceno (Federal University of of Rio de Janeiro (BR))

Description

In this work, we calculate limits on masses and couplings of neutral, mono and doubly-charged vector bosons predicted by a class of models based on the $SU(3)_{C} \times SU(3)_{L} \times U(1)_{X}$ symmetry group. These models offer an elegant explanation for the threefold replication of quark-lepton families. Different final states, including two, three and four leptons and leptons plus missing transverse energy are investigated. The processes cross-sections are estimated at the next to leading-order. A detector simulation is performed using the DELPHES package assuming the LHC center-of-mass energy of 13 TeV, with pile-up effects taken into account. Combining these calculations with the latest ATLAS results in different searches, we derive the most stringent bounds on masses and couplings for the predicted particles using LHC data. The results exclude the model vector bosons with masses within the range of 1 TeV to 4 TeV.

Primary authors

Andre Asevedo Nepomuceno (Federal University of of Rio de Janeiro (BR)) Bernhard Meirose (University of Texas at Dallas (US))

Presentation Materials