Logo image
Search for single production of a heavy vector-like T quark decaying to a Higgs boson and a top quark with a lepton and jets in the final state
Journal article   Open access   Peer reviewed

Search for single production of a heavy vector-like T quark decaying to a Higgs boson and a top quark with a lepton and jets in the final state

CMS Collaboration, Maria Florencia Canelli, Benjamin Kilminster, Thea K Aarrestad, Lea Caminada, Annapaoloa De Cosa, Riccardo Del Burgo, Silvio Donato, Camilla Galloni, Andreas Hinzmann, …
Physics letters. B, Vol.771, pp.80-105
2017
DOI: 10.1016/j.physletb.2017.05.019
url
https://doi.org/10.1016/j.physletb.2017.05.019View
Published (Version of record) Open Access

Abstract

A search for single production of vector-like top quark partners (T) decaying into a Higgs boson and a top quark is performed using data from pp collisions at a centre-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 2.3 $fb^{−1}$. The top quark decay includes an electron or a muon while the Higgs boson decays into a pair of b quarks. No significant excess over standard model backgrounds is observed. Exclusion limits on the product of the production cross section and the branching fraction are derived in the T quark mass range 700 to 1800 GeV. For a mass of 1000 GeV, values of the product of the production cross section and the branching fraction greater than 0.8 and 0.7 pb are excluded at 95% confidence level, assuming left- and right-handed coupling of the T quark to standard model particles, respectively. This is the first analysis setting exclusion limits on the cross section of singly produced vector-like T quarks at a centre-of-mass energy of 13 TeV.
Physics Nuclear and High Energy Physics Physics Institute

Details

Metrics

Logo image