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Title: New signal for singlet Higgs and vector-like quarks at the LHC

Here, we consider an extension of the Standard Model involving a singlet Higgs and down type vector-like quarks in the light of the current LHC Higgs data. For a good range of the parameters of the Higgs potential, and a mass range for the heavy vector-like quark, we find that the singlet heavy Higgs arising from the production and decay of the vector-like quarks give rise to (2b4t) signal. The subsequent decay of the top quarks to bW + gives rise to a final state with six b quarks, two same-sign charged leptons and missing transverse momenta with observable cross-sections at the 14 TeV run of the Large Hadron Collider. The Standard Model background for such a final state is practically negligible.
Authors:
 [1] ;  [1] ; ORCiD logo [2]
  1. Oklahoma State Univ., Stillwater, OK (United States)
  2. Harish-Chandra Research Institute, Allahabad (India)
Publication Date:
Grant/Contract Number:
SC0010108
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 737; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Oklahoma State Univ., Stillwater, OK (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1227772
Alternate Identifier(s):
OSTI ID: 1444074

Karabacak, Durmus, Nandi, S., and Rai, Santosh Kumar. New signal for singlet Higgs and vector-like quarks at the LHC. United States: N. p., Web. doi:10.1016/j.physletb.2014.08.065.
Karabacak, Durmus, Nandi, S., & Rai, Santosh Kumar. New signal for singlet Higgs and vector-like quarks at the LHC. United States. doi:10.1016/j.physletb.2014.08.065.
Karabacak, Durmus, Nandi, S., and Rai, Santosh Kumar. 2014. "New signal for singlet Higgs and vector-like quarks at the LHC". United States. doi:10.1016/j.physletb.2014.08.065.
@article{osti_1227772,
title = {New signal for singlet Higgs and vector-like quarks at the LHC},
author = {Karabacak, Durmus and Nandi, S. and Rai, Santosh Kumar},
abstractNote = {Here, we consider an extension of the Standard Model involving a singlet Higgs and down type vector-like quarks in the light of the current LHC Higgs data. For a good range of the parameters of the Higgs potential, and a mass range for the heavy vector-like quark, we find that the singlet heavy Higgs arising from the production and decay of the vector-like quarks give rise to (2b4t) signal. The subsequent decay of the top quarks to bW+ gives rise to a final state with six b quarks, two same-sign charged leptons and missing transverse momenta with observable cross-sections at the 14 TeV run of the Large Hadron Collider. The Standard Model background for such a final state is practically negligible.},
doi = {10.1016/j.physletb.2014.08.065},
journal = {Physics Letters. Section B},
number = C,
volume = 737,
place = {United States},
year = {2014},
month = {9}
}