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Title: Distinguishing standard model extensions using monotop chirality at the LHC

Abstract

Here, we present two minimal extensions of the standard model, each giving rise to baryogenesis. They include heavy color-triplet scalars interacting with a light Majorana fermion that can be the dark matter (DM) candidate. The electroweak charges of the new scalars govern their couplings to quarks of different chirality, which leads to different collider signals. These models predict monotop events at the LHC and the energy spectrum of decay products of highly polarized top quarks can be used to establish the chiral nature of the interactions involving the heavy scalars and the DM. Detailed simulation of signal and standard model background events is performed, showing that top quark chirality can be distinguished in hadronic and leptonic decays of the top quarks.

Authors:
 [1];  [2];  [2];  [3];  [2];  [4];  [5];  [2];  [3]
  1. Univ. of New Mexico, Albuquerque, NM (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Univ. de los Andes, Bloque IP (Columbia)
  4. Texas A & M Univ., College Station, TX (United States); Kyungpook National Univ., Daegu (South Korea)
  5. Univ. of Regina, SK (Canada)
Publication Date:
Research Org.:
Texas A&M Univ., College Station, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1465393
Grant/Contract Number:  
FG02-13ER42020; SC0010813
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 12; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Dark matter; Top physics; Exotics; Hadron-Hadron scattering (experiments)

Citation Formats

Allahverdi, Rouzbeh, Dalchenko, Mykhailo, Dutta, Bhaskar, Florez, Andres, Gao, Yu, Kamon, Teruki, Kolev, Nikolay, Mueller, Ryan, and Segura, Manuel. Distinguishing standard model extensions using monotop chirality at the LHC. United States: N. p., 2016. Web. doi:10.1007/JHEP12(2016)046.
Allahverdi, Rouzbeh, Dalchenko, Mykhailo, Dutta, Bhaskar, Florez, Andres, Gao, Yu, Kamon, Teruki, Kolev, Nikolay, Mueller, Ryan, & Segura, Manuel. Distinguishing standard model extensions using monotop chirality at the LHC. United States. doi:10.1007/JHEP12(2016)046.
Allahverdi, Rouzbeh, Dalchenko, Mykhailo, Dutta, Bhaskar, Florez, Andres, Gao, Yu, Kamon, Teruki, Kolev, Nikolay, Mueller, Ryan, and Segura, Manuel. Tue . "Distinguishing standard model extensions using monotop chirality at the LHC". United States. doi:10.1007/JHEP12(2016)046. https://www.osti.gov/servlets/purl/1465393.
@article{osti_1465393,
title = {Distinguishing standard model extensions using monotop chirality at the LHC},
author = {Allahverdi, Rouzbeh and Dalchenko, Mykhailo and Dutta, Bhaskar and Florez, Andres and Gao, Yu and Kamon, Teruki and Kolev, Nikolay and Mueller, Ryan and Segura, Manuel},
abstractNote = {Here, we present two minimal extensions of the standard model, each giving rise to baryogenesis. They include heavy color-triplet scalars interacting with a light Majorana fermion that can be the dark matter (DM) candidate. The electroweak charges of the new scalars govern their couplings to quarks of different chirality, which leads to different collider signals. These models predict monotop events at the LHC and the energy spectrum of decay products of highly polarized top quarks can be used to establish the chiral nature of the interactions involving the heavy scalars and the DM. Detailed simulation of signal and standard model background events is performed, showing that top quark chirality can be distinguished in hadronic and leptonic decays of the top quarks.},
doi = {10.1007/JHEP12(2016)046},
journal = {Journal of High Energy Physics (Online)},
number = 12,
volume = 2016,
place = {United States},
year = {2016},
month = {12}
}

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Works referenced in this record:

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