Four tops for LHC

We design a search strategy for the Standard Model t¯tt¯tproduction at the LHC in the same-sign dilepton and trilepton channels. We study different signal features and, given the small expected number of signal events, we scrutinize in detail all reducible and irreducible backgrounds. Our analysis s...

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Detalles Bibliográficos
Autores principales: Alvarez, Ezequiel, Faroughy, Darius A., Kamenik, Jernej F., Morales, Roberto Aníbal, Szynkman, Alejandro Andrés
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78625
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78625
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Alvarez, Ezequiel
Faroughy, Darius A.
Kamenik, Jernej F.
Morales, Roberto Aníbal
Szynkman, Alejandro Andrés
Four tops for LHC
topic_facet Física
description We design a search strategy for the Standard Model t¯tt¯tproduction at the LHC in the same-sign dilepton and trilepton channels. We study different signal features and, given the small expected number of signal events, we scrutinize in detail all reducible and irreducible backgrounds. Our analysis shows that by im-posing a basic set of jet and lepton selection criteria, the SM pp→t¯tt¯tprocess could be evidenced in the near future, within Run-II, when combining both multi-lepton search channels. We argue that this search strategy should also be used as a guideline to test New Physics coupling predominantly to top-quarks. In particular, we show that a non-resonant New Physics enhancement in the four-top final state would be de-tectable through this search strategy. We study two top-philicsimplified models of this kind, a neutral scalar boson and a Z0, and present current and future exclusion limits on their mass and couplings.
format Articulo
Articulo
author Alvarez, Ezequiel
Faroughy, Darius A.
Kamenik, Jernej F.
Morales, Roberto Aníbal
Szynkman, Alejandro Andrés
author_facet Alvarez, Ezequiel
Faroughy, Darius A.
Kamenik, Jernej F.
Morales, Roberto Aníbal
Szynkman, Alejandro Andrés
author_sort Alvarez, Ezequiel
title Four tops for LHC
title_short Four tops for LHC
title_full Four tops for LHC
title_fullStr Four tops for LHC
title_full_unstemmed Four tops for LHC
title_sort four tops for lhc
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/78625
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AT faroughydariusa fourtopsforlhc
AT kamenikjernejf fourtopsforlhc
AT moralesrobertoanibal fourtopsforlhc
AT szynkmanalejandroandres fourtopsforlhc
bdutipo_str Repositorios
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