Probing top flavour-changing neutral scalar couplings at the CERN LHC

Top decays into a light Higgs boson and an up or charm quark can reach detectable levels in Standard Model extensions with two Higgs doublets or with new exotic quarks, and in the Minimal Supersymmetric Standard Model. Using both a standard and a neural network analysis we show that the CERN Large H...

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Detalles Bibliográficos
Autores principales: Aguilar-Saavedra, J A, Branco, Gustavo Castello
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)01259-4
http://cds.cern.ch/record/435331
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author Aguilar-Saavedra, J A
Branco, Gustavo Castello
author_facet Aguilar-Saavedra, J A
Branco, Gustavo Castello
author_sort Aguilar-Saavedra, J A
collection CERN
description Top decays into a light Higgs boson and an up or charm quark can reach detectable levels in Standard Model extensions with two Higgs doublets or with new exotic quarks, and in the Minimal Supersymmetric Standard Model. Using both a standard and a neural network analysis we show that the CERN Large Hadron Collider will give 3 sigma evidence of decays with Br(t -> Hc) >= 6.5 10^-5 or set a limit Br(t -> Hc) <= 4.5 10^-5 with a 95% confidence level if these decays are not observed. We also consider limits obtained from single top production associated with a neutral Higgs boson.
id cern-435331
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4353312019-09-30T06:29:59Zdoi:10.1016/S0370-2693(00)01259-4http://cds.cern.ch/record/435331engAguilar-Saavedra, J ABranco, Gustavo CastelloProbing top flavour-changing neutral scalar couplings at the CERN LHCParticle Physics - PhenomenologyTop decays into a light Higgs boson and an up or charm quark can reach detectable levels in Standard Model extensions with two Higgs doublets or with new exotic quarks, and in the Minimal Supersymmetric Standard Model. Using both a standard and a neural network analysis we show that the CERN Large Hadron Collider will give 3 sigma evidence of decays with Br(t -> Hc) >= 6.5 10^-5 or set a limit Br(t -> Hc) <= 4.5 10^-5 with a 95% confidence level if these decays are not observed. We also consider limits obtained from single top production associated with a neutral Higgs boson.hep-ph/0004190UG-FT-113FISIST-2000-4-CFIFoai:cds.cern.ch:4353312000-04-20
spellingShingle Particle Physics - Phenomenology
Aguilar-Saavedra, J A
Branco, Gustavo Castello
Probing top flavour-changing neutral scalar couplings at the CERN LHC
title Probing top flavour-changing neutral scalar couplings at the CERN LHC
title_full Probing top flavour-changing neutral scalar couplings at the CERN LHC
title_fullStr Probing top flavour-changing neutral scalar couplings at the CERN LHC
title_full_unstemmed Probing top flavour-changing neutral scalar couplings at the CERN LHC
title_short Probing top flavour-changing neutral scalar couplings at the CERN LHC
title_sort probing top flavour-changing neutral scalar couplings at the cern lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(00)01259-4
http://cds.cern.ch/record/435331
work_keys_str_mv AT aguilarsaavedraja probingtopflavourchangingneutralscalarcouplingsatthecernlhc
AT brancogustavocastello probingtopflavourchangingneutralscalarcouplingsatthecernlhc

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