LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass

Thanks to the focus point phenomenon, it is quite {\it natural} for the minimal SUGRA model to have a large soft scalar mass m_0 > 1 TeV. A distinctive feature of this model is an inverted hierarchy, where the lighter stop has a significantly smaller mass than the other squarks and sleptons. Cons...

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Detalles Bibliográficos
Autores principales: Chattopadhyay, U, Datta, Am, Datta, An, Datta, As, Roy, D P
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)01120-5
http://cds.cern.ch/record/453790
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author Chattopadhyay, U
Datta, Am
Datta, An
Datta, As
Roy, D P
author_facet Chattopadhyay, U
Datta, Am
Datta, An
Datta, As
Roy, D P
author_sort Chattopadhyay, U
collection CERN
description Thanks to the focus point phenomenon, it is quite {\it natural} for the minimal SUGRA model to have a large soft scalar mass m_0 > 1 TeV. A distinctive feature of this model is an inverted hierarchy, where the lighter stop has a significantly smaller mass than the other squarks and sleptons. Consequently, the gluino is predicted to decay dominantly via stop exchange into a channel containing 2b and 2W along with the LSP. We exploit this feature to construct a robust signature for this model at the LHC in leptonic channels with 3-4 b-tags and a large missing-E_T.
id cern-453790
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
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spelling cern-4537902019-09-30T06:29:59Zdoi:10.1016/S0370-2693(00)01120-5http://cds.cern.ch/record/453790engChattopadhyay, UDatta, AmDatta, AnDatta, AsRoy, D PLHC Signature of the Minimal SUGRA Model with a Large Soft Scalar MassParticle Physics - PhenomenologyThanks to the focus point phenomenon, it is quite {\it natural} for the minimal SUGRA model to have a large soft scalar mass m_0 > 1 TeV. A distinctive feature of this model is an inverted hierarchy, where the lighter stop has a significantly smaller mass than the other squarks and sleptons. Consequently, the gluino is predicted to decay dominantly via stop exchange into a channel containing 2b and 2W along with the LSP. We exploit this feature to construct a robust signature for this model at the LHC in leptonic channels with 3-4 b-tags and a large missing-E_T.hep-ph/0008228TIFR-TH-2000-42oai:cds.cern.ch:4537902000-08-22
spellingShingle Particle Physics - Phenomenology
Chattopadhyay, U
Datta, Am
Datta, An
Datta, As
Roy, D P
LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title_full LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title_fullStr LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title_full_unstemmed LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title_short LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass
title_sort lhc signature of the minimal sugra model with a large soft scalar mass
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(00)01120-5
http://cds.cern.ch/record/453790
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