Extending SUSY reach at the CERN large hadron collider using b-tagging

Mercadante, P. G.; Mizukoshi, J. K.; Tata, Xerxes

doi:10.1590/s0103-97332007000400013

“…We note that several works where sparticle signatures are discussed have appeared recently [79,80,81,82,83,84]. However, the issue of hierarchical mass patterns and the correlation of signatures with such patterns has not been discussed which is what the analysis of this work investigates.…”

Section: Event Generation and Detector Simulationmentioning

confidence: 94%

Sparticles at the LHC

Feldman¹,

Liu²,

Nath³

2008

J. High Energy Phys.

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Sparticle mass hierarchies will play an important role in the type of signatures that will be visible at the Large Hadron Collider. We analyze these hierarchies for the four lightest sparticles for a general class of supergravity unified models including nonuniversalities in the soft breaking sector. It is shown that out of nearly 10 4 possibilities of sparticle mass hierarchies, only a small number survives the rigorous constraints of radiative electroweak symmetry breaking, relic density and other experimental constraints. The signature space of these mass patterns at the Large Hadron Collider is investigated using a large set of final states including multi-leptonic states, hadronically decaying τ s, tagged b jets and other hadronic jets. In all, we analyze more than 40 such lepton plus jet and missing energy signatures along with several kinematical signatures such as missing transverse momentum, effective mass, and invariant mass distributions of final state observables. It is shown that a composite analysis can produce significant discrimination among sparticle mass patterns allowing for a possible identification of the source of soft breaking. While the analysis given is for supergravity models, the techniques based on mass pattern analysis are applicable to wide class of models including string and brane models.

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“…We discuss some prominent signatures below. (Some recent analyses of signatures can be found in [45,46,47,48,49,50,51,52,53,54,55,56,57,58]). The first of these is the excess of trileptonic events [59] at colliders.…”

Section: Implications Of High Scale Models At the Electroweak Scalementioning

confidence: 99%

High Scale Physics Connection to LHC Data

Nath¹

2011

Predicted and Totally Unexpected in the Energy Frontier Opened by LHC

0

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The existing data appears to provide hints of an underlying high scale theory. These arise from the gauge coupling unification, from the smallness of the neutrino masses, and via a non-vanishing muon anomaly. An overview of high scale models is given with a view to possible tests at the Large Hadron Collider. Specifically we discuss here some generic approaches to deciphering their signatures. We also consider an out of the box possibility of a four generation model where the fourth generation is a mirror generation rather than a sequential generation. Such a scenario can lead to some remarkably distinct signatures at the LHC.

show abstract

“…We discuss some prominent signatures below. (Some recent analyses of signatures can be found in [45,46,47,48,49,50,51,52,53,54,55,56,57,58]). The first of these is the excess of trileptonic events [59] at colliders.…”

Section: Missing Link Are Sparticlesmentioning

confidence: 99%

High Scale Physics Connection to LHC Data

Nath

¹

2010

Int. J. Mod. Phys. A

0

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The existing data appears to provide hints of an underlying high scale theory. These arise from the gauge coupling unification, from the smallness of the neutrino masses, and via a non-vanishing muon anomaly. An overview of high scale models is given with a view to possible tests at the Large Hadron Collider. Specifically we discuss here some generic approaches to deciphering their signatures. We also consider an out of the box possibility of a four generation model where the fourth generation is a mirror generation rather than a sequential generation. Such a scenario can lead to some remarkably distinct signatures at the LHC.

show abstract

Extending SUSY reach at the CERN large hadron collider using b-tagging

Cited by 7 publications

References 9 publications

Sparticles at the LHC

Sparticles at the LHC

High Scale Physics Connection to LHC Data

High Scale Physics Connection to LHC Data

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