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Title: Right-chiral sneutrinos and long-lived staus: Event characteristics at the CERN Large Hadron Collider

Abstract

We investigate the signals of a supersymmetric scenario where the lighter tau-sneutrino is the lightest supersymmetric particle, while the lighter stau-state is the next lightest. We confirm that such a scenario can be motivated within the framework of minimal supergravity, with just the addition of a right-chiral neutrino superfield. Such a spectrum leads to rather unusual signals of supersymmetry, showing stable tracks of the stau in the muon chambers. We have studied two types of signals, namely (a) two or more hard jets and two stau tracks, and (b) hard jets with two muons and two stau tracks. We demonstrate that the stau tracks can be distinguished from the muonic ones through proper kinematic cuts which also enable one to remove all standard model backgrounds.

Authors:
; ;  [1]
  1. Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad - 211 019 (India)
Publication Date:
OSTI Identifier:
21020301
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.75.075007; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CERN LHC; CHIRALITY; JET MODEL; MUONS; NEUTRINOS; SPARTICLES; STANDARD MODEL; SUPERGRAVITY; SUPERSYMMETRY

Citation Formats

Gupta, Sudhir Kumar, Mukhopadhyaya, Biswarup, and Rai, Santosh Kumar. Right-chiral sneutrinos and long-lived staus: Event characteristics at the CERN Large Hadron Collider. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.075007.
Gupta, Sudhir Kumar, Mukhopadhyaya, Biswarup, & Rai, Santosh Kumar. Right-chiral sneutrinos and long-lived staus: Event characteristics at the CERN Large Hadron Collider. United States. doi:10.1103/PHYSREVD.75.075007.
Gupta, Sudhir Kumar, Mukhopadhyaya, Biswarup, and Rai, Santosh Kumar. Sun . "Right-chiral sneutrinos and long-lived staus: Event characteristics at the CERN Large Hadron Collider". United States. doi:10.1103/PHYSREVD.75.075007.
@article{osti_21020301,
title = {Right-chiral sneutrinos and long-lived staus: Event characteristics at the CERN Large Hadron Collider},
author = {Gupta, Sudhir Kumar and Mukhopadhyaya, Biswarup and Rai, Santosh Kumar},
abstractNote = {We investigate the signals of a supersymmetric scenario where the lighter tau-sneutrino is the lightest supersymmetric particle, while the lighter stau-state is the next lightest. We confirm that such a scenario can be motivated within the framework of minimal supergravity, with just the addition of a right-chiral neutrino superfield. Such a spectrum leads to rather unusual signals of supersymmetry, showing stable tracks of the stau in the muon chambers. We have studied two types of signals, namely (a) two or more hard jets and two stau tracks, and (b) hard jets with two muons and two stau tracks. We demonstrate that the stau tracks can be distinguished from the muonic ones through proper kinematic cuts which also enable one to remove all standard model backgrounds.},
doi = {10.1103/PHYSREVD.75.075007},
journal = {Physical Review. D, Particles Fields},
number = 7,
volume = 75,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2007},
month = {Sun Apr 01 00:00:00 EDT 2007}
}