Reconstruction of the left-chiral tau-sneutrino in supersymmetry with a right-sneutrino as the lightest supersymmetric particle

Abstract

We have considered a supersymmetric scenario in which the minimal supersymmetric standard model is augmented with a right-chiral neutrino superfield for each generation. Such a scenario can have a lightest supersymmetric particle (LSP) dominated by the right-chiral sneutrino state and the lighter stau as the next-to-lightest supersymmetric particle (NLSP). This can easily be motivated by assuming a high scale framework of supersymmetry breaking like minimal supergravity (mSUGRA). Due to the extremely small neutrino Yukawa coupling, the decay of the NLSP to the LSP is suppressed and consequently the NLSP, here the lighter stau mass eigenstate, becomes stable at the length scale of the detector. The collider signal in this case consists of charged tracks of massive stable particles in the muon chamber. Following up on our earlier studies on neutralino and chargino reconstruction in such a scenario, we have shown the kinematical information obtained from these charged tracks allows us to reconstruct the left-chiral tau-sneutrino as well over a significant region of the mSUGRA parameter space. Two methods for reconstruction are suggested and their relative merits are discussed.

arXiv comment18 pages, 7 figures and 5 tables

References in corpus (36)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• A Supersymmetry Primer
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• SuSpect: a Fortran Code for the Supersymmetric and Higgs Particle Spectrum in the MSSM
• Superweakly Interacting Massive Particles
• SuperWIMP Dark Matter Signals from the Early Universe
• ISAJET 7.37: A Monte Carlo Event Generator for $pp$, $\bar{p}p$, and $e^{+}{e}^{-}$ Interactions
• Stable Massive Particles at Colliders
• Experimental Signatures of Low Energy Gauge Mediated Supersymmetry Breaking
• Supergravity with a Gravitino LSP
• Gravitino Dark Matter in the CMSSM
• Searching for H --> tau tau in weak boson fusion at the LHC
• Prospects for the Search for a Standard Model Higgs Boson in ATLAS using Vector Boson Fusion
• Right-Handed Sneutrino as Cold Dark Matter
• Sparticle Spectrum Constraints
• Signals for gauge-mediated supersymmetry breaking models at the CERN LEP2 collider
• Tevatron Signatures of Long-lived Charged Sleptons in Gauge-Mediated Supersymmetry Breaking Models
• Right-Handed Sneutrino as Cold Dark Matter of the Universe
• Updated Constraints on the Minimal Supergravity Model
• Prospects to study a long-lived charged next lightest supersymmetric particle at the LHC
• Long life stau in the minimal supersymmetric standard model
• A new signature for gauge mediated supersymmetry breaking
• Right-chiral sneutrinos and long-lived staus: event characteristics at the Large Hadron Collider
• Scalar Top Quark as the Next-to-Lightest Supersymmetric Particle
• Scalar tau Signal at LEP 2 in models with Gauge Mediated Supersymmetry Breaking
• Supersymmetry in Elementary Particle Physics
• Neutralino reconstruction in supersymmetry with long-lived staus
• Analysis of Long-Lived Slepton NLSP in GMSB model at Linear Collider
• Multilepton signatures of gauge mediated SUSY breaking at LEPII
• Right sneutrinos and the signals of a stable stop at the Large Hadron Collider
• Lepton flavour violation in future linear colliders in the long-lived stau NLSP scenario
• Production of Long-Lived Sleptons at LHC
• Chargino reconstruction in supersymmetry with long-lived staus

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