The LHC (CMS) Discovery Potential for Models with Effective Supersymmetry and Nonuniversal Gaugino Masses

Abstract

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations of squarks are heavy. We consider the general case of nonuniversal gaugino masses. Visibility of signal by an excess over SM background in (n \geq 2)jets + (m \geq 0)leptons + E^{miss}_T events depends rather strongly on the relation between LSP, second neutralino, gluino and squark masses and it decreases with the increase of LSP mass. We find that for relatively heavy gluino it is very difficult to detect SUSY signal even for light 3^{rd} generation squarks (m_{\tilde q_3}\le 1 TeV) if the LSP mass is closed to the 3^{rd} generation squark mass.

1 latex (35 pages), 4 eps (figures) files

References in corpus (2)

• Impact of Physical Principles at Very High Energy Scales on the Superparticle Mass Spectrum
• LHC Signature of the Minimal SUGRA Model with a Large Soft Scalar Mass

Cited by in corpus (13)

• Updated Reach of the CERN LHC and Constraints from Relic Density, b->s gamma and a(mu) in the mSUGRA Model
• TeV gamma-rays and the largest masses and annihilation cross sections of neutralino dark matter
• Neutralino Dark Matter, b-tau Yukawa Unification and Non-Universal Sfermion Masses
• Discovering anomaly-mediated supersymmetry at the LHC
• Non-universal gaugino masses: a signal-based analysis for the Large Hadron Collider
• Non-universal Gaugino mass models under the lamppost of muon (g-2)
• Gaugino mass non-universality in an SO(10) supersymmetric Grand Unified Theory: low-energy spectra and collider signals
• LHC signature of supersymmetric models with non-universal sfermion masses
• Supersymmetry without a light Higgs boson at the LHC
• Signatures of gaugino mass non-universality in cascade Higgs production at the LHC
• Non-universal scalar masses: a signal-based analysis for the Large Hadron Collider
• Probing non-universal gaugino masses via Higgs boson production under SUSY cascades at the LHC: A detailed study
• The MSSM with Large Gluino Mass