Dynamical R-parity Breaking at the LHC

Abstract

In a class of extensions of the minimal supersymmetric standard model with (B-L)/left-right symmetry that explains the neutrino masses, breaking R-parity symmetry is an essential and dynamical requirement for successful gauge symmetry breaking. Two consequences of these models are: (i) a new kind of R-parity breaking interaction that protects proton stability but adds new contributions to neutrinoless double beta decay and (ii) an upper bound on the extra gauge and parity symmetry breaking scale which is within the large hadron collider (LHC) energy range. We point out that an important prediction of such theories is a potentially large mixing between the right-handed charged lepton ($e^c$) and the superpartner of the right-handed gauge boson (${\tilde{W}}_R^{+}$), which leads to a brand new class of R-parity violating interactions of type ${\widetilde{{\mu }^c}}^{†}{\nu }_{\mu }^c{e}^c$ and $\widetilde{d^c}^\dagger\u^c e^c$. We analyze the relevant constraints on the sparticle mass spectrum and the LHC signatures for the case with smuon/stau NLSP and gravitino LSP. We note the "smoking gun" signals for such models to be lepton flavor/number violating processes: $pp\to {\mu }^{\pm }{\mu }^{\pm }{e}^{+}{e}^{-}jj$ (or ${\tau }^{\pm }{\tau }^{\pm }{e}^{+}{e}^{-}jj$) and $pp\to {\mu }^{\pm }{e}^{\pm }b\bar{b}jj$ (or ${\tau }^{\pm }{e}^{\pm }b\bar{b}jj$) without significant missing energy. The predicted multi-lepton final states and the flavor structure make the model be distinguishable even in the early running of the LHC.

30 pages, 13 figures, 6 tables, reference added

References in corpus (28)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• R-parity violating supersymmetry
• Automatic Generation of Tree Level Helicity Amplitudes
• Inclusive Jet Production, Parton Distributions, and the Search for New Physics
• Distinguishing seesaw models at LHC with multi-lepton signals
• General CP Violation in Minimal Left-Right Symmetric Model and Constraints on the Right-Handed Scale
• Double beta decay in left-right symmetric models
• Minimal gauged U(1)_{B-L} model with spontaneous R-parity violation
• $R$-parity-Violating Supersymmetric Yukawa Couplings: A Mini-review
• Decaying Dark Matter in Light of the PAMELA and Fermi LAT Data
• Antimatter Signatures of Gravitino Dark Matter Decay
• Spontaneous R-Parity Breaking and Left-Right Symmetry
• The Higgs sector of a supersymmetric left-right model
• Upper bound on the $W_R$ mass in automatically R-conserving SUSY models
• Minimal Supersymmetric Left-Right Model with Automatic R Parity
• Supersymmetric Left-Right Model and its Tests in Linear Colliders
• Probing bilinear R-parity violating supergravity at the LHC
• TeV Scale Left Right Symmetry and Flavor Changing Neutral Higgs Effects
• Probing Gravitino Dark Matter with PAMELA and Fermi
• R-Parity Breaking via Type II Seesaw, Decaying Gravitino Dark Matter and PAMELA Positron Excess
• Broken R-Parity in the Sky and at the LHC
• Resonant sneutrino production in Supersymmetry with R-parity violation at the LHC
• MSSM in view of PAMELA and Fermi-LAT
• All Possible Lightest Supersymmetric Particles in R-Parity Violating Minimal Supergravity Models
• Signatures of Spontaneous Breaking of R-Parity in Gluino Cascade Decays at LHC
• Single production of sleptons with polarized tops at the Large Hadron Collider

Cited by in corpus (7)

• Naturally Light Sterile Neutrinos from Theory of R-parity
• "L=R" -- $U(1{)}_R$ Lepton Number at the LHC
• Do new data on [B+ -> tau+ nu_tau] decays point to an early discovery of supersymmetry at the LHC?
• Boosted Multijet Resonances and New Color-Flow Variables
• Chargino and neutralino production at the Large Hadron Collider in left-right supersymmetric models
• Can Flavor Physics Hint at Distinctive Signals for R-parity Violation at the LHC?
• Indian Contributions to LHC Theory