On the possibility of light string resonances at the LHC and Tevatron from Randall-Sundrum throats

Abstract

In string realizations of the Randall-Sundrum scenario, the higher-spin Regge excitations of Standard Model states localized near the IR brane are warped down to close to the TeV scale. We argue that, as a consequence of the localization properties of Randall-Sundrum models of flavour, the lightest such resonance is the spin-3/2 excitation of the right-handed top quark over a significant region of parameter space. A mild accidental cancellation allows this resonance to be as light or lighter than the Kaluza-Klein excitations of the Standard Model states. We consider from a bottom-up effective theory point of view the production and possible observability of such a spin-3/2 excitation at the LHC and Tevatron. Current limits are weaker than might be expected because of the excess of WWjj events at the Tevatron reported by CDF for an invariant mass of 400-500 GeV.

arXiv comment17 pages, 6 figures Version published in JHEP with minor corrections

References in corpus (43)

• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• Large N Field Theories, String Theory and Gravity
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Hierarchies from Fluxes in String Compactifications
• Bulk Fields and Supersymmetry in a Slice of AdS
• Gravity Duals of Supersymmetric SU(N) x SU(N+M) Gauge Theories
• Flavor Structure of Warped Extra Dimension Models
• Flavor violation and warped geometry
• Flavor Physics in the Randall-Sundrum Model: I. Theoretical Setup and Electroweak Precision Tests
• Dynamics of warped compactifications and the shape of the warped landscape
• TeV Strings and Collider Probes of Large Extra Dimensions
• Delta F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection
• Holography and the Electroweak Phase Transition
• Quantization of an interacting spin-3/2 field and the Delta isobar
• Field theory of nucleon to higher-spin baryon transitions
• Baryons from Quarks in the $1/N$ Expansion
• Quark Singlets: Implications and Constraints
• Dijet signals for low mass strings at the LHC
• The LHC String Hunter's Companion
• Flavor Violation Tests of Warped/Composite SM in the Two-Site Approach
• Baryon Magnetic Moments in a Simultaneous Expansion in $1/N$ and $m_s$
• Building Models Of Gauge Mediated Supersymmetry Breaking Without A Messenger Sector
• Small Numbers from Tunneling Between Brane Throats
• Pair production of heavy Q=2/3 singlets at LHC
• The Throat as a Randall-Sundrum Model with Goldberger-Wise Stabilization
• The Ubiquitous Throat
• Jet signals for low mass strings at the LHC
• Direct photons as probes of low mass strings at the LHC
• Multi-Localization in Multi-Brane Worlds
• Open String Wavefunctions in Warped Compactifications
• Generating Small Numbers by Tunneling in Multi-Throat Compactifications
• Warped Deformed Throats have Faster (Electroweak) Phase Transitions
• Decay widths of lowest massive Regge excitations of open strings
• Spin 3/2 Beyond the Rarita-Schwinger Framework
• Prospects for top-prime quark discovery at the Tevatron
• Comments on the high-$Q^2$ HERA anomaly
• Probing the Geometry of Warped String Compactifications at the LHC
• Holographic dual of the Standard Model on the throat
• Bulk fields in AdS_5 from probe D7 branes
• Phenomenology of Infrared Smooth Warped Extra Dimensions
• Production and decay of single heavy spin-3/2 leptons in high energy electron-positron collisions
• Bounds on the electromagnetic interactions of excited spin-3/2 leptons

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• Top Quarks as a Window to String Resonances
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• String Resonances at Hadron Colliders
• Randall-Sundrum and Strings
• Effect of spin-3/2 top quark excitation on ttbar production at the LHC
• Single Top Production as a Probe of Heavy Resonances
• Search for pair production of excited top quarks in the lepton + jets final state
• Tensor Reggeons from Warped Space at the LHC
• Searching for string resonances in e^+e^- and γγcollisions
• Minimal Spin-3/2 Dark Matter in a simple $s$-channel model
• Search for spin-3/2 quarks at the Large Hadron Collider
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• Detectability of the second resonance of low-scale string models at the LHC
• LHC Phenomenology of Lowest Massive Regge Recurrences in the Randall-Sundrum Orbifold
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