Top Spin Correlations in Theories with Large Extra-Dimensions at the Large Hadron Collider

Abstract

In theories with large extra dimensions, we study the top spin correlations at the Large Hadron Collider. The s-channel process mediated by graviton Kaluza-Klein modes contributes to the top-antitop pair production in addition to the Standard Model processes, and affects the resultant top spin correlations. We calculated the full density matrix for the top-antitop pair production. With the fundamental scale of the extra dimensional theory below 2 TeV, we find a sizable deviation of the top spin correlations from the Standard Model one.

arXiv comment18 pages, 16 figures, a few typos have been corrected, the final version to be appear in PRD

References in corpus (21)

• A Large Mass Hierarchy from a Small Extra Dimension
• An Alternative to Compactification
• The Hierarchy Problem and New Dimensions at a Millimeter
• New Dimensions at a Millimeter to a Fermi and Superstrings at a TeV
• Observation of Top Quark Production in Pbar-P Collisions
• Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions
• Quantum Gravity and Extra Dimensions at High-Energy Colliders
• On Kaluza-Klein States from Large Extra Dimensions
• Top quark pair production and decay at hadron colliders
• Angular Correlations in Top Quark Pair Production and Decay at Hadron Colliders
• Top quark spin correlations at hadron colliders: Predictions at next-to-leading order QCD
• Maximizing Spin Correlations in Top Quark Pair Production at the Tevatron
• Spin Correlations in Top-Quark Pair Production at $e^{+}{e}^{-}$ Colliders
• Spin Correlation in Top-Quark Production at Hadron Colliders
• Getting to the top with extra dimensions
• Spin-Spin Correlations of Top Quark Pairs at Hadron Colliders
• Diphoton Signals for Large Extra Dimensions at the Tevatron and CERN LHC
• On the Observation of Top Spin Correlation Effect at Tevatron
• Large Extra Dimension Effects on the Spin Configuration of the Top Quark Pair at e^+ e^- Colliders
• Spin configuration of top quark pair production with large extra dimensions at photon-photon colliders
• On the generalized Miura transformation

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