Collider Signals of Maximal Flavor Violation: Same-Sign Leptons from Same-Sign Tops at the Tevatron

Abstract

In models of maximal flavor violation (MxFV) there is at least one new scalar ${\Phi }_{FV}$ which couples to the quarks via ${\Phi }_{FV}{q}_i{q}_j\propto {\xi }_{ij}$ where ${\xi }_{i3},{\xi }_{3i}\sim V_{tb}$ for $i=1,2$ and ${\xi }_{33}\sim V_{td}$ and $V$ is the CKM matrix. In this article, we explore the potential phenomenological implications of MxFV for collider experiments. We study MxFV signals of same-sign leptons from same-sign top-quark pair production at the Tevatron and at the LHC. We show that the current Tevatron dataset has strong sensitivity to this signature, for which there are no current limits. For example, if $m_{{\Phi }_{FV}}\sim 200$ GeV and the MxFV coupling $\xi$ has a natural value of $\sim 1$, we expect $\sim 12$ MxFV events to survive a selection requiring a pair of same-sign leptons, a tagged $b$-jet and missing transverse energy, over a background of approximately 4-5 events.

revtex, 4 pages, 3 figures

References in corpus (9)

• A Unified Approach to the Classical Statistical Analysis of Small Signals
• High-Energy-Physics Event Generation with PYTHIA 6.1
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s}=1.96 TeV using Lepton + Jets Events with Secondary Vertex b-tagging
• Measurements of Inclusive W and Z Cross Sections in p-pbar Collisions at sqrt{s} =1.96 TeV
• Measurement of the ttbar Production Cross Section in ppbar collisions at sqrt{s} = 1.96 TeV using Lepton+Jets Events with Jet Probability b-tagging
• Inclusive Search for New Physics with Like-Sign Dilepton Events in ppbar Collisions at sqrt{s} = 1.96 TeV
• Models and Phenomenology of Maximal Flavor Violation
• Inclusive Search for Anomalous Production of High-pT Like-Sign Lepton Pairs in Proton-Antiproton Collisions at sqrt{s}=1.8 TeV

Cited by in corpus (15)

• Simplified Models for LHC New Physics Searches
• Top quark forward-backward asymmetry from new t-channel physics
• Explorations of the Top Quark Forward-Backward Asymmetry at the Tevatron
• Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at sqrt(s) = 7 TeV
• On Models of New Physics for the Tevatron Top A_FB
• Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC
• Rare Top Decays as Probes of Flavorful Higgs Bosons
• Color Sextet Vector Bosons and Same-Sign Top Quark Pairs at the LHC
• A Revisit to Top Quark Forward-Backward Asymmetry
• Flavor violating signatures of lighter and heavier Higgs bosons within the Two Higgs Doublet Model Type-III at the LHeC
• Search for Maximal Flavor Violating Scalars in Same-Charge Lepton Pairs in $p\bar{p}$ Collisions at $\sqrt{s}=1.96$ TeV
• Top Quark Forward-Backward Asymmetry and Anomalous Right-Handed Charge Currents
• Same-sign top pair production in an extra-dimension model of flavor at the CERN Large Hadron Collider
• SPICE: Simulation Package for Including Flavor in Collider Events
• Three-Body Decays of Sleptons with General Flavor Violation and Left-Right Mixing