2011/01/31 by Moira I. Gresham, Ian-Woo Kim, Kathryn M. Zurek · 49 citations
Chemistry · Physics and Astronomy · #Asymmetry #Chemistry #Coupling (piping) #Flavor #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #Sigma #Tevatron #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.84.034025
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 84(3) (American Physical Society) · 24 pages, 9 figures, revtex 4
arxiv created 2011/01/31 · openalex publication_date 2011/08/12 · arxiv updated 2015/03/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study new top flavor violating resonances that are singly produced in association with a top at the LHC. Such top flavor violating states could be responsible for the Tevatron top forward-backward asymmetry. Since top flavor violating states can directly decay to a top (or antitop) and jet, and are produced in conjunction with another (oppositely charged) top, the direct signature of such states is a tj (or tj) resonance in ttj events. In general, these states can be very light and have O(1) couplings to the top sector so that they are copiously produced. We present a search strategy and estimate the discovery potential at the early LHC by implementing the strategy on simulated data. For example, with 1 fb^\ensuremath-1 at 7 TeV, we estimate that a W^\ensuremath' coupling to dRtR can be constrained at the 3\ensuremathσ level for gR=1 and m_W^\ensuremath'=200 GeV, weakening to gR=1.75 for m_W^\ensuremath'=600 GeV. With the search we advocate here, a bound at a similar level could be obtained for top flavor violating Z^\ensuremath's, as well as triplet and sextet diquarks.