2008/03/26 by Shaouly Bar-Shalom, Arvind Rajaraman, Daniel Whiteson +3 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.78.033003
published as Phys.Rev.D78:033003,2008 · revtex, 4 pages, 3 figures
arxiv created 2008/03/26 · openalex publication_date 2008/08/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In models of maximal flavor violation (MxFV) suggested in [S. Bar-Shalom and A. Rajaraman, Phys. Rev. D 77, 095011 (2008).] there is at least one new scalar \ensuremathΦFV which couples to the quarks via \ensuremathΦFVqiqj\ensuremath∝\ensuremathξij where \ensuremathξi3,\ensuremathξ3i\ensuremath∼Vtb for i=1, 2 and \ensuremathξ33\ensuremath∼Vtd 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 data set has strong sensitivity to this signature, for which there are no current limits. For example, if m_\ensuremathΦFV\ensuremath∼200 GeV and the MxFV coupling \ensuremathξ has a natural value of \ensuremath∼1, we expect \ensuremath∼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.