2008/11/30 by Chuan-Ren Chen, William Klemm, Vikram Rentala +1 · 7 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.79.054002
published as Phys.Rev.D79:054002,2009 · 13 pages, 7 figures
arxiv created 2009/02/07 · openalex publication_date 2009/03/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Taking a phenomenological approach, we study a color sextet scalar at the LHC. We focus on the QCD production of a color sextet pair \ensuremathΦ6\ensuremathΦ6 through gg fusion and qq annihilation. Its unique coupling to \ensuremathψc\ensuremathψ allows the color sextet scalar to decay into same-sign diquark states, such as \ensuremathΦ6\ensuremath→tt/tt*. We propose a new reconstruction in the multijet plus same-sign dilepton with missing transverse energy samples (bb+\ensuremathℓ^\ifmmode±\else\textpm\fi\ensuremathℓ^\ifmmode±\else\textpm\fi+\mathrmE\ensuremath\llap\not T+Nj, N\ensuremath≥6) to search for on-shell tttt final states from sextet scalar pair production. Thanks to the large QCD production, the search covers the sextet mass range up to 1 TeV for 100 fb^\ensuremath-1 integrated luminosity.