Color Sextet Scalars at the CERN Large Hadron Collider

Details Color Sextet Scalars at the CERN Large Hadron Collider Color Sextet Scalars at the CERN Large Hadron Collider

2008-11-13

arxiv.org/abs/0811.2105v2

Phys.Rev.D79:054002,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 7 figures

Scientific paper

10.1103/PhysRevD.79.054002

Taking a phenomenological approach, we study a color sextet scalar at the LHC. We focus on the QCD production of a color sextet pair \Phi_6\bar{\Phi}_{6} through gg fusion and q\bar{q} annihilation. Its unique coupling to \bar{\psi^c}\psi allows the color sextet scalar to decay into same-sign diquark states, such as \Phi_6\to tt/tt^*. We propose a new reconstruction in the multijet plus same sign dilepton with missing transverse energy samples to search for on-shell tt\bar{t}\bar{t} 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^-1 integrated luminosity.

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