Color Sextet Scalars in Early LHC Experiments

Edmond L. Berger, Qing-Hong Cao, Chuan-Ren Chen, Gabe Shaughnessy, and Hao Zhang

Phys. Rev. Lett. 105, 181802 – Published 27 October 2010

Abstract

We explore the potential for discovery of an exotic color sextet scalar in same-sign top quark pair production in early running at the LHC. We present the first phenomenological analysis at colliders of color sextet scalars with full top quark spin correlations included. We demonstrate that one can measure the scalar mass, the top quark polarization, and confirm the scalar resonance with $1 {fb}^{- 1}$ of integrated luminosity. The top quark polarization can distinguish gauge triplet and singlet scalars.

Received 19 May 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.181802

Authors & Affiliations

Edmond L. Berger¹, Qing-Hong Cao^1,2, Chuan-Ren Chen³, Gabe Shaughnessy^1,4, and Hao Zhang^2,5

¹High Energy Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
²Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
³Institute for Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8568, Japan
⁴Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
⁵Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

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Vol. 105, Iss. 18 — 29 October 2010

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