LHC constraints on color octet scalars

2017/03/31 by Alper Hayreter, German Valencia, G. Valencia
Computer Science · Mathematics · Physics and Astronomy · #Atlas (anatomy) #Computer science #Coupling (piping) #Coupling constant #Distributed and Parallel Computing Systems #Geometry #High-Energy Particle Collisions Research #Large Hadron Collider #Mathematics #Octet #Overline #Pair production #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Space (punctuation) #Tevatron #hep-ph

paper · pdf · doi:10.1103/physrevd.96.035004

published as Phys. Rev. D 96, 035004 (2017) · 16 pages, 9 figures (matches version accepted)

arxiv created 2017/07/25 · openalex publication_date 2017/08/09 · arxiv updated 2017/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We extract constraints on the parameter space of the Manohar and Wise model by comparing the cross sections for dijet, top-pair, dijet-pair, tttt and bbbb productions at the LHC with the strongest available experimental limits from ATLAS or CMS at 8 or 13 TeV. Overall we find mass limits around 1 TeV in the most sensitive regions of parameter space, and lower elsewhere. This is at odds with generic limits for color octet scalars often quoted in the literature where much larger production cross sections are assumed. The constraints that can be placed on coupling constants are typically weaker than those from existing theoretical considerations, with the exception of the parameter \ensuremathη_D.

Citations

• Flavor changing neutral currents, an extended scalar sector, and the Higgs production rate at the CERN Large Hadron Collider
• Color octet scalar production at the CERN LHC
• UFO – The Universal FeynRules Output
• Higgs underproduction at the LHC
• FeynRules – Feynman rules made easy