Chiral color quark symmetry and possible constraints on the G′-boson mass from tevatron and LHC data

• Published in: Physics of atomic nuclei 2012-03, Vol.75 (3), p.321-333
• Main Authors: Martynov, M. V., Smirnov, A. D.
• Format: Article
• Language: English
• Subjects: Analysis; Collisions (Nuclear physics); Elementary Particles and Fields; Particle accelerators; Particle and Nuclear Physics; Physics; Physics and Astronomy
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S1063778812020147

A gauge model featuring a chiral color symmetry of quarks was considered, and possible manifestations of this symmetry in proton-antiproton and proton-proton collisions at the Tevatron and LHC energies were studied. The cross section for the production of quark pairs at the Tevatron and the forward-backward asymmetry in this process were calculated and analyzed with allowance for the contributions of the G ′-boson predicted by the chiral color symmetry of quarks, the G ′-boson mass m G ′ and the mixing angle θ G being treated as free parameters of the model. Limits on m G ′ versus θ G were studied on the basis of data from the Tevatron on and , and the region compatible with these data within one standard deviation was found in the m G ′ - θ G plane. The region of m G ′ -mass values that is appropriate for observing the G ′-boson at LHC is discussed.