The chiral color symmetry and g -boson mass limit from new tevatron data on tt production

Abstract


A gauge model with chiral color symmetry of quarks is considered and possible effects of
the color G -boson octet predicted by this symmetry are investigated. The contributions
of the G -boson to the cross section σtt and to the forward-backward asymmetry App
of tt production at the Tevatron are calculated and analysed in dependence on two free
parameters of the model, the mixing angle θG and G mass mG , in comparision with
the new Tevatron data on App . The G -boson contributions to σtt and App are shown
to be consistent with the Tevatron data on σtt and App , the allowed region in the
-θG
consistency is found.

About the authors

Mikhail V Martynov

P. G. Demidov Yaroslavl State University, Faculty of Physics

Email: martmix@mail.ru
младший научный сотрудник, каф. теоретической физики (научно-исследовательский сектор); Ярославский государственный университет им. П. Г. Демидова,физический факультет; P. G. Demidov Yaroslavl State University, Faculty of Physics

Alexander D Smirnov

P. G. Demidov Yaroslavl State University, Faculty of Physics

Email: asmirnov@uniyar.ac.ru
(д.ф.-м.н., проф.), профессор, каф. теоретической физики; Ярославский государственный университет им. П. Г. Демидова,физический факультет; P. G. Demidov Yaroslavl State University, Faculty of Physics

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