On mass limit for chiral color symmetry $G'$-boson from Tevatron data on
  $t \bar{t}$ production

research

On mass limit for chiral color symmetry $G'$ -boson from Tevatron data on $t \bar{t}$ production

The contributions of

G'

-boson predicted by the chiral color symmetry of quarks to the cross section

\sigma_{t\bar{t}}

and to the forward-backward asymmetry

A_{\rm FB}^{p \bar p}

of

t\bar{t}

production at the Tevatron are calculated with account of the difference of the strengths of the

\bar q q G

and

\bar q q G'

interactions. The results are analysed in dependence on two free parameters of the model, the mixing angle

\theta_G

and

G'

mass

m_{G'}

. The

G'

-boson contributions to

\sigma_{t\bar{t}}

and

A_{\rm FB}^{p \bar p}

are shown to be consistent with the Tevatron data on

\sigma_{t\bar{t}}

and

A_{\rm FB}^{p \bar p}

, the allowed region in the

m_{G'} - \theta_G

plane is discussed and around

m_{G'}=1.2 \, TeV, \; \theta_G=14^\circ

the region of

1 \sigma

consistency is found.Comment: 9 pages, 1 figure, misprints in formula (14) are corrected, all the other results are vali

Last time updated on 03/01/2020