Production of colored scalar particles in <Emphasis Type="Italic">pp</Emphasis> collisions and masses of scalar gluons from future LHC data

The production of pairs of scalar particles belonging to an arbitrary color multiplet of the SU _c (3) group in proton-proton collisions is considered, and the differential and total cross sections for the corresponding partonic processes are obtained. The total cross section for the production of octets of scalar gluons F ₁ and F ₂ at LHC is calculated versus their mass, and their dominant decays, which are necessary for their searches, are discussed. It is shown that, for mF ₁ ≲ 1000 GeV, the number of signal $ t\tilde tb\tilde b $ t\tilde tb\tilde b events fromthe decays of the scalar gluon F ₁ may exceed substantially (by not less than three standard deviations) the Standart Model background and that the cross section for the production of scalar gluons F ₁ and F ₂ having masses in the region m _F1,m _F2 ≲ 1300 GeV may be sufficient for the efficient (N _events ≲ 100–1000 at L = 10–100 fb⁻¹) production of these particles at LHC.