Heavy chiral bosons search at hadron colliders

Abstract

The production of new spin-1 chiral bosons at the hadron colliders, the Fermilab Tevatron and the CERN LHC, is considered. The masses of the chiral bosons can be determined on the basis of experimental data of precise low-energy experiments, which already indicate indirectly their existence. They can explain, for example, the serious 4.5 sigma discrepancy between the measured and the predicted two pion branching ratio of the tau decay and the sign of the 3.3 sigma deviation of the muon (g-2) theoretical prediction from the experimental value. Quantitative evaluations of the various differential cross-sections of the chiral boson production at hadron colliders are made using the CalcHEP package. It is noteworthy that the Tevatron data already hint the existence of the lightest charged chiral boson with a mass around 500 GeV. New Tevatron data and the LHC results will definitely confirm or reject this indication. In the positive case the LHC would be able to discover all predicted charged and neutral chiral bosons spanning in mass up to 1 TeV.