Fermilab Tevatron mass limits for heavy quarks decaying via flavor-changing neutral currents
Fermilab Tevatron mass limits for heavy quarks decaying via flavor-changing neutral currents
The dimuon and dielectron data from the Fermilab Tevatron $\overline{p}p$ collider are used to probe for heavy quarks, which decay dominantly via flavor-changing neutral currents (FCNC's). Depending on whether the FCNC decay occurs at the tree or loop level, one gets a lower mass limit of 85 or 75 GeV. …