Low-scale technicolor at the Tevatron

In multiscale models of walking technicolor, relatively light color-singlet technipions are produced in qq annihilation in association with longitudinal W and Z bosons and with each other. The technipions decay as πT0 → bb and πT+ → cb. Their production rates are resonantly enhanced by isovector technirho vector mesons with mass MW + MπT ≲ MϱT ≲ 2MπT. At the Tevatron, these associated production rates are 1–10 picobarns for MπT ⋍ 100 GeV. Such a low mass technipion requires topcolor-assisted technicolor to suppress the decay t → πT+b. Searches for πTπT production will also be rewarding. Sizable rates are expected if MϱT ≳ 2MπT + 10 GeV. The isoscalar ωT is nearly degenerate with ϱT and is expected to be produced at roughly the same rate. The ωT should have the distinctive decay modes ωT → γπT0 and ZπT0.