ar X iv : h ep - p h / 93 05 25 8 v 1 1 2 M ay 1 99 3 Revenge of the One - Family Technicolor Models

ar X iv : h ep - p h / 93 05 23 2 v 1 1 0 M ay 1 99 3 Walking Technicolor and the Zbb̄ Vertex

A slowly-running technicolor coupling will affect the size of non-oblique corrections to the Zb ¯ b vertex from extended technicolor dynamics. We show that while " walking technicolor " reduces the magnitude of the corrections, they generally remain large enough to be seen at LEP.

ar X iv : h ep - p h / 93 05 29 8 v 1 2 1 M ay 1 99 3 CHIRAL PERTURBATION THEORY

The basic ideas and power counting rules of chiral perturbation theory are discussed. The formalism of velocity dependent fields for baryons, and for hadrons containing a heavy quark, is explained. UCSD/PTH 93-12 hep-ph/9305298 May 1993

ar X iv : h ep - t h / 93 05 10 4 v 1 2 1 M ay 1 99 3 The role of mathematics in contemporary theoretical physics ∗

ar X iv : h ep - p h / 98 05 30 4 v 1 1 3 M ay 1 99 8 Λ b → Λ c P ( V ) Nonleptonic Weak Decays

ar X iv : h ep - p h / 95 05 31 3 v 1 1 5 M ay 1 99 5 BUHEP - 95 - 18 Technipion contribution to b → sγ

We show that the present limit on the inclusive decay b → sγ provides strong constraints on Technicolor models. In particular, small values of F π and the mass of charged octet and singlet technipions are excluded, assuming the most natural form of the techni-pion coupling to the ordinary quarks.