TTP93-14 Tau Kinematics from Impact Parameters

TTP93-14 Tau Kinematics from Impact Parameters

TTP93-14 Tau Kinematics from Impact Parameters

The momenta of $\tau$ decay products in the reaction $e^+e^-\to\tau^+\tau^-$ do not constrain the $\tau$ direction unambiguously. It is shown how the measurement of tracks of hadrons from semileptonic $\tau$ decays, in particular their relative impact parameters, allows to resolve this ambiguity.

J.H. K\“uhn
Phys. Lett. B313 458–460 1993
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