Determination of V_ub at the Z-boson resonance

Details Determination of V_ub at the Z-boson resonance Determination of V_ub at the Z-boson resonance

1994-09-15

arxiv.org/abs/hep-ph/9409317v1

Phys.Lett.B345:296-300,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages including 3 figures (standard tex file)

Scientific paper

10.1016/0370-2693(94)01594-3

We show that the observation of energetic charged leptons from semileptonic $b$ becays at the LEP and SLC $Z$--boson factories offers a unique opportunity to measure the quark mixing matrix element $V_{ub}$. We present various distributions of the $b$ decay products to show that the $b \to u$ decays can be cleanly separated from the $b \to c$ decays, with a signal of $O(100)$ events per million $Z$ bosons produced.

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