Measuring~~$|V_{ub}|$~~at~~the~~LEP/SLC

Details Measuring~~$|V_{ub}|$~~at~~the~~LEP/SLC Measuring~~$|V_{ub}|$~~at~~the~~LEP/SLC

1994-12-28

arxiv.org/abs/hep-ph/9412376v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures (not included) available (kim@cskim.yonsei.ac.kr). Talk given by C.S. Kim, at the Int. Workshop on B-physic

Scientific paper

We show that the observation of energetic charged leptons from semileptonic $B$-meson decays 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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