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

C. S. Kim; A. D. Martin

Measuring$|V_{ub}|$attheLEP/SLC

High Energy Physics - Phenomenology 2009-09-25 v1

Authors: C. S. Kim , A. D. Martin

Abstract

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.

Keywords

semileptonic b meson decays heavy meson decays b meson physics

Cite

@article{arxiv.hep-ph/9412376,
  title  = {Measuring~~$|V_{ub}|$~~at~~the~~LEP/SLC},
  author = {C. S. Kim and A. D. Martin},
  journal= {arXiv preprint arXiv:hep-ph/9412376},
  year   = {2009}
}

Comments

7 pages, 2 figures (not included) available (kim@cskim.yonsei.ac.kr). Talk given by C.S. Kim, at the Int. Workshop on B-physics, Nagoya, Japan, on Oct. 26--28, 1994. Proceedings published by World Scientific, Singapore, edited by A. Sanda and S. Suzuki