Measuring Arg($V_{ub}$) in $B\to Kπ$

Details Measuring Arg($V_{ub}$) in $B\to Kπ$ Measuring Arg($V_{ub}$) in $B\to Kπ$

1997-12-28

arxiv.org/abs/hep-ph/9712531v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

fixed minor sign error in equation 8 and 11

Scientific paper

It has previously been shown that a measurement of Arg$(V_{ub})=\gamma$ can be obtained from a triangle construction using ${\cal B}(B^0\to K^+\pi^-)$, ${\cal B}(\bar{B^0}\to K^-\pi^+)$, ${\cal B}(B^\pm\to K^0_s\pi^\pm)$, and ${\cal B}(B^\pm\to \pi^\pm\pi^0)$. We evaluate experimental as well as theoretical uncertainties in this measurement. We find that a measurement of $\gamma $ with the next generation of B-factories (BaBar, BELLE, CLEO III) is statistics rather than theory limited if soft rescattering effects are small.

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