no way to compare when less than two revisions
Differences
This shows you the differences between two versions of the page.
— | preprints:2002:ttp02-06 [2016/03/17 11:03] (current) – created - external edit 127.0.0.1 | ||
---|---|---|---|
Line 1: | Line 1: | ||
+ | ====== TTP02-06 Subleading shape functions in $B \to X_u \ell \bar \nu$ and the determination of $|V_{ub}|$ ====== | ||
+ | |||
+ | |||
+ | < | ||
+ | | ||
+ | that the same two subleading twist functions that appear in the decay | ||
+ | $B \to X_s \gamma$ govern the subleading effects in this decay. Using | ||
+ | these results we find large ${O}(\lqcd/ | ||
+ | | ||
+ | | ||
+ | we estimate the uncertainty in $|V_{ub}|$ from $\lqcd/m_b$ corrections | ||
+ | to be at the $\sim 15\%$ level for a lower lepton energy cut of 2.2 GeV. | ||
+ | </ | ||
+ | |**Christian W. Bauer, Michael Luke, Thomas Mannel** | ||
+ | |** Phys. Lett. B543 261-268 2002 ** | | ||
+ | | {{preprints: | ||
+ | | | |