hi roberto & kerstin,
fine with me too..thanks for take care of that.
ciao
Vir
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.*. Two atoms bump into each other.
/V\ One says 'I think I lost an electron!'
(/ \) The other asks, 'Are you sure?',
( ) to which the first replies, 'I'm positive.'
^^-^^ -----------------------------------------------------------
On Thu, 29 Mar 2007, Roberto Sacco wrote:
> Hi all,
>
> we came up with the following title/abstract:
>
> Measurement of Partial Branching Fractions for Inclusive
> Charmless Semileptonic $B$ Decays, Extraction of $|V_{ub}|$ and
> Determination of non-Perturbative OPE Parameters
> from the Hadronic Mass Spectrum
>
> ABSTRACT
> --------
> Charmless semileptonic decays, $B \rightarrow X_u \ell \bar{\nu}$,
> are studied in a sample of 383 million $B \overline{B}$ decays recorded
> with the BaBar detector, in events where the decay of the second B meson
> is fully reconstructed. Distributions of various kinematic variables
> characterising $B \righarrow X_u \ell \bar{\nu}$ decays are studied.
> Partial branching fractions $\Delta {\mathcal B} (B \righarrow X_u \ell \bar{\nu})$
> are measured in kinematic regions where the dominant background from
> semileptonic $B$ decays to charm is reduced. The CKM matrix element $|V_{ub}|$
> is extracted by using theoretical calculations of phase space acceptances.
> Furthermore, we determine the spectrum of the hadronic system $X_u$
> after unfolding for acceptance and detector effects. From an analysis of
> the first three truncated spectral moments we determine the value of
> the $b$-quark mass $m_b$ together with the leading parameters of the
> $1/m_b^2$ and $1/m_b^3$ terms in the OPE.
>
>
> Do you like it? Do you want to see it changed? Should it be more general/detailed?
> Let us know!
>
> Cheers,
>
> Kerstin and Roberto
>
