Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the Inclusive Electron Spectrum in Charmless Semileptonic
  B Decays Near the Kinematic Endpoint and Determination of |Vub|   We present a measurement of the inclusive electron spectrum in charmless
semileptonic B decays near the kinematic limit for B->X_c e\nu transitions,
using a sample of 88 million Upsilon(4S) decays recorded by the BABAR detector.
Partial branching fraction measurements are performed in five overlapping
intervals of the electron momentum. For the interval of 2.0-2.6 GeV/c we obtain
\Delta Br(B->X_u e\nu) = (0.572+-0.041(stat)+-0.065(syst))x10^{-3}. Combining
this result with shape function parameters extracted from BABAR measurements of
moments of the inclusive photon spectrum in B->X_s+gamma decays and moments of
the hadron mass and lepton energy spectra in B->X_c l\nu decays we determine
|V_{ub}|=((4.44+-0.25(exp) ^{+0.42}_{-0.38}(SF)+-0.22(theory))x10^{-3}. Here
the first error represents the combined statistical and systematic experimental
uncertainties of the partial branching fraction measurement, the second error
refers to the uncertainty of the determination of the shape function
parameters, and the third error is due to theoretical uncertainties in the QCD
calculations.

29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin