### 1. Introduction

All results and input files are available at http://www.slac.stanford.edu/xorg/hfag/semi/lp05/lp05.shtml

In the following (in no particular order), the updates for lepton-photon
2005 with respect to winter conferences 2005 are discussed.

The updates focus on two areas: measurements of exclusive charmless
semileptonic B decays (in particular B -> pi l nu) and measurements
of inclusive charmless semileptonic decays and the determination of
|Vub|.

Some of the error breakdowns can be found in
http://www.slac.stanford.edu/xorg/hfag/semi/lp05/lp05.xls
spreadsheet. This has been updated only for inclusive and exclusive |Vub|.

### 2. Changes to common parameters

The parameters used are listed in
common.param;
see the relevant (non-semileptonic) HFAG web pages for how they were determined.

### 3. Average of |Vub| from inclusive measurements on Upsilon(4S)

This determination has changed substantially in the past year. Recent
theoretical developments include radiative corrections to the leading
shape function, studies of sub-leading shape functions, and the
development of a new "generator", i.e. a calculation valid over the
full b -> u l nu decay phase space (see hep-ph/0504071). It is also
widely accepted now that heavy quark (HQ) parameters determined other
processes, e.g. moments from b -> c l nu semileptonic decays, can be
used to constrain moments of the leading shape function.
As the best method for determining the HQ parameters is still
a subject for discussion, |Vub| is determined using several choices
for the HQ parameters.

### 4. B -> pi l nu measurements

Several new measurements are available, some with partial rates in
bins of q^2. The most precise measurements are still the untagged
(i.e. neutrino reconstruction) variety, but the average of the
B-tagged measurements is becoming competitive for the total branching
fraction. The determination of |Vub| from these measurements
is still evolving; at present we use only the partial BF for q2>16
along with unquenched lattice QCD calculations

### 5. Conclusion

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