Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative $b\to d$ Penguins   This article gives an overview of the recent searches and measurements of
$b\to d$ penguin transitions with the BaBar experiment. The branching fraction
of these decays in the Standard Model (SM) is expected to be a factor of 10 or
more lower than the corresponding $b\to s$ penguin transitions, but a deviation
from the SM prediction would be an equally striking sign of new physics. The
exclusive decay $B\to\pi\ell\ell$ is searched by BaBar with no excess over the
background found. The BaBar measurement of $B\to(\rho,\omega)\gamma$ provides
the first evidence of $B^+\to\rho^+\gamma$, is in good agreement with the
previous Belle results and provides a measurement of $|V_{td}/V_{ts}|$
independent of the one from $B_s$ mixing. No deviation from the SM is found.

36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
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The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys