Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the $D^*(2010)^+ - D^+$ mass difference   We measure the mass difference, $\Delta m_+$, between the $D^{*}(2010)^+$ and
the $D^+$ using the decay chain $D^{*}(2010)^+\to D^+ \pi^0$ with $D^+\to
K^-\pi^+\pi^+$. The data were recorded with the BABAR detector at
center-of-mass energies at and near the $\Upsilon(4S)$ resonance, and
correspond to an integrated luminosity of approximately 468 ${\rm fb}^{-1}$. We
measure $\Delta m_+ = \left(140\,601.0 \pm 6.8[{\rm stat}] \pm 12.9[{\rm
syst}]\right)$ keV. We combine this result with a previous BABAR measurement of
$\Delta m_0\equiv m(D^{*}(2010)^+) - m (D^0)$ to obtain $\Delta m_D = m(D^+) -
m(D^0) = \left(4\,824.9 \pm 6.8[{\rm stat}] \pm 12.9[{\rm syst}]\right)$ keV.
These results are compatible with and approximately five times more precise
than the Particle Data Group averages.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph