Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of Time-Dependent CP Asymmetry in Neutral B Decays to J/psi pi0   We present the first study of the time-dependent CP-violating asymmetry in B0
-> J/psi pi0 decays using e+e- annihilation data collected with the BaBar
detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II
asymmetric-energy B Factory at SLAC. Using approximately 88 million BBbar
pairs, our results for the coefficients of the cosine and sine terms of the CP
asymmetry are C_(J/psi pi0) = 0.38 +/- 0.41 (stat) +/- 0.09 (syst) and S_(J/psi
pi0) = 0.05 +/- 0.49 (stat) +/- 0.16 (syst).

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The categories of this paper are: q-alg
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: atom-ph