Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CP Violating Phase Difference between $B\to J/\psi K_S$ and $J/\psi K_S
  \pi^0$ from New Physics   The small P wave compoment of $B\to J/\psi K^*$ measured by CLEO makes it
practical to measure $\sin2\beta$ using $B^0\to J/\psi K^{*0}\to J/\psi K_S
\pi^0$, independent from $B^0\to J/\psi K_S$. Because these modes are color
suppressed, new physics enhanced color dipole $bsg$ coupling, as hinted from
the persistent ${\cal B}_{s.l.}$ and $n_C$ problems as well as the newly
observed large semi-inclusive $B\to \eta^\prime + X_s$ decay, may have
significant impact. We show that it may lead to a difference in the $\sin
2\beta$ measurements between $B^0\to J/\psi K_S$ and $J/\psi K_S \pi^0$
measureable at the B Factories in the near future.

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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con