Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the CKM parameter cos(2phi_1) using time-dependent Dalitz
  analysis of B0bar -> D[Ks pi+ pi-] h0   We present a measurement of the angle phi1 of the CKM Unitarity Triangle
using time-dependent Dalitz analysis of D -> Ks pi+ pi- decays produced in
neutral B meson decay to a neutral D meson and a light meson (B0bar -> D(*)
h0). The method allows a direct extraction of 2phi1 and, therefore, helps to
resolve the ambiguity between 2phi1 and pi-2phi1 in the measurement of sin
2phi1. We obtain sin 2phi1=0.78+-0.44+-0.22 and cos 2phi1=1.87+0.40+0.22
-0.53-0.32 The sign of cos 2phi1 is determined to be positive at 98.3% C.L.

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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin