Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Model-Independent Analysis of B -> pi K Decays and Bounds on the Weak
  Phase gamma   A general parametrization of the amplitudes for the rare two-body decays B ->
pi K is introduced, which makes maximal use of theoretical constraints arising
from flavour symmetries of the strong interactions and the structure of the
low-energy effective weak Hamiltonian. With the help of this parametrization, a
model-independent analysis of the branching ratios and direct CP asymmetries in
the various B -> pi K decay modes is performed, and the impact of hadronic
uncertainties on bounds on the weak phase gamma = arg(Vub*) is investigated.

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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
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The categories of this paper are: nlin
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The categories of this paper are: stat
13
The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th