Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The anomalous chiral Lagrangian of order $p^6$   We construct the effective chiral Lagrangian for chiral perturbation theory
in the mesonic odd-intrinsic-parity sector at order $p^6$. The Lagrangian
contains 24 in principle measurable terms and no contact terms for the general
case of $N_f$ light flavours, 23 terms for three and 5 for two flavours. In the
two flavour case we need a total of 13 terms if an external singlet vector
field is included. We discuss and implement the methods used to reduce to a
minimal set. The infinite parts needed for renormalization are calculated and
presented as well.

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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org