Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Approaching the chiral point in two-flavour lattice simulations   We investigate the behaviour of the pion decay constant and the pion mass in
two-flavour lattice QCD, with the physical and chiral points as ultimate goal.
Measurements come from the ensembles generated by the CLS initiative using the
O(a)-improved Wilson formulation, with lattice spacing down to about 0.05 fermi
and pion masses as low as 190 MeV. The applicability of SU(2) chiral
perturbation theory is investigated, and various functional forms, and their
range of validity, are compared. The physical scale is set through the kaon
decay constant, whose measurement is enabled by inserting a third, heavier
valence strange quark.

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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: econ
27
The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg
2
The categories of this paper are: math
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol