Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kaon semileptonic decay form factors with HISQ valence quarks   We report on the status of our kaon semileptonic form factor calculations
using the highly-improved staggered quark (HISQ) formulation to simulate the
valence fermions. We present results for the form factor f_+^{K \pi}(0) on the
asqtad N_f=2+1 MILC configurations, discuss the chiral-continuum extrapolation,
and give a preliminary estimate of the total error. We also present a more
preliminary set of results for the same form factor but with the sea quarks
also simulated with the HISQ action; these results include data at the physical
light quark masses. The improvements that we expect to achieve with the use of
the HISQ configurations and simulations at the physical quark masses are
briefly discussed.

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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol