Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The scalar does not decay at finite temperatures   We investigate medium effects on mesonic screening lengths for QCD with
2-flavours of dynamical staggered quarks on lattices with cutoff a=1/6T.
Denoting the cross-over temperature by $T_c$, we vary the temperature T from
0.89$T_c$ to 1.92$T_c$, spanning both the hadronic and quark gluon plasma
phases. While chiral symmetry restoration in the vector channel appears to take
place near $T_c$, it is seen in the scalar channel only above 1.33 $T_c$.
Varying spatial lattice sizes, we find very little volume dependence in our
results at 0.94 $T_c$. We discuss the stability of the scalar meson at these
temperatures.

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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
1
The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: econ
8
The categories of this paper are: hep-ex
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin