Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics of lattice QCD with 3 flavours of colour-sextet quarks
  II: N_t=6 and N_t=8   We have been studying QCD with 2 flavours of colour-sextet quarks as a
candidate walking-Technicolor theory using lattice-QCD simulations. The
evolution of the coupling constant with lattice spacing is measured at the
finite-temperature chiral transition to determine if this theory is
asymptotically free and hence QCD-like. The lattice spacing is varied by
changing the number of lattice sites, $N_t$, in the Euclidean time direction.
QCD with 3 flavours is studied for comparison. Since this theory is expected to
be conformal, with an infrared fixed point, the coupling constant at the chiral
transition should approach a non-zero value as $N_t$ becomes large. Our earlier
simulations on lattices with $N_t=4$ and $N_t=6$ exhibited a significant
decrease in coupling at the chiral transition as $N_t$ was increased. We have
now extended these simulations to $N_t=8$, and performed additional simulations
at $N_t=6$ to measure the coupling constant at the chiral transition more
precisely. These indicate that while there is an appreciable decrease in
coupling between $N_t=6$ and $N_t=8$, this is much smaller than that between
$N_t=4$ and $N_t=6$. Thus we are hopeful that we are approaching the
large-$N_t$ limit. However, further simulations at larger $N_t$(s) are needed.

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The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
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The categories of this paper are: adap-org