Infinite temperature limit of meson spectral functions calculated on the lattice

Karsch F, Laermann E, Stickan S, Petreczky P (2003)
PHYSICAL REVIEW D 68(1).

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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We analyze the cutoff dependence of mesonic spectral functions calculated at finite temperature on Euclidean lattices with a finite temporal extent. In the infinite temperature limit we present analytic results for lattice spectral functions calculated with standard Wilson fermions as well as a truncated perfect action. We explicitly determine the influence of "Wilson doublers" on the high momentum structure of the mesonic spectral functions and show that this cutoff effect is strongly suppressed when using an improved fermion action.
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PHYSICAL REVIEW D
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68
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1
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Karsch F, Laermann E, Stickan S, Petreczky P. Infinite temperature limit of meson spectral functions calculated on the lattice. PHYSICAL REVIEW D. 2003;68(1).
Karsch, F., Laermann, E., Stickan, S., & Petreczky, P. (2003). Infinite temperature limit of meson spectral functions calculated on the lattice. PHYSICAL REVIEW D, 68(1). doi:10.1103/PhysRevD.68.014504
Karsch, F., Laermann, E., Stickan, S., and Petreczky, P. (2003). Infinite temperature limit of meson spectral functions calculated on the lattice. PHYSICAL REVIEW D 68.
Karsch, F., et al., 2003. Infinite temperature limit of meson spectral functions calculated on the lattice. PHYSICAL REVIEW D, 68(1).
F. Karsch, et al., “Infinite temperature limit of meson spectral functions calculated on the lattice”, PHYSICAL REVIEW D, vol. 68, 2003.
Karsch, F., Laermann, E., Stickan, S., Petreczky, P.: Infinite temperature limit of meson spectral functions calculated on the lattice. PHYSICAL REVIEW D. 68, (2003).
Karsch, Frithjof, Laermann, Edwin, Stickan, S, and Petreczky, P. “Infinite temperature limit of meson spectral functions calculated on the lattice”. PHYSICAL REVIEW D 68.1 (2003).

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arXiv: hep-lat/0303017

Inspire: 615640

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