Mesonic correlation lengths in high-temperature QCD

Laine M, Vepsalainen M (2004)
JOURNAL OF HIGH ENERGY PHYSICS 2004(02).

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Abstract
We consider spatial correlation lengths xi for various QCD light quark bilinears, at temperatures above a few hundred MeV. Some of the correlation lengths (such as that related to baryon density) coincide with what has been measured earlier on from glueball-like states; others do not couple to glueballs, and have a well-known perturbative leading-order expression as well as a computable next-to-leading-order correction. We determine the latter following analogies with the NRQCD effective theory, used for the study of heavy quarkonia at zero temperature: we find (for the quenched case) xi(-1) = 2piT + 0.1408g(2)T, and compare with lattice results. One manifestation of U-A(1) symmetry non-restoration is also pointed out.
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Laine M, Vepsalainen M. Mesonic correlation lengths in high-temperature QCD. JOURNAL OF HIGH ENERGY PHYSICS. 2004;2004(02).
Laine, M., & Vepsalainen, M. (2004). Mesonic correlation lengths in high-temperature QCD. JOURNAL OF HIGH ENERGY PHYSICS, 2004(02).
Laine, M., and Vepsalainen, M. (2004). Mesonic correlation lengths in high-temperature QCD. JOURNAL OF HIGH ENERGY PHYSICS 2004.
Laine, M., & Vepsalainen, M., 2004. Mesonic correlation lengths in high-temperature QCD. JOURNAL OF HIGH ENERGY PHYSICS, 2004(02).
M. Laine and M. Vepsalainen, “Mesonic correlation lengths in high-temperature QCD”, JOURNAL OF HIGH ENERGY PHYSICS, vol. 2004, 2004.
Laine, M., Vepsalainen, M.: Mesonic correlation lengths in high-temperature QCD. JOURNAL OF HIGH ENERGY PHYSICS. 2004, (2004).
Laine, Mikko, and Vepsalainen, M. “Mesonic correlation lengths in high-temperature QCD”. JOURNAL OF HIGH ENERGY PHYSICS 2004.02 (2004).
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