QCD string tension curve, the ferromagnetic magnetization, and the quark-antiquark confining potential at finite temperature
نویسندگان
چکیده
منابع مشابه
Complex heavy-quark potential at finite temperature from lattice QCD.
We calculate for the first time the complex potential between a heavy quark and antiquark at finite temperature across the deconfinement transition in lattice QCD. The real and imaginary part of the potential at each separation distance r is obtained from the spectral function of the thermal Wilson loop. We confirm the existence of an imaginary part above the critical temperature T(C), which gr...
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The tt̄ system allows a truly perturbative treatment of the potential. Completing previous computations, we calculate the contributions of QCD box graph corrections, which make the “relativistic” O(α4) corrections in the non-Abelian case differ from the well known corrections of the same order in QED. PACS: 11.10S, 11.15, 12.10D, 12.38, 14.40G CERN-TH/96-27 TUW-96-02 February 1996 [email protected]...
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The static potential between an infinitely heavy quark and antiquark is derived in the framework of perturbative QCD to three loops by performing a full calculation of the two-loop diagrams and using the renormalization group. The contribution of massless fermions is included. The force law between infinitely heavy quarks has been investigated since more than 20 years because of its importance ...
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The quark-antiquark potential is constructed by making use of a new analytic running coupling in QCD. This running coupling arises under “analytization” of the renormalization group equation. The rising behavior of the quarkantiquark potential at large distances, which provides the quark confinement, is shown explicitly. At small distances, the standard behavior of this potential originating in...
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We study the “effective string picture” of confinement, deriving theoretical predictions for the interquark potential at finite temperature. At low temperatures, the leading string correction to the linear confining potential between a heavy quarkantiquark pair is the “Lüscher term”. Assuming a Nambu–Goto effective string action, subleading contributions can be worked out in an analytical way. ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2010
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.82.034507