Static quark anti-quark interactions at non-zero temperature from lattice QCD
نویسندگان
چکیده
We present results on the in-medium interactions of static quark antiquark pairs using realistic 2+1 HISQ flavor lattice QCD. Focus is put extraction spectral information from Wilson line correlators in Coulomb gauge four complementary methods. Our indicate that lattices, position dominant peak associated with real-part interquark potential remains unaffected by temperature. This contrast to prior work quenched QCD and we follow up comparisons newly generated ensembles.
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...
متن کاملQuark Model From Lattice QCD
We study the valence approximation in lattice QCD of hadrons where the cloud quarks and antiquarks are deleted by truncating the backward time propagation (Z graphs) in the connected insertions. Whereas, the sea quarks are eliminated via the quenched approximation and in the disconnected insertions. It is shown that the ratios of isovector to isoscalar matrix elements in the nucleon reproduce t...
متن کاملHeavy Quark Interactions in Finite Temperature QCD
We study the free energy of a heavy quark-antiquark pair in a thermal medium. We constuct a simple ansatz for the free energy for two quark flavors motivated by the Debye-Hückel theory of screening. PACS. 11.15.Ha, 12.38.Mh, 25.75.Nq
متن کاملStatic quark-antiquark potential in the quark-gluon plasma from lattice QCD.
We present a state-of-the-art determination of the complex valued static quark-antiquark potential at phenomenologically relevant temperatures around the deconfinement phase transition. Its values are obtained from nonperturbative lattice QCD simulations using spectral functions extracted via a novel Bayesian inference prescription. We find that the real part, both in a gluonic medium, as well ...
متن کاملEffective Quark Interactions from QCD
We propose a new method for an analytical, non-perturbative computation of effective quark interactions from QCD. It is based on an exact flow equation which describes the scale dependence of the effective average action for quarks in presence of gluons.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Epj Web of Conferences
سال: 2022
ISSN: ['2101-6275', '2100-014X']
DOI: https://doi.org/10.1051/epjconf/202227404006