Plaquette expectation value and gluon condensate in three dimensions
نویسندگان
چکیده
منابع مشابه
Plaquette expectation value and gluon condensate in three dimensions
In three dimensions, the gluon condensate of pure SU(3) gauge theory has ultraviolet divergences up to 4-loop level only. By subtracting the corresponding terms from lattice measurements of the plaquette expectation value and extrapolating to the continuum limit, we extract the finite part of the gluon condensate in lattice regularization. Through a change of regularization scheme to MS and (in...
متن کاملPlaquette expectation value and lattice free energy of three - dimensional SU ( N c ) gauge theory
We use high precision lattice simulations to calculate the plaquette expectation value in three-dimensional SU(Nc) gauge theory for Nc = 2, 3, 4, 5, 8. Using these results, we study the Nc-dependence of the first non-perturbative coefficient in the weak-coupling expansion of hot QCD. We demonstrate that, in the limit of large Nc, the functional form of the plaquette expectation value with ultra...
متن کاملImproving the gluon condensate in three-dimensional Yang-Mills theory
We apply the tadpole and cactus improvement methods to the measurement of the gluon condensate of 3D SU(3) Yang-Mills theory. The matching of the lattice measurement to the continuum MS scheme involves the subtraction of a series of lattice artifacts divergent up to four loop, which has recently appeared in the literature. The two tested improvement methods are found to significantly increase t...
متن کاملGluon Condensate and Beyond
This review is based on the Sakurai prize lecture given at the Centennial Meeting of the American Physical Society (Atlanta, March 1999). The lecture was the second in the series of three talks related to the Sakurai prize 1999, and it followed Arkady Vainshtein’s summary of the discovery of the penguins . My main task was to review the QCD sum rules 2 within the context of the time when they w...
متن کاملGluon Condensate and Parton Propagation in a Quark-gluon Plasma
Finite temperature QCD can be used to describe properties of a quark-gluon plasma (QGP) possibly created in the fireball of relativistic heavy ion collisions and in the early Universe. There are two different methods available, namely lattice QCD and perturbation theory. Lattice QCD is a non-perturbative method, which can be used at all temperatures above and below the phase transition. However...
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: Journal of High Energy Physics
سال: 2005
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2005/01/013