Laplacian gauge gluon propagator inSU(Nc)

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Laplacian gauge gluon propagator in SU „

Lattice QCD provides a well suited theoretical framework for the study of nonperturbative quantities as a function of the number of colors. Although experimentally inaccessible, QCD for Nc52 and Nc54 is interesting from the theoretical point of view. Recently SU(Nc) Yang-Mills theories were investigated for various Nc by two groups @1,2# with emphasis on the evaluation of string tensions and gl...

متن کامل

The Infrared Landau Gauge Gluon Propagator from Lattice QCD

The quenched Landau gauge gluon propagator is investigated in lattice QCD with large assimetric lattices, accessing momenta as low as q ∼ 100 MeV or smaller. Our investigation focus on the IR limit of the gluon dressing function, testing the compatibility with recent solutions of the Dyson-Schwinger equations. In particular, the low energy parameters κ and α(0) are measured. The confinement of ...

متن کامل

Analytic structure of the Landau-gauge gluon propagator.

The analytic structure of the nonperturbative gluon propagator contains information on the absence of gluons from the physical spectrum of the theory. We study this structure from numerical solutions in the complex momentum plane of the gluon and ghost Dyson-Schwinger equations in Landau gauge Yang-Mills theory. The resulting ghost and gluon propagators are analytic apart from a distinct cut st...

متن کامل

The Landau gauge lattice QCD simulation and the gluon propagator

In 1978 Gribov showed that the fixing of the divergence of the gauge field in non-Abelian gauge theory does not fix its gauge[1]. The restriction of the gauge field such that its Faddeev-Popov determinant is positive (Gribov region) is necessary yet insufficient for excluding the ambiguity. The restriction to the fundamental modular region[2,4] cancels the infrared singularity of the perturbati...

متن کامل

Infrared Behavior of the Gluon Propagator in Lattice Landau Gauge

We evaluate numerically the four-momentum-space gluon propagator in lattice Landau gauge, for pure SU(2) lattice gauge theory with periodic boundary conditions. Simulations are done in the strong-coupling regime, namely at β = 0, 0.8, 1.2 and 1.6, and for lattice sizes up to 30, 16, 20 and 24 respectively. In the limit of large lattice volume, we observe in all cases a gluon propagator decreasi...

متن کامل

ذخیره 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: Physical Review D

سال: 2002

ISSN: 0556-2821,1089-4918

DOI: 10.1103/physrevd.65.117502