Quark-Antiquark Forces From SU(2) And SU(3) Gauge Theories On Large Lattices

نویسندگان

  • Gunnar S. Bali
  • Klaus Schilling
  • Armin Wachter
چکیده

We present results on the spin-independent quark-antiquark potential in SU(3) gauge theory from a simulation on a 483×64 lattice at β = 6.8, corresponding to a volume of (1.7 fm). Moreover, a comprehensive analysis of spinand velocitydependent potentials is carried out for SU(2) gauge theory, with emphasis on the short range structure, on lattices with resolutions ranging from .02 fm to .04 fm. Invited talk given at “International Workshop on Color Confinement and Hadrons, CONFINEMENT 95”, March 22–24, 1995, RCNP Osaka, Japan.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Excitations of the Static Quark-antiquark System in Several Gauge

The spectrum of gluons in the presence of a static quark-antiquark pair is studied using Monte Carlo simulations on anisotropic space-time lattices. For very small quark-antiquark separations R, the level orderings and approximate degeneracies disagree with the expectations from an effective string theory. As the quarkantiquark separation R increases, a dramatic rearrangement of the energies oc...

متن کامل

Models of Dynamical Supersymmetry Breaking from a SU(2k+3) Gauge Model

We investigate three classes of supersymmetric models which can be obtained by breaking the chiral SU(2k+3) gauge theories with one antisymmetric tensor and 2k-1 antifundamentals. For N=3, the chiral SU(2k)×SU(3)×U(1) theories break supersymmetry by the quantum deformations of the moduli spaces in the strong SU(2k) gauge coupling limit. For N=2, it is the generalization of the SU(5)×U(2)×U(1) m...

متن کامل

Singlet Free Energies of a Static Quark-antiquark Pair

Static free energy of a quark-antiquark pair is a frequently used tool to study non-perturbatively the in-medium modification of inter-quark forces. It is calculated as the difference in the free energy of the system with static quarks and the same system without them, while the temperature remains constant. Due to colour symmetry such quantity contains the singlet and the octet contributions, ...

متن کامل

Some Multi-Quark Potentials, Pseudo-Potentials and AdS/QCD

The static three-quark potential and pseudo-potential of a pure SU(3) gauge theory are studied in a five-dimensional framework known as AdS/QCD. The results support the Yansatz for the baryonic area law. A comparison with the quark-antiquark calculations shows the universality of the string tension as well as the spatial string tension. We also discuss extensions to SU(N) gauge theories. PACS: ...

متن کامل

ar X iv : h ep - l at / 0 01 10 41 v 1 7 N ov 2 00 0 1 Fixed Point SU ( 3 ) Gauge Actions : Scaling Properties and Glueballs ∗ †

We present a new parametrization of a SU(3) fixed point (FP) gauge action using smeared (”fat”) gauge links. We report on the scaling behaviour of the FP action on coarse lattices by means of the static quark-antiquark potential, the hadronic scale r0, the string tension σ and the critical temperature Tc of the deconfining phase transition. In addition, we investigate the low lying glueball mas...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1995