New scheme for the running coupling constant in gauge theories using Wilson loops

@article{Bilgici2009NewSF,
  title={New scheme for the running coupling constant in gauge theories using Wilson loops},
  author={E. Bilgici and A. Flachi and E. Itou and M. Kurachi and C-J Lin and H. Matsufuru and H. Ohki and T. Onogi and T. Yamazaki},
  journal={Physical Review D},
  year={2009},
  volume={80},
  pages={034507}
}
We propose a new renormalization scheme of the running coupling constant in general gauge theories using the Wilson loops. The renormalized coupling constant is obtained from the Creutz ratio in lattice simulations and the corresponding perturbative coefficient at the leading order. The latter can be calculated by adopting the zeta-function resummation techniques. We perform a benchmark test of our scheme in quenched QCD with the plaquette gauge action. The running of the coupling constant is… Expand
View PDF on arXiv
23 Citations
Background Citations
2
Methods Citations
3
Results Citations
1

23 Citations

Citation Type

Citation Type

Search for the IR fixed point in the Twisted Polyakov Loop scheme (II)
We measure the renormalized coupling in the Twisted Polyakov loop scheme for SU(3) gauge theory coupled with $N_f=12$ fundamental fermions. To find the infrared fixed point of this theory, we focus… Expand
Study of the scaling properties in SU(2) gauge theory with eight flavors
We present our preliminary study of the SU(2) gauge theory with 8 flavors of fermions in fundamental representation. This theory could be a candidate of the gauge theory with conformal fixed point.… Expand
Calculating the running coupling in strong electroweak models
One possibility for Beyond Standard Model physics is a new strongly-interacting gauge theory. One way to determine if a non-abelian gauge theory is QCD-like or conformal is to measure the running of… Expand
Properties of the twisted Polyakov loop coupling and the infrared fixed point in the SU(3) gauge theories
We report the nonperturbative behavior of the twisted Polyakov loop (TPL) coupling constant for the SU(3) gauge theories defined by the ratio of Polyakov loop correlators in finite volume with… Expand
Non-perturbative renormalization and low mode averaging with domain wall fermions
This thesis presents an improved method to calculate renormalization constants in a regularization invariant momentum scheme using twisted boundary conditions. This enables us to simulate with… Expand
Nearly conformal gauge theories in finite volume
Abstract We report new results on nearly conformal gauge theories with fermions in the fundamental representation of the SU ( 3 ) color gauge group as the number of fermion flavors is varied in the N… Expand
Non-perturbative Renormalization Group in Lattice Gauge Theory
Our main focus is on developing non-perturbative lattice renormalization schemes. Key concepts of contemporary theoretical physics such as universality, self-similarity, scaling, data collapse and… Expand
The QCD transition temperature: results with physical masses in the continuum limit II.
We extend our previous study [Phys. Lett. B 643 (2006) 46] of the cross-over temperatures (Tc) of QCD. We improve our zero temperature analysis by using physical quark masses and finer lattices. In… Expand
The QCD equation of state from the lattice
The equation of state of QCD at finite temperatures and baryon densities has a wide range of applications in many fields of modern particle and nuclear physics. It is the main ingredient to describe… Expand
The conformal window on the lattice
Lattice simulations can play an important role in the study of dynamical electroweak symmetry breaking by providing quantitative results on the nonperturbative dynamics of candidate theories. For… Expand
...
1
2
3
...

References

SHOWING 1-10 OF 34 REFERENCES
A New Method of Calculating the Running Coupling Constant
We propose a new method to compute the running coupling constant of gauge theories on the lattice. We first give the definition of the running coupling i n the new scheme using the Wilson loops in a… Expand
Spectrum of SU(2) lattice gauge theory with two adjoint Dirac flavours
An SU(2) gauge theory with two fermions transforming under the adjoint representation of the gauge group may appear conformal or almost conformal in the infrared. We use lattice simulations to study… Expand
Fermions in higher representations. Some results about SU(2) with adjoint fermions.
We discuss the lattice formulation of gauge theories with fermions in arbitrary representations of the color group, and present the implementation of the RHMC algorithm for simulating dynamical… Expand
Nearly conformal electroweak sector with chiral fermions
SU(3) gauge theory with dynamical overlap fermions in the 2-index symmetric (sextet) representation is considered. This model may be a viable model of the electroweak symmetry breaking sector along… Expand
Phase structure of SU(3) gauge theory with two flavors of symmetric-representation fermions
We have performed numerical simulations of SU(3) gauge theory coupled to ${N}_{f}=2$ flavors of symmetric-representation fermions. The fermions are discretized with the tadpole-improved clover… Expand
Lattice study of conformal behavior in SU(3) Yang-Mills theories
Using lattice simulations, we study the extent of the conformal window for an SU(3) gauge theory with N{sub f} Dirac fermions in the fundamental representation. We extend our recently reported work,… Expand
Probing technicolor theories with staggered fermions
One exciting possibility of new physics beyond the Standard Model is that the fundamental Higgs sector is replaced by a strongly-interacting gauge theory, known as technicolor. A viable theory must… Expand
Higher representations on the lattice: numerical simulations. SU(2) with adjoint fermions
We discuss the lattice formulation of gauge theories with fermions in arbitrary representations of the color group and present in detail the implementation of the hybrid Monte Carlo (HMC)/rational… Expand
"J."
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)… Expand
Proc
  • Natl. Acad. Sci. U.S.A. 35, 371
  • 1949
...
1
2
3
4
...