Experimental tests of asymptotic freedom

@article{Bethke1996ExperimentalTO,
  title={Experimental tests of asymptotic freedom},
  author={Siegfried Bethke},
  journal={Progress in Particle and Nuclear Physics},
  year={1996},
  volume={58},
  pages={351-386}
}
  • S. Bethke
  • Published 19 September 1996
  • Physics
  • Progress in Particle and Nuclear Physics

Hadron Spectrum and the Infrared Behavior of QCD Coupling

A relativistic quantum-field model based on analytical confinement is developed to build stable bound states of spin-half and spin-one particles. The spectra of two-quark ground states are defined by

Hadron spectrum and infrared-finite behavior of QCD running coupling

  • G. Ganbold
  • Physics
    Physics of Particles and Nuclei
  • 2012
We study the behavior of the QCD effective coupling αs in the low-energy region by exploiting the conventional meson spectrum within a relativistic quantum-field model based on analytical confinement

Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement

The phenomena of strong running coupling and hadron mass generating have been studied in the framework of a QCD-inspired relativistic model of quark-gluon interaction with infrared-confined

The Reformulated Asymptotic Freedom

Within the Scale-Symmetric Theory we calculated the running coupling for the nuclear strong interactions applying three different methods. They lead to very close theoretical results. At very high

QCD running coupling in low-energy region

We estimate the QCD effective charge {alpha}{sub s} in the low-energy region by exploiting the conventional meson spectrum within a relativistic quantum-field model based on analytic confinement. The

Collider signals of gravitational fixed points

Recent studies have shown that the poor perturbative behavior of General Relativity in the ultraviolet regime may be ameliorated by the existence of a non-Gaussian fixed point which renders the

Bound-state approach to the QCD coupling constant at low-energy scales.

It is claimed that the combined BS-APT theoretical scheme provides a rather satisfactory correlated understanding of very high- and low-energy phenomena.

Determination of the strong coupling constant using available experimental data

We determine the strong coupling constant αs up to 4-loop in perturbative QCD. Testing QCD requires the measurement of αs over ranges of energy scales. In this analysis, the value of αs is determined

Nonperturbative QCD Simulations with 2+1 Flavors of Improved Staggered Quarks

Dramatic progress has been made over the last decade in the numerical study of quantum chromodynamics (QCD) through the use of improved formulations of QCD on the lattice (improved actions), the

Theoretical Uncertainties in the Determination of αs from Hadronic Event Observables: the Impact of Nonperturbative Effects

Precise determination of the strong coupling has become one of the most important tasks of the QCD theory and phenomenology [1]. From the theoretical point of view the cleanest measurement comes from
...

References

SHOWING 1-10 OF 102 REFERENCES

On the Elimination of Scale Ambiguities in Perturbative Quantum Chromodynamics

We present a new method for resolving the scheme-scale ambiguity that has plagued perturbative analyses in quantum chromodynamics (QCD) and other gauge theories. For Abelian theories the method

Asymptotic freedom in deep inelastic processes in the leading order and beyond

The present status of quantum chromodynamics formalism for inclusive deep-inelastic scattering is reviewed. Leading-order and higher-order asymptotic freedom corrections are discussed in detail. Both

Asymptotically free gauge theories. I

Asymptotically free gauge theories of the strong interactions are constructed and analyzed. The reasons for doing this are recounted, including a review of renormalization-group techniques and their

A three-dimensional model for quark and gluon jets

Based on the assumption that a color force-field has a stringlike character (like a stretchedout bag_ with no excited degrees of freedom transverse to the field direction (which is strongly supported

QCD and Collider Physics

Preface 1. Fundamentals of QCD 2. Asymptotic freedom and confinement 3. QCD in electron-positron annihilation 4. Deep inelastic scattering 5. Parton branching and jet simulation 6. Jet properties
...