231 citations · 1.3k across the 38 of their papers we have counts for
19 papers · 1 filter
Monopoles and vortices in Yang-Mills plasma
M. N. Chernodub, V. I. Zakharov
We discuss the role of magnetic degrees of freedom in Yang-Mills plasma at temperatures above and of order of the critical temperature Tc. While at zero temperature the magnetic de…
Hints on the power corrections from current correlators in x-space
S. Narison, V. I. Zakharov
We consider an interpretation of the recent lattice data on the current-current correlators in the x-space. The data indicate rather striking difference between (axial)vector and (…
On the heavy monopole potential in gluodynamics
M. N. Chernodub, F. V. Gubarev, M. I. Polikarpov +1
We discuss predictions for the interaction energy of the fundamental monopoles in gluodynamics introduced via the 't Hooft loop. At short distances, the heavy monopole potential is…
On the Emerging Phenomenology of <(A_μ)^2>
F. V. Gubarev, V. I. Zakharov
We discuss phenomenology of the vacuum condensate <(A_μ)^2> in pure gauge theories, where A_μis the gauge potential. Both Abelian and non-Abelian cases are considered. In case of t…
Confinement and short distance physics
M. N. Chernodub, F. V. Gubarev, M. I. Polikarpov +1
We consider non-perturbative effects at short distances in theories with confinement. The analysis is straightforward within the Abelian models in which the confinement arises on c…
Physics of the Power Corrections in QCD
F. V. Gubarev, M. I. Polikarpov, V. I. Zakharov
We review the physics of the power corrections to the parton model. In the first part, we consider the power corrections which characterize the infrared sensitivity of Feynman grap…
Short-distance tachyonic gluon mass and 1/Q^2 corrections
K. G. Chetyrkin, Stephan Narison, V. I. Zakharov
We consider the assumption that a tachyonic gluon mass imitates short-distance nonperturbative physics of QCD. The phenomenological implications include modifications of the QCD su…
Cancellation of 1/m_Q Corrections to the Inclusive Decay Width of a Heavy Quark
A. Sinkovics
I review the cancellation of non-perturbative 1/m_Q corrections to the heavy quark inclusive decay width. I summarize the results of an explicit second loop order calculation in pe…
Cancellation of Corrections to the Inclusive Decay Width of a Heavy Quark
A. Sinkovics, R. Akhoury, V. I. Zakharov
We consider the infrared sensitivity of the inclusive heavy quark decay width in perturbation theory. It is shown by explicit calculations to the second loop order (when the non-ab…
On Non Perturbative Corrections to the Potential for Heavy Quarks
R. Akhoury, V. I. Zakharov
We discuss non perturbative corrections to the Coulomb-like potential of heavy quarks at short distances. We consider both the standard framework provided by infrared renormalons a…
The Physics of the Ultraviolet Renormalon
R. Akhoury, V. I. Zakharov
We review the physics of the ultraviolet renormalon. This mini-review is intended to be a sequel to the review by the same authors at the "QCD '96" conference last year (hep-ph/961…
Renormalons and 1/Q^2 Corrections
R. Akhoury, V. I. Zakharov
We argue that the appearance of the Landau pole in the running coupling of QCD introduces 1/Q^2 power corrections in current correlation functions. These terms are not accounted fo…
The KLN Theorem and Soft Radiation in Gauge Theories: Abelian Case
R. Akhoury, M. G. Sotiropoulos, V. I. Zakharov
We present a covariant formulation of the Kinoshita, Lee, Nauenberg (KLN) theorem for processes involving the radiation of soft particles. The role of the disconnected diagrams is…
A Quick Look at Renormalons
R. Akhoury, V. I. Zakharov
We present a sketchy review of renormalon-based phenomenology. In particular, the leading, 1/Q corrections to various observables, KLN cancellations for power-suppressed correction…
Power Corrections and KLN Cancellations
R. Akhoury, L. Stodolsky, V. I. Zakharov
We consider perturbative expansions in theories with an infrared cutoff . The infrared sensitive pieces are defined as terms nonanalytic in the infinitesimal and powers of…
Power Corrections in QCD: A Matter of Energy Resolution
R. Akhoury, V. I. Zakharov
We consider power-like corrections in QCD which can be viewed as power surpressed infrared singularities. We argue that the presence of these singularities depends crucially on the…
Leading Power Corrections in QCD: From Renormalons to Phenomenology
R. Akhoury, V. I. Zakharov
We consider corrections to hard processes in QCD where Q is a large mass scale, concentrating on shape variables in annihilation. While the evidence for such cor…
On the Universality of the Leading, Power Corrections in QCD
R. Akhoury, V. I. Zakharov
We discuss corrections to hard processes in QCD where is a large mass parameter like the total energy in annihilation. The main problem we address ourselves to i…
Bloch-Nordsieck cancellations beyond logarithms in heavy particle decays
M. Beneke, V. M. Braun, V. I. Zakharov
We investigate the one-loop radiative corrections to the semileptonic decay of a charged particle at finite gauge boson mass. Extending the Bloch-Nordsieck cancellation of infrared…