Results 1 to 10 of about 582,899 (222)
Nonperturbative effects in deformation quantization [PDF]
arXiv, 2000 The Cattaneo-Felder path integral form of the perturbative Kontsevich deformation quantization formula is used to explicitly demonstrate the existence of nonperturbative corrections to na\"\i ve deformation quantization.
Vipul Periwal
arxiv +5 more sources
Nonperturbative Effects in the Nonrelativistic Hadron Scattering [PDF]
Phys.Lett. B392 (1997) 457-462, 1996 Starting from the gauge-invariant quark-antiquark Green function the expression for the nonrelativistic meson scattering amplitude is obtained and the nonperturbative form of this amplitude is discussed.
Vladimir Shevchenko
arxiv +7 more sources
More analytic bootstrap: nonperturbative effects and fermions [PDF]
Journal of High Energy Physics, 2019 We develop the analytic bootstrap in several directions. First, we discuss the appearance of nonperturbative effects in the Lorentzian inversion formula, which are exponentially suppressed at large spin but important at finite spin.
Soner Albayrak +2 more
doaj +8 more sources
On the Nature of Nonperturbative Effects in Stabilized 2D Quantum Gravity [PDF]
Mod.Phys.Lett. A9 (1994) 2253-2264, 1993 We remark that the weak coupling regime of the stochastic stabilization of 2D quantum gravity has a unique perturbative vacuum, which does not support instanton configurations. By means of Monte Carlo simulations we show that the nonperturbative vacuum is also confined in one potential well. Nonperturbative effects can be assessed in the loop equation.
Oscar Diego, J. González
arxiv +9 more sources
Enhanced Nonperturbative Effects in Z Decays to Hadrons [PDF]
Phys.Rev. D70 (2004) 034014, 2003 We use soft collinear effective field theory (SCET) to study nonperturbative strong interaction effects in Z decays to hadronic final states that are enhanced in corners of phase space. These occur, for example, in the jet energy distribution for two jet events near E_J=M_Z/2, the thrust distribution near unity and the jet invariant mass distribution ...
C. Bauer +3 more
arxiv +6 more sources
Determination of HQET nonperturbative matrix elements with renormalon subtraction using Fourier transform [PDF]
EPJ Web of Conferences, 2022 As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determine nonperturbative effects and to incorporate them into theoretical ...
Takaura Hiromasa
doaj +2 more sources
Nonperturbative effects in neutrino magnetic moments [PDF]
Physical Review D, 2022 Typos corrected, affiliation, appendices and references added, matches published version in ...
Feng-Zhi Chen, Min-Di Zheng, H. H. Zhang
openalex +3 more sources
Nonperturbative QCD Effects in High Energy Collisions [PDF]
arXiv, 1994 High energy hadron-hadron collisions are discussed. It is argued that soft collisions should involve in an essential way nonperturbative QCD. A way is outlined how to calculate properties of high energy elastic hadron-hadron scattering using field theoretic methods.
Otto Nachtmann
arxiv +3 more sources
Enhanced Nonperturbative Effects in Jet Distributions [PDF]
Physical Review Letters, 2003 Significant changes made. The first moment does not vanish--the paper has been modified to reflect this.
C. Bauer +2 more
openalex +5 more sources
Nonperturbative Effects from the Resummation of Perturbation Theory [PDF]
Phys.Rev. D66 (2002) 034027, 2001 Using the general argument in Borel resummation of perturbation theory that links the divergent perturbation theory to the nonperturbative effect we argue that the nonperturbative effect associated with the perturbation theory should have a branch cut only along the positive real axis in the complex coupling plane.
arxiv +5 more sources