Zobrazeno 1 - 10
of 423
pro vyhledávání: '"Renormalon"'
Autor:
Zinn-Justin, Jean, author
Publikováno v:
Quantum Field Theory and Critical Phenomena : Fifth Edition, 2021, ill.
Externí odkaz:
https://doi.org/10.1093/oso/9780198834625.003.0018
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 6, Pp 1-23 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
Infrared renormalons in Quantum Chromodynamics are associated with non-perturbative corrections to short distance observables. Linear renormalons, i.e. such that the associated non-perturbative corrections scale like one inverse power of the hard sca
Autor:
LIMATOLA, GIOVANNI
Al fine di descrivere appropriatamente le osservabili studiate tramite collisori adronici e/o leptonici, risulta cruciale una corretta comprensione delle correzioni non perturbative (che si manifestano come correzioni di potenza), lineari nel rapport
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1299::4f35aa38e599f4025880e72f9d599111
https://hdl.handle.net/10281/402371
https://hdl.handle.net/10281/402371
Autor:
Hiromasa Takaura
Publikováno v:
The European Physical Journal Special Topics. 230:2593-2600
We give a brief review of the current understanding of renormalons of the static QCD potential in coordinate and momentum spaces. We also reconsider estimate of the normalization constant of the $u=3/2$ renormalon and propose a new way to improve the
Publikováno v:
Journal of High Energy Physics
We investigate the analytic properties of the fixed charge expansion for a number of conformal field theories in different space-time dimensions. The models investigated here are $O(N)$ and $QED_3$. We show that in $d=3-\epsilon$ dimensions the contr
Autor:
V. S. Molokoedov, Andrei L. Kataev
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 12, Pp 1-21 (2020)
European Physical Journal
European Physical Journal
The asymptotic structure of the QCD perturbative relation between the on-shell and$$\overline{{\mathrm{MS}}}$$MS¯heavy quark masses is studied. We estimate the five and six-loop contributions to this relation by three different techniques. First, th
Autor:
Hiromasa Takaura
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-44 (2020)
Journal of High Energy Physics
Journal of High Energy Physics
We present a formulation to give renormalon-free predictions consistently with fixed order perturbative results. The formulation has a similarity to Lee's method in that the renormalon-free part consists of two parts: one is given by a series expansi
Autor:
Tomas Reis, Marcos Marino
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-35 (2020)
Journal of High Energy Physics
Journal of High Energy Physics
According to standard lore, perturbative series of super-renormalizable theories have only instanton singularities. In this paper we show that two-dimensional scalar theories with a spontaneously broken $O(N)$ symmetry at the classical level, which a
Publikováno v:
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-32 (2021)
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-32 (2021)
We present a determination of the perturbative QCD (pQCD) coupling using the V+A channel ALEPH $\tau$-decay data. The determination involves the double-pinched Borel-Laplace Sum Rules and Finite Energy Sum Rules. The theoretical basis is the Operator
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-56 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
In theories with renormalons the perturbative series is factorially divergent even after restricting to a given order in $1/N$, making the $1/N$ expansion a natural testing ground for the theory of resurgence. We study in detail the interplay between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0c1d5e3363759908a0804b34e1385b0
http://arxiv.org/abs/2108.02647
http://arxiv.org/abs/2108.02647