Results 121 to 130 of about 582,899 (222)

General bootstrap equations in 4D CFTs

open access: yesJournal of High Energy Physics, 2018
We provide a framework for generic 4D conformal bootstrap computations. It is based on the unification of two independent approaches, the covariant (embedding) formalism and the non-covariant (conformal frame) formalism.
Gabriel Francisco Cuomo   +2 more
doaj   +1 more source

Infrared renormalon contributions in gluon TMD at small-x

open access: yesNuclear Physics B, 2020
The nonperturbative uncertainties from the infrared renormalons in the (color dipole) gluon distribution is estimated. It is shown that non-linear saturation effects at small-x shift the first IR pole at the Borel plane from 2/β2 to 1/β2.
Nahid Vasim, Raktim Abir
doaj  

Modular properties of surface operators in N $$ \mathcal{N} $$ = 2 SU(2) SQCD

open access: yesJournal of High Energy Physics, 2019
We study half-BPS surface operators in N $$ \mathcal{N} $$ = 2 supersymmetric QCD in four dimensions with gauge group SU(2) and four fundamental flavours.
Sourav Ballav, Renjan Rajan John
doaj   +1 more source

Exact effective action for N=1 supersymmetric theories [PDF]

open access: yesarXiv, 1999
We investigate nonperturbative effects in N=1 supersymmetric theories and propose a new expression for the effective action, which correctly reproduces quantum anomalies and agrees with the transformation law of instanton measure. Actually the result is a nonperturbative extension of Veneziano-Yankielowitch effective Lagrangian.
arxiv  

Effects of nonperturbatively improved dynamical fermions in QCD at fixed lattice spacing [PDF]

open access: green, 2002
Chris Allton   +18 more
openalex   +1 more source

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