Results 81 to 90 of about 3,202 (225)
Nonperturbative vacuum and hard scattering processes [PDF]
, 1980 A number of interesting suggestions for the QCD nonperturbative vacuum have been advocated in recent years by a group of people in Copenhagen. Some of the main ideas are briefly reviewed.
Sakai, N.
core
Nonperturbative evolution of parton quasi-distributions [PDF]
, 2017 Using the formalism of parton virtuality distribution functions (VDFs) we establish a connection between the transverse momentum dependent distributions (TMDs) F(x,k⊥2) and quasi-distributions (PQDs) Q(y,p3) introduced recently by X.
Radyushkin, A. V., A.V. Radyushkin
core +2 more sources
Numerical study of multiparticle scattering in λϕ 4 theory
Journal of High Energy Physics, 2018 We study numerically classical collisions of waves in λϕ 4 theory. These processes correspond to multiparticle scattering in the semiclassical regime.
S. V. Demidov, B. R. Farkhtdinov
doaj +1 more source
|Vub| determination and testing of lepton flavour universality in semileptonic Bc → D(∗) decays
Journal of High Energy Physics, 2020 In light of prospects for measurements of B c → D (∗) lv decays in the upcoming Upgrade II of the LHC, we show that by using calculated B c → D (∗) form factors a competitive extraction of the |V ub | CKM matrix element from the B c → Dμ v ¯ μ $$ {B}_c\
Domagoj Leljak, Blaženka Melić
doaj +1 more source
Nonperturbative effects in the proton sea
, 1999 8 pages, 5 eps-figures. Talk given at the 6th INT / JLAB Workshop on Exclusive and Semiexclusive Processes at High Momentum Transfer, Newport News, VA, 19-23 May ...
Schäfer, W., Speth, J.
openaire +2 more sources
Nonperturbative effects in QCD at finite temperature and density [PDF]
Physics of Particles and Nuclei, 1999 These lecture notes illustrate the application of Dyson-Schwinger equations in QCD. The extensive body of work at zero temperature and chemical potential is represented by a selection of contemporary studies that focus on solving the Bethe-Salpeter equation, deriving an exact mass formula in QCD that describes light and heavy pseudoscalar mesons ...
openaire +2 more sources
Merging van der Waals Materials and Optical Metasurfaces for Cavity Quantum Electrodynamics
Nanophotonics, Volume 15, Issue 5, 16 March 2026.Flat optical metasurfaces supporting quasi‐bound states in the continuum (qBIC) enable cavity‐like, high‐Q resonances in ultrathin nanostructures. This perspective explores the emergence of cavity quantum electrodynamics in qBIC metasurfaces, specifically those made from ultrathin van der Waals nanostructures, where cavities and emitters are seamlessly
Luca Sortino +2 more
wiley +1 more source
Triple crossing positivity bounds for multi-field theories
Journal of High Energy Physics, 2021 We develop a formalism to extract triple crossing symmetric positivity bounds for effective field theories with multiple degrees of freedom, by making use of su symmetric dispersion relations supplemented with positivity of the partial waves, st null ...
Zong-Zhe Du, Cen Zhang, Shuang-Yong Zhou
doaj +1 more source
Fortschritte der Physik, Volume 74, Issue 3, March 2026.ABSTRACT We propose a manifestly duality‐invariant, Lorentz‐invariant, and local action to describe quantum electrodynamics in the presence of magnetic monopoles that derives from Sen's formalism. By employing field strengths as the dynamical variables, rather than potentials, this formalism resolves longstanding ambiguities in prior frameworks.
Aviral Aggarwal +2 more
wiley +1 more source
Illustrated study of the semiholographic nonperturbative framework [PDF]
, 2017 Semiholography has been proposed as an effective nonperturbative framework which can consistently combine perturbative and nonperturbative effects for theories like QCD.
Mukhopadhyay, Ayan +10 more
core +1 more source