782 citations · 10.3k across the 289 of their papers we have counts for
9 papers · 1 filter
QCD at the amplitude level: Fock state interference in heavy quark electroproduction
Valery E. Lyubovitskij, Ivan Schmidt
Quantum chromodynamics (QCD) rigorously predicts the existence of both nonperturbative intrinsic and perturbative extrinsic heavy quark contents of nucleons. In this article we dis…
Spin Density Matrix Elements in Exclusive Meson Muoproduction
G. D. Alexeev, M. G. Alexeev, C. Alice +186
We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive meson muoproduction at COMPASS using 160~GeV/ polarised and beams im…
Dark SU(2) Stueckelberg portal
Valery E. Lyubovitskij, Alexey S. Zhevlakov, Aliaksei Kachanovich +1
We study the non-abelian extension of the Stueckelberg portal, which plays a role of the mediator between the Standard Model (SM) and Dark Sector (DS). This port…
Heavy quark contribution to the electromagnetic properties of the nucleon
Stanley J. Brodsky, Valery E. Lyubovitskij, Ivan Schmidt
Quantum chromodynamics (QCD) predicts the existence of both nonperturbative intrinsic and perturbative extrinsic heavy quark contributions to the fundamental structure of hadrons.…
Probing -parity violation in -meson decays to a baryon and a light neutralino
Claudio O. Dib, Juan Carlos Helo, Valery E. Lyubovitskij +3
We propose a search for meson decays to a baryon plus missing energy at the Belle II experiment to probe supersymmetry with a GeV-scale lightest neutralino and…
Predictions for the Sivers Single-Spin Asymmetry from Holographic QCD
Valery E. Lyubovitskij, Ivan Schmidt, Stanley J. Brodsky
A new approach to nonperturbative QCD, holographic light-front QCD, provides a comprehensive model for hadron dynamics and spectroscopy, incorporating color confinement, a universa…
Search for a light muon-philic with the NA64- experiment at CERN
Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +58
The extension of Standard Model made by inclusion of additional gauge symmetry can explain the difference between the measured and the predicted value of the muon…
Implication of the dark axion portal for the EDM of fermions and dark matter probing with NA64, NA64, LDMX, $\mbox{M}^3$, and BaBar
Alexey S. Zhevlakov, Dmitry V. Kirpichnikov, Valery E. Lyubovitskij
The link between ordinary Standard model (SM) photon and both dark photon and axion like particle (ALP) can be introduced through the dark axion portal coupling. Given the dark axi…
Meson masses and decay constants in holographic QCD consistent with ChPT and HQET
Valery E. Lyubovitskij, Ivan Schmidt
We focus on the chiral and heavy quark mass expansion of mesons masses and decay constants. We propose a light-front QCD formalism for the evaluation of these quantities, consisten…