The spin structure of the nucleon

CA Aidala, SD Bass, D Hasch, GK Mallot - Reviews of Modern Physics, 2013 - APS
This article reviews our present understanding of QCD spin physics: the proton spin puzzle
and new developments aimed at understanding the transverse structure of the nucleon …

On the physics potential to study the gluon content of proton and deuteron at NICA SPD

A Arbuzov, A Bacchetta, M Butenschoen… - Progress in Particle and …, 2021 - Elsevier
Abstract The Spin Physics Detector (SPD) is a future multipurpose experiment foreseen to
run at the NICA collider, which is currently under construction at the Joint Institute for Nuclear …

The COMPASS experiment at CERN

P Abbon, E Albrecht, VY Alexakhin… - Nuclear Instruments and …, 2007 - Elsevier
The COMPASS experiment makes use of the CERN SPS high-intensity muon and hadron
beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons …

Extraction of spin-dependent parton densities and their uncertainties

D de Florian, R Sassot, M Stratmann… - Physical Review D …, 2009 - APS
We discuss techniques and results for the extraction of the nucleon's spin-dependent parton
distributions and their uncertainties from data for polarized deep-inelastic lepton-nucleon …

The deuteron spin-dependent structure function g1d and its first moment

VY Alexakhin, Y Alexandrov, GD Alexeev, M Alexeev… - Physics Letters B, 2007 - Elsevier
We present a measurement of the deuteron spin-dependent structure function g1d based on
the data collected by the COMPASS experiment at CERN during the years 2002–2004. The …

Global analysis of helicity parton densities and their uncertainties

D de Florian, R Sassot, M Stratmann, W Vogelsang - Physical Review Letters, 2008 - APS
We present a new analysis of the helicity parton distributions of the nucleon. The analysis
takes into account the available data from inclusive and semi-inclusive polarized deep …

Gluons and the quark sea at high energies: Distributions, polarization, tomography

D Boer, M Diehl, R Milner, R Venugopalan… - arxiv preprint arxiv …, 2011 - arxiv.org
This report is based on a ten-week program on" Gluons and the quark sea at high-energies",
which took place at the Institute for Nuclear Theory in Seattle in Fall 2010. The principal aim …

A new measurement of the Collins and Sivers asymmetries on a transversely polarised deuteron target

ES Ageev, VY Alexakhin, Y Alexandrov, GD Alexeev… - Nuclear Physics B, 2007 - Elsevier
New high precision measurements of the Collins and Sivers asymmetries of charged
hadrons produced in deep-inelastic scattering of muons on a transversely polarised 6LiD …

Quark and gluon spin and orbital angular momentum in the proton

S Xu, C Mondal, X Zhao, Y Li, JP Vary… - Physical Review D, 2023 - APS
We address the proton spin puzzle with a fully relativistic and nonperturbative approach
based on a light-front quantized Hamiltonian with quantum chromodynamics (QCD) input …

Gluon distributions in the proton in a light-front spectator model

D Chakrabarti, P Choudhary, B Gurjar, R Kishore… - Physical Review D, 2023 - APS
We formulate a light-front spectator model for the proton incorporating the gluonic degree of
freedom. In this model, at high energy scattering of the proton, the active parton is a gluon …