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Insights on proton structure from lattice QCD: The twist-3 parton distribution function <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>g</mml:mi><mml:mi>T</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mi>x</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>

Shohini Bhattacharya, Krzysztof Cichy, Martha Constantinou, Andreas Metz, Aurora Scapellato, Fernanda Steffens

2020Physical review. D/Physical review. D.49 citationsDOIOpen Access PDF

Abstract

Using the recently developed quasidistribution approach, the authors present the first lattice-QCD computation of the twist-3 parton distribution function ${g}_{T}(x)$. They also compute the helicity distribution ${g}_{1}$ and so can test the Wandzura-Wilczek approximation for ${g}_{T}$.

Topics & Concepts

PartonTwistQuantum chromodynamicsPhysicsParticle physicsDistribution functionLattice QCDLattice (music)MathematicsGeometryThermodynamicsAcousticsParticle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research
Insights on proton structure from lattice QCD: The twist-3 parton distribution function <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>g</mml:mi><mml:mi>T</mml:mi></mml:msub><mml:mo stretchy="false">(</mml:mo><mml:mi>x</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math> | Litcius