Double spin asymmetries through QCD instantons

2014/04/24 by Yachao Qian, Ismail Zahed, Ismaïl Zahed · 1 citation
Physics and Astronomy · #Asymmetry #Condensed matter physics #High-Energy Particle Collisions Research #Instanton #Particle physics #Particle physics theoretical and experimental studies #Pauli exclusion principle #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Spin (aerodynamics) #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.90.114012

published as Phys. Rev. D 90, 114012 (2014) · 7 pages, 9 figures

arxiv created 2014/04/24 · openalex publication_date 2014/12/08 · arxiv updated 2014/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We revisit the large instanton contribution to the gluon Pauli form factor of the constituent quark noted by Kochelev. We check that it contributes sizably to the single spin asymmetry in polarized p_\ensuremath\uparrowp\ensuremath→\ensuremathπX. We use it to predict a large double spin asymmetry in doubly polarized p_\ensuremath\uparrowp_\ensuremath\uparrow\ensuremath→\ensuremathπ\ensuremathπX.

Citations

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Cited by

• Spin physics through QCD instantons