STI Publications - View Publication Form #20903

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Publication Information
Title Spin-orbit correlations in the nucleon in the large-Nc limit
Abstract We study the twist-3 spin-orbit correlations of quarks described by the nucleon matrix elements of the parity-odd rank-2 tensor QCD operator (the parity-odd partner of the QCD energy-momentum tensor). Our treatment is based on the effective dynamics emerging from the spontaneous breaking of chiral symmetry and the mean-field picture of the nucleon in the large-Nc limit. The twist-3 QCD operators are converted to effective operators, in which the QCD interactions are replaced by spin-flavor-dependent chiral interactions of the quarks with the pion field. We compute the nucleon matrix elements of the twist-3 effective operators and discuss the role of the chiral interactions in the spin-orbit correlations. We derive the first-quantized representation in the mean-field picture and develop a quantum-mechanical interpretation. The chiral interactions give rise to new spin-orbit couplings and qualitatively change the correlations compared to the quark model picture. We also derive the twist
Author(s) Jun-Young Kim , Ho-Yeon Won, Hyun-Chul Kim, Christian Weiss
Publication Date September 2024
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-24-4002 OSTI Number: 2447357
LANL Number: Other Number: DOE/OR/23177-7421
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physical Review D
Refereed Yes
Volume 110
Issue
Page(s) 054026
Attachments/Datasets/DOI Link
Document(s)
spinorbit.pdf (STI Document)
PhysRevD.110.054026.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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