STI Publications - View Publication Form #18207
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Publication Information
| Title | QCD angular momentum in N-Delta transitions | ||||
| Abstract | N -> Delta transitions offer new possibilities for exploring the isovector component of the QCD quark angular momentum (AM) operator causing the J^{u - d} flavor asymmetry in the nucleon. We extend the concept of QCD AM to transitions between baryon states, using light-front densities of the energy-momentum tensor in transversely localized states. We calculate the N -> Delta transition AM in the 1/N_c expansion, connect it with the J^{u - d} flavor asymmetry in the nucleon, and estimate the values using lattice QCD results. In the same setup we connect the transition AM to the transition GPDs sampled in hard exclusive electroproduction processes with N -> Delta transitions, enabling experimental study of the transition AM. | ||||
| Author(s) | Jun-Young Kim  , Ho-Yeon Won, Jose Goity, Christian Weiss |
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| Publication Date | July 2023 | ||||
| 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 |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physics Letters B |
| Refereed | No |
| Volume | |
| Issue | |
| Page(s) | 138083 |
Attachments/Datasets/DOI Link
| Document(s) |
am_ndelta.pdf
(STI Document)
1-s2.0-S0370269323004173-main.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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