Flavor-Dependent Dynamical Spin-Orbit Coupling in Light-Front Holographic QCD: A New Approach to Baryon Spectroscopy

[2505.06722] Flavor-Dependent Dynamical Spin-Orbit Coupling in Light-Front Holographic QCD: A New Approach to Baryon Spectroscopy Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search High Energy Physics - Phenomenology arXiv:2505.06722 (hep-ph) [Submitted on 10 May 2025] Title: Flavor-Dependent Dynamical Spin-Orbit Coupling in Light-Front Holographic QCD: A New Approach to Baryon Spectroscopy Authors: Fidele J. Twagirayezu View a PDF of the paper titled Flavor-Dependent Dynamical Spin-Orbit Coupling in Light-Front Holographic QCD: A New Approach to Baryon Spectroscopy, by Fidele J. Twagirayezu View PDF HTML (experimental) Abstract: In this article, we propose a novel extension of Light-Front Holographic Quantum Chromodynamics (QCD) to study the effects of spin-orbit coupling on the baryon spectrum by introducing a flavor-dependent dynamical spin-orbit potential. This potential, modulated by the holographic coordinate and quark flavor, accounts for the mass hierarchy of quarks and the nonperturbative dynamics of confinement. By incorporating an exponentially decaying coupling that varies with the confinement scale, we capture the interplay between short-distance and long-distance spin-orbit interactions, particularly for heavy-light baryons. An optional coupling to holographic glueball fields further enriches the model, introducing nonperturbative QCD effects. The resulting modified light-front wave equation predicts flavor-dependent mass splittings and Regge trajectories, offering improved descriptions of both light and heavy baryon spectra. We discuss the implementation, parameter fitting, and testable predictions for experimental validation, particularly for heavy baryons observed at LHCb and Belle II. This approach bridges light and heavy quark dynamics, advancing the holographic modeling of baryon spectroscopy. Comments: 10 pages, 1 table(s) Subjects: High Energy Physics - Phenomenology (hep-ph) Cite as: arXiv:2505.06722 [hep-ph] (or arXiv:2505.06722v1 [hep-ph] for this version) https://doi.org/10.48550/arXiv.2505.06722 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Few-Body Systems 67, 24 (2026) Related DOI : https://doi.org/10.1007/s00601-026-02033-y Focus to learn more DOI(s) linking to related resources Submission history From: Fidele Twagirayezu [ view email ] [v1] Sat, 10 May 2025 18:16:14 UTC (16 KB) Full-text links: Access Paper: View a PDF of the paper titled Flavor-Dependent Dynamical Spin-Orbit Coupling in Light-Front Holographic QCD: A New Approach to Baryon Spectroscopy, by Fidele J. Twagirayezu View PDF HTML (experimental) TeX Source view license Current browse context: hep-ph < prev | next > new | recent | 2025-05 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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