PaperPanorama
FAQ

Nuclear Theory·nucl-th

Wednesday·May 14, 2025

4 papers—2 primary·2 cross-listed

All4Primary2Cross-lists2
  1. 03

    [Submitted on 12 May 2025] (cross-list from hep-ph)

    Dynamical Up-quark Mass Generation in QCD-like theories

    Csaba Csáki🇺🇸 · Tuhin S. Roy🇮🇳 · Maximilian Ruhdorfer🇺🇸 · Taewook Youn🇺🇸

    We calculate the dynamically generated up quark mass in some QCD-like theories with light flavors, obtained from supersymmetric QCD perturbed via anomaly mediated supersymmetry breaking. We match the low-energy effective theory to the traditional chiral Lagrangian of QCD and determine the coefficients to next-to-leading order in chiral perturbation theory, while also varying the number of colors . We find that the dynamically generated up quark mass vanishes in the large limit, and is small for , however for there is a sizeable contribution. While our results are reliable only for small supersymmetry breaking, we observe that extrapolating the result to large supersymmetry breaking would lead to a dynamical up quark mass that is large enough to account for its entire physical mass.

    Comments:
    7 pages, 1 figure
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2505.07953 [pdf]
    PRD(2026)·2 citations
  2. 04

    [Submitted on 13 May 2025] (cross-list from quant-ph)

    An algebraic solution of Dirac equation on a static curved space-time

    M. Salazar-Ramíreza · R. D. Motab · D. Ojeda-Guillén · A. González-Cisneros

    We present exact solutions of the Dirac equation in static curved space-time using two distinct algebraic approaches. The first method employs algebra operators together with the tilting transformation, enabling the derivation of the energy spectrum and eigenfunctions for both the Hydrogen atom and the Dirac-Morse oscillator. The second approach, based on the Schrödinger factorization method, extends the analysis to three representative potentials: the hydrogen atom, the Dirac-Morse oscillator, and a linear radial potential. Although structurally different from those obtained in the first method, the resulting operators in this approach also close the algebra and, through representation theory, yield the corresponding energy spectra and eigenfunctions.

    Comments:
    17 pages, 31 references
    Subjects:
    Quantum Physics (quant-ph); Nuclear Theory (nucl-th); Atomic Physics (physics.atom-ph)
    arXiv:
    2505.08726 [pdf]
    Mod.Phys.Lett.A(2025)·0 citations

Affiliations

first authorsco-authorsvia INSPIRE