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Nuclear Theory·nucl-th

Friday·November 14, 2025

11 papers—5 primary·6 cross-listed

All11Primary5Cross-lists6
  1. 06

    [Submitted on 10 Nov 2025] (cross-list from physics.plasm-ph)

    The Non-thermal Energy Window for Laser-Driven Nuclear Reactions

    Eunseok Hwang · Heamin Ko · Myung-Ki Cheoun · Dukjae Jang

    Laser-driven nuclear reactions proceed in non-equilibrium plasma conditions, producing ion energy distributions that are not Maxwellian. Nevertheless, fusion yields in such experiments are often interpreted using effective thermal descriptions based on the conventional Gamow window. In this work, we develop an analytical framework for evaluating nuclear reaction rates for non-thermal ions accelerated by the Target Normal Sheath Acceleration (TNSA) mechanism. Using a self-similar plasma expansion model, we derive a closed form expression for an effective reaction energy window and the corresponding fusion reactivity. The resulting effective energies differ systematically from those predicted by thermal models, indicating limitations of interpretations based on the conventional Gamow window in laser-driven environments. This framework provides a quantitative basis for analyzing fusion yields and for designing laser-driven nuclear experiments.

    Comments:
    14 pages, 4 figures
    Subjects:
    Plasma Physics (physics.plasm-ph); Solar and Stellar Astrophysics (astro-ph.SR); Nuclear Theory (nucl-th)
    arXiv:
    2511.06657 [pdf]
    Nucl.Fusion(2026)·0 citations
  2. 07

    [Submitted on 12 Nov 2025] (cross-list from hep-th)

    Gauged Soft Recursion: On-Shell Construction of Goldstone-Gauge Amplitudes

    Ian Low🇺🇸 · Ming-Lei Xiao🇨🇳 · Yu-Hui Zheng🇰🇷

    We present a new on-shell recursion relation for scattering amplitudes involving Nambu-Goldstone bosons with a gauged unbroken symmetry. A central challenge is that gauge interactions break Adler's zero condition for charged scalars, invalidating the standard soft recursion. To overcome this, we introduce a ``gauged soft recursion'' that leverages the soft theorems of the gauge bosons themselves, combined with a novel decomposition of amplitudes into gauge-invariant components where Adler's zero is partially restored. The formalism, which also incorporates internal gauge bosons via angular momentum constraints, enables the systematic construction of tree-level amplitudes with arbitrary numbers of Goldstone bosons and gauge bosons in both Abelian and non-Abelian theories, as we demonstrate with explicit examples.

    Comments:
    35 pages, 5 figures
    Subjects:
    High Energy Physics — Theory (hep-th); High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2511.09403 [pdf]
    JHEP(2026)·1 citation
  3. 08

    [Submitted on 12 Nov 2025] (cross-list from hep-th)

    Geometry Induced Chiral Transport and Entanglement in Background

    Kazuki Ikeda🇺🇸 · Yaron Oz🇮🇱

    We study the real-time chiral dynamics of Dirac fermions in AdS and AdS black hole backgrounds. The spacetime curvature generates a spin connection term, acting as an effective magnetic field and a position-dependent chiral chemical potential. This leads to strongly asymmetric wave propagation, confined within an inhomogeneous Lieb-Robinson cone. The front velocities decrease with increasing fermion mass and horizon radius. The entanglement entropy grows inside the causal cone, and it saturates due to screening/dephasing in the finite inhomogeneous chain. In dipole-dipole collision, the central bipartite entropy rises when the inward Lieb-Robinson fronts intersect, forming a bright ridge in the local entanglement profile. Charge and current correlators peak at the front arrival, providing a real-time diagnostic of chiral transport. These results establish a causality-respecting framework, linking curvature and horizons to transport and entanglement in (1+1)-dimensional fermionic matter.

    Comments:
    25 pages, 10 figures
    Subjects:
    High Energy Physics — Theory (hep-th); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th); Quantum Physics (quant-ph)
    arXiv:
    2511.09714 [pdf]
    JHEP(2026)·4 citations
  4. 09

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

    CP violation

    Alexey A Petrov🇺🇸

    CP violation, which involves breaking the combined charge-conjugation (C) and parity (P) symmetries, is essential for understanding the observed matter-antimatter asymmetry in the universe. It is a key feature of the Standard Model, originating from complex phases in the Cabibbo-Kobayashi-Maskawa quark mixing matrix. Despite the successes of the SM, the amount of CP violation it predicts is not enough to explain baryogenesis, prompting searches for new sources of CP violation in other areas of particle physics. This article offers a pedagogical introduction to the theoretical foundations of C, P, and T symmetries and their combinations. It also emphasizes the importance of CP violation in modern particle physics and how it can be used to explore New Physics.

    Comments:
    Review article prepared for "Encyclopedia of Particle Physics", 12 pages, 1 figure
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Experiment (hep-ex); Nuclear Theory (nucl-th)
    arXiv:
    2511.09739 [pdf]
    0 citations
  5. 10

    [Submitted on 13 Nov 2025] (cross-list from cond-mat.quant-gas)

    Generalized Gross-Pitaevskii Equation for 2D Bosons with Attractive Interactions

    Michał Suchorowski · Fabian Brauneis · Hans-Werner Hammer · Michał Tomza · Artem G. Volosniev

    We introduce a generalized Gross-Pitaevskii equation that provides a nonlinear framework for studying two-dimensional (2D) attractive Bose systems. Its defining feature is the logarithmic density dependence of the coupling constant, which breaks the scale invariance inherent in the standard mean-field equations. This framework allows straightforward calculations of the system properties arising from the quantum anomaly. As a first illustration, we study universal bound states in free space, commonly referred to as quantum droplets. Then, we analyze breathing modes and quench dynamics in trapped systems, paving the way for a systematic exploration of non-equilibrium phenomena in 2D attractive Bose systems. Finally, we predict the existence of universal excited states, including vortex configurations, which may be more accessible to experimental investigation than the ground state. Our results provide a robust theoretical foundation for studying both static and dynamical properties of finite systems, and offer guidance for the design of future experiments.

    Subjects:
    Quantum Gases (cond-mat.quant-gas); nlin.PS (nlin.PS); Nuclear Theory (nucl-th); physics.atm-clus (physics.atm-clus)
    arXiv:
    2511.10115 [pdf]
    PRL(2026)·0 citations
  6. 11

    [Submitted on 13 Nov 2025] (cross-list from hep-ph)

    Possible and resonances by solving Schrödinger equation

    Bao-Xi Sun · Qin-Qin Cao · Ying-Tai Sun

    The one-pion exchange interaction between the kaon and the vector antikaon is investigated by solving the Schrödinger equation in the S-wave approximation. In addition to the particle , another bound state of is obtained, which is approximately 9 MeV below the threshold of and labeled for convenience in this manuscript. Under the outgoing wave condition, two resonance states of are produced with different coupling constants fixed with the binding energies of and , respectively. Both of the resonance states are located in the vicinity of 1400 MeV, and thus it is reasonable to assume that these two resonance states correspond to the particle in the review of the Particle Data Group simultaneously. This method is extended to study the system analogously. When the particle is treated as a bound state of , the particles , and can be obtained as solutions of the Schrödinger equation under the outgoing wave condition, which implies the spin and parity of these particles are all .

    Comments:
    6 pages,3 figures, to be published in Proceedings of The 21st International Conference on Hadron Spectroscopy and Structure(HADRON2025), Osaka University, Japan, 27-31 March, 2025
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2511.10145 [pdf]
    PoS(2026)·0 citations

Affiliations

first authorsco-authorsvia INSPIRE