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Nuclear Theory·nucl-th

Friday·September 26, 2025

8 papers—4 primary·4 cross-listed

All8Primary4Cross-lists4
  1. 01

    [Submitted on 25 Sept 2025]

    Bridging Quantum Computing and Nuclear Structure: Atomic Nuclei on a Trapped-Ion Quantum Computer

    Sota Yoshida🇯🇵 · Takeshi Sato🇯🇵 · Takumi Ogata🇯🇵 · Masaaki Kimura🇯🇵

    We demonstrate quantum simulations of strongly correlated nuclear many-body systems on the RIKEN-Quantinuum Reimei trapped-ion quantum computer, targeting ground states of oxygen, calcium, and nickel isotopes. By combining a hard-core-boson representation of the nuclear shell model with a pair-unitary coupled-cluster doubles ansatz, we achieve sub-percent relative error in the ground-state energies compared to noise-free statevector simulations. Our approach leverages symmetry-aware state preparation and particle-number post-selection to efficiently capture pairing correlations characteristic of systems with same-species nucleons. These findings highlight the viability of high-fidelity trapped-ion platforms for nuclear physics applications and provide a foundation for scaling to more complex nuclear systems.

    Comments:
    15 pages and 7 figures including supplemental material; Accepted version
    Subjects:
    Nuclear Theory (nucl-th); Quantum Physics (quant-ph)
    arXiv:
    2509.20642 [pdf]
    PRResearch(2026)·9 citations
  2. 02

    [Submitted on 25 Sept 2025]

    Nonlinear corrections to the nuclear heavy flavor structure functions

    F.Abdi🇮🇷 · B.Rezaei🇮🇷

    We study numerically the small- behaviour of the nuclear gluon distribution function at next-to-leading order (NLO) approximation of the Gribov-Levin-Ryskin-Mueller-Qiu, Zhu-Ruan-Shen (GLR-MQ-ZRS) nonlinear equation and quantify the impact of gluon recombination in the kinematic range of and respectively. The results are comparable to the Rausch-Guzey-Klasen (RGK) [J.Rausch, V.Guzey and M.Klasen, Phys. Rev. D 107, 054003 (2023)] nuclear gluon distributions and the nCTEQ15 parametrization at the corresponding values. Using the solutions of in the framework of the nonlinear GLR-MQ-ZRS evolution equation, the linear and nonlinear behavior of the charm structure functions of nuclei per nucleon and are considered. The results reveal that nonlinear corrections play an important role in charm nuclear reduced cross sections at small- and low values. The computed results are compared with experimental data from the H1 and ZEUS Collaborations.

    Comments:
    Will be appear in Phys.Rev.C
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    2509.20934 [pdf]
    PRC(2025)·0 citations
  3. 03

    [Submitted on 25 Sept 2025]

    Probing Initial State Clustering through Photon Anisotropic Flow in 7A TeV O+O Collisions at the LHC

    Sanchari Thakur🇮🇳 · Pingal Dasgupta🇭🇺 · Rupa Chatterjee🇮🇳 · Sinjini Chandra🇮🇳 · Sidharth K. Prasad🇮🇳

    The presence of clustered structures in light nuclei can enhance the initial spatial anisotropies in relativistic nuclear collisions relative to those arising from nuclei with uniform density distributions. Thus, observables that are strongly sensitive to the initial geometry can be a more efficient probe of the clustered structures than observables dominated by final state dynamics. We investigate the collisions of clustered oxygen nuclei at A TeV at the LHC using the GLISSANDO initial state model along with the MUSIC event-by-event hydrodynamical framework. The tetrahedral clustered structure of O leads to significantly larger initial triangular eccentricity than collisions with uniform density distributions especially in the most central events. The spatial eccentricity is found to be relatively less sensitive to the initial state clustered structure. The production of thermal photons is estimated to be only marginally influenced by clustering for both central as well as peripheral collisions. In contrast, the photon triangular flow coefficient is strongly affected by initial state clustering resulting in substantially larger values in both central and peripheral collisions. An experimental determination of photon anisotropic flow together with the ratios of flow coefficients in O+O collisions therefore expected to provide valuable insight into the possible clustered structure in light nuclei and also to constrain parameters in theoretical modeling.

    Comments:
    7 pages, 9 figures
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    2509.20954 [pdf]
    EPJC(2026)·0 citations
  4. 04

    [Submitted on 25 Sept 2025]

    Effects of mean-field momentum dependence on pion production in intermediate-energy heavy-ion collisions

    Xin Li🇨🇳 · Si-Pei Wang🇨🇳 · Zhen Zhang🇨🇳 · Rui Wang🇨🇳 · Jie Pu🇨🇳 · Chun-Wang Ma🇨🇳 · Lie-Wen Chen🇨🇳

    Pion production in heavy-ion collisions at intermediate energies provides an important probe of the collision dynamics and nuclear matter equation of state, especially the high-density behavior of the symmetry energy. Using the lattice Boltzmann-Uehling-Uhlenbeck transport model with a recently developed nuclear effective interaction based on the so-called NLO Skyrme pseudopotential, we investigate the effects of the momentum dependence of nucleon mean-field potentials on the pion production in Au+Au collisions at a beam energy of ~GeV/nucleon. We find that a stronger momentum dependence, for which the nucleon mean-field potentials increase faster with momentum, generally suppresses pion production. This feature can be understood in terms of the mean-field-induced modification of nucleon high-momentum phase space during the compression stage: a stronger momentum dependence can reduce the relative fraction of high-momentum nucleons in heavy-ion collisions, thereby suppressing the production of resonances and pions.

    Comments:
    10 pages, 5 figures, 2 tables. Title modified and presentation improved. Accepted version to appear in PLB
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
    arXiv:
    2509.21099 [pdf]
    PLB(2026)·6 citations

Affiliations

first authorsco-authorsvia INSPIRE