Nuclear Theory·nucl-th

Thursday·February 12, 2026

8 papers—3 primary·5 cross-listed

04
Prediction on total inventory of radioisotopes produced by the interaction of 20Ne beams on 181Ta (110-170 MeV)
Sumana Mukherjee · Susanta Lahiri · Rajarshi Raut · Chiranjib Barman
This study aims to model the evaporation residues produced by the interaction of 108-170 MeV of 20Ne with the 181Ta target using Monte-Carlo PACE4 simulation code. Reaction mechanisms taking place in these interactions along with production cross sections have been discussed. Possibility of the production of clinically important exotic neutron deficient radioisotopes from these interactions have been assessed, but the result is not encouraging for production of radioisotopes useful in nuclear medicine.
↳ physics.med-phnucl-exnucl-th0 citations
05
Unified Description of Pseudoscalar Meson Structure from Light to Heavy Quarks
B. Almeida-Zamora🇲🇽 · L. Albino🇲🇽 · A. Bashir🇪🇸 · J.J. Cobos-Martínez🇲🇽 · J. Segovia🇪🇸
We present a comprehensive review of the structure of pseudoscalar mesons within an algebraic model formulated in the light-front framework. The approach provides a unified description of leading-twist parton distribution amplitudes (PDAs), light-front wave functions (LFWFs), generalized parton distributions (GPDs), parton distribution functions (PDFs), elastic electromagnetic form factors (EFFs), charge radii, and impact-parameter GPDs (IPS-GPDs), all derived consistently from the same underlying Bethe-Salpeter amplitudes. Results are discussed for light ( $π$ , $K$ ), heavy-light ( $D$ , $D_{s}$ , $B$ , $B_{s}$ , $B_{c}$ ), and heavy-heavy ( $η_{c}$ , $η_{b}$ ) pseudoscalar mesons, allowing for a systematic analysis of the role played by quark-mass asymmetry and heavy-quark dynamics. The study highlights how increasing quark masses drive a transition from broad, asymmetric momentum distributions to increasingly symmetric and spatially compact configurations. Comparisons with lattice QCD, Dyson-Schwinger equation studies, and contact-interaction models are presented where available. Overall, the algebraic model offers a transparent and symmetry-consistent framework to explore the three-dimensional momentum and spatial structure of pseudoscalar mesons across all quark-mass regimes.
↳ hep-phhep-exhep-latnucl-ex+1Symmetry(2026)·2 citations
06
A multidimensional landscape of the $η$ and $η^{'}$ mesons
L. Albino🇪🇸 · K. Raya🇪🇸 · R. J. Hernández-Pinto🇲🇽 · B. Almeida-Zamora🇪🇸 · J. Segovia🇪🇸 · A. Huet🇲🇽 · A. Bashir🇪🇸
We employ a recently proposed form-invariant algebraic model for the quark propagator and the Bethe-Salpeter amplitude of pseudoscalar mesons to study the internal structure of $η$ and $η^{'}$ mesons. This model facilitates the construction of the Bethe-Salpeter wavefunction, whose projection onto an appropriate flavor-basis leads to the light-front wavefunction for convenient linear combinations of the $s s ˉ$ and $l l ˉ \sim (u u ˉ + d d ˉ)$ states. Using an overlap representation, we compute the valence-quark generalized parton distributions (GPDs). The construction of the model ensures that this multidimensional quantity is determined entirely by the corresponding valence-quark distribution amplitudes. Once the GPDs are constructed, we carry out a straightforward derivation of other desired physical observables such as the distribution functions and the electromagnetic form factors. We also provide explicit comparisons with available results, demonstrating that the present model offers a consistent physical picture for all ground-state pseudoscalar mesons.
↳ hep-phnucl-thPRD(2026)·2 citations
07
Emulation of large-scale qubit registers with a phase-space approach
Christian de Correc🇫🇷 · Denis Lacroix🇫🇷 · Corentin Bertrand🇫🇷
A phase-space approach is used and benchmarked for the simulation of the continuous-time evolution of large registers of qubits. It is based on a statistical ensemble of independent mean-field trajectories, where mean field is introduced at the level of the qubits, substituting quantum fluctuations/correlations with classical ones. The approach only involves at worse a quadratic cost in the system size, allowing to simulate up to several thousands of qubits on a classical computer. It provides qualitatively accurate description of one-qubit observables evolutions, making it a useful reference in comparison to techniques limited to small qubit numbers. The predictive power is, however, less robust for multi-qubits observables. We benchmark the method on the $k$ -local transverse-field Ising model, considering a large variety of systems ranging from local to all-to-all interactions, and from weak to strong coupling regimes, with up to 2000 qubits. To showcase the versatility of the approach, simulations on 2D and 3D Ising models are also made.
↳ quant-phcond-mat.str-elnucl-thAPS Open Science(2026)·0 citations
08
Wave Propagation and Effective Refraction in Lorentz-Violating Wormhole Geometries
Semra Gurtas Dogan🇹🇷 · Omar Mustafa🇹🇷 · Abdulkerim Karabulut🇹🇷 · Abdullah Guvendi🇹🇷
We study the propagation of massless scalar waves in static, spherically symmetric Lorentz-violating wormhole spacetimes within a geometric-optical framework. Starting from a general metric characterized by an arbitrary lapse function and areal radius, we derive curvature invariants, establish regularity conditions at the wormhole throat, and reduce the Klein-Gordon equation to a Helmholtz-type radial wave equation. This formulation naturally leads to a position- and frequency-dependent effective refractive index determined by the underlying spacetime geometry and Lorentz-violating structure, resulting in effective frequency-dependent wave-optical behavior. We show that divergences of the refractive index coincide with Killing horizons, while curvature-induced turning points control reflection, transmission, and confinement of scalar waves. By analyzing constant, linear, and quadratic lapse profiles, we identify horizonless transmission regimes, asymmetric wave propagation, and multi-horizon trapping structures. Our results reveal that Lorentz violation can significantly modify wave-optical properties of curved spacetime, generating graded-index analogues and geometric confinement of modes without curvature singularities. This unified optical perspective provides a robust framework for investigating wave scattering, resonances, and potential observational signatures in Lorentz-violating gravitational backgrounds.
↳ gr-qcnucl-th1 citation

Affiliations

first authorsco-authorsvia INSPIRE

Prediction on total inventory of radioisotopes produced by the interaction of 20Ne beams on 181Ta (110-170 MeV)

Unified Description of Pseudoscalar Meson Structure from Light to Heavy Quarks

A multidimensional landscape of the η and η′ mesons

Emulation of large-scale qubit registers with a phase-space approach

Wave Propagation and Effective Refraction in Lorentz-Violating Wormhole Geometries

Affiliations

A multidimensional landscape of the $η$ and $η^{'}$ mesons