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Nuclear Theory·nucl-th

Thursday·December 21, 2023

10 papers—3 primary·7 cross-listed

All10Primary3Cross-lists7
  1. 01

    One and Two-Body Current Contributions to Lepton-Nucleus Scattering

    Alessandro Lovato🇺🇸 · Noemi Rocco🇺🇸 · Noah Steinberg🇺🇸

    Modeling lepton-nucleus scattering with the accuracy required to extract neutrino-oscillation parameters from long- and short-baseline experiments necessitates retaining most quantum-mechanical effects. One such effect is the interference between one- and two-body current operators in the transition currents, which has been known to enhance the cross-sections, especially in transverse kinematics. In this work, we incorporate such interference in the spectral function formalism, which combines relativistic currents and kinematics with an accurate description of the initial target state. Our analysis of lepton-scattering off C demonstrates that interference effects appreciably enhance the transverse electromagnetic response functions and the flux-folded neutrino-nucleus cross section, in both cases, improving the agreement with experimental data. We discuss the impact on the neutrino-oscillation program and the determination of nucleon axial form factors.

    nucl-thhep-phPRC(2025)·22 citations
  2. 02

    The role of longitudinal decorrelations for measurements of anisotropic flow in small collision systems

    Sangwook Ryu🇺🇸 · Bjoern Schenke🇺🇸 · Chun Shen🇺🇸 · Wenbin Zhao🇺🇸

    Within a (3+1)D viscous hydrodynamic model we compute anisotropic flow in small system collisions as performed at the Relativistic Heavy Ion Collider and measured by the STAR and PHENIX Collaborations. We emphasize the importance of the rapidity dependence of the geometry for interpreting the differences encountered in measurements by the two collaborations.

    nucl-thhep-phnucl-exEPJ Web Conf.(2024)·5 citations
  3. 03

    Complete fusion of Li with Si and Ni nuclei in the framework of the continuum discretized coupled channel method

    S.R. Souza · L.F. Canto · R. Donangelo

    The complete fusion of Li with Si and Ni nuclei, ranging from subbarrier energies up to values well above the Coulomb barrier, is studied using the continuum discretized coupled channels method. We investigate the sensitivity of the results to the largest energy used in the discretization of the continuum, including closed channels. Our results reveal that, as long as the states in the continuum are not limited to too small energies, the specific upper bound adopted is not relevant as the complete fusion cross-section is fairly insensitive to it above a threshold. Convergence with respect to this parameter is rapidly reached, so that closed channels play a role only at low collision energies. A good agreement with the available experimental data is obtained.

    nucl-thnucl-ex0 citations

Affiliations

first authorsco-authorsvia INSPIRE