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Nuclear Theory·nucl-th

Thursday·May 14, 2026

4 papers—2 primary·2 cross-listed

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  1. 03

    [Submitted on 12 May 2026] (cross-list from nucl-ex)

    Short-range correlations in nuclei

    Or Hen · Holly Szumila-Vance · Lawrence Weinstein

    Atomic nuclei are held together by the strong nuclear force acting between protons and neutrons (nucleons). While the long range, averaged part of this force is well described by the nuclear shell model, the short-range and tensor components create a fascinating substructure: pairs of nucleons that momentarily approach each other very closely, acquiring large relative momenta. These short-range correlated (SRC) pairs account for roughly 20% of all nucleons in any nucleus and almost all of the high momentum nucleons. This chapter provides an introduction to SRC pairs: their origin in the nucleon-nucleon tensor force, the experimental methods used to study them, principally deep inelastic and quasielastic electron and proton scattering, and the comprehensive picture that has emerged over the past three decades.

    Comments:
    26 page, 29 figures, invited chapter for the Encyclopedia of Nuclear Physics
    Subjects:
    Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
    arXiv:
    2605.12626 [pdf]
    1 citation
  2. 04

    [Submitted on 12 May 2026] (cross-list from hep-ph)

    Jet Momentum Broadening in Viscous QCD Matter: A Moment Expansion Approach

    Isabella Danhoni🇺🇸 · Nicki Mullins🇺🇸 · Jorge Noronha🇺🇸

    We formulate out-of-equilibrium jet momentum broadening in QCD effective kinetic theory through a moment expansion of the medium distribution function, a method traditionally used to derive relativistic viscous hydrodynamics from kinetic theory. We explicitly compute the leading near-equilibrium contribution to the spatial jet broadening tensor within the 14-moment approximation, and show that it is controlled by the medium shear-stress tensor. This provides a direct map from QCD effective kinetic theory to event-by-event viscous hydrodynamic simulations, converting local shear-stress fields into anisotropic corrections to jet broadening in heavy-ion collisions.

    Comments:
    5 pages + Supplemental Material
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Theory (hep-th); Nuclear Theory (nucl-th)
    arXiv:
    2605.12791 [pdf]
    0 citations

Affiliations

first authorsco-authorsvia INSPIRE