PaperPanorama

Nuclear Experiment·nucl-ex

Thu·Jul 2, 2026

4 papers—2 primary·2 cross-listed

All4Primary2Cross-lists2
  1. 01

    Measurement of 80-200 MeV/n O nuclear cross-section on Carbon and Polyethylene targets with the nuclear emulsion detector of the FOOT experiment

    FOOT Collaboration · Giuliana Galati · Vincenzo Boccia · Andrey Alexandrov · Giovanni Ambrosi · Stefano Argirò · Takashi Asada · Mattia Barbanera · Nazar Bartosik · Giuseppe Battistoni · Alexandre Bigot · Maria Giuseppina Bisogni and 84 other authors

    Accurate knowledge of nuclear fragmentation cross-sections is essential for optimizing charged particle therapy. In this study, conducted within the framework of the FOOT (FragmentatiOn Of Target) experiment, we present the first measurements with a large angular acceptance of total charge-changing cross-section and the cross-section for the production of fragments (production cross-section) for O ions interacting with Carbon (C) and Polyethylene (CH) targets in the kinetic energy range of 80 to 200 MeV/nucleon. Measurements were performed using the Emulsion Cloud Chamber (ECC) technique, which combines high spatial resolution and angular acceptance, up to 45. The results are compared with Monte Carlo model predictions. Moreover, the total charge-changing and fragment production cross-sections for O on Hydrogen in the same energy range are derived.

    nucl-ex0 citations
  2. 02

    Nuclear electromagnetic moments by spin-precession methods

    Georgi Georgiev🇫🇷 · Dimiter L. Balabanski🇷🇴 · Andrew E.Stuchbery🇦🇺 · Hideki Ueno🇯🇵

    Nuclear moment studies carried out with spin-precession methods at and after the turn of the millennium are critically assessed. A period of about 30 years is covered, during which much of} the focus of nuclear structure research shifted from high-spin physics to studies of neutron-rich exotic nuclei. The formalism for the extraction of nuclear moments is described. The -nuclear magnetic resonance/nuclear quadrupole resonance (-NMR/NQR), the time-dependent perturbed angular distribution (TDPAD), the transient field, the recoil-in-vacuum (RIV), and the tilted-foils methods for measurements of nuclear magnetic dipole and electric quadrupole moments are described in detail, as well as the requirements for their application in studies of exotic nuclei. The impact of nuclear-moment measurements on the understanding of key topics of nuclear structure research is discussed. {Key results on short-lived states, mainly from transient-field measurements, are reviewed. Included are comparisons with large-basis shell model calculations, discussions on the nature of weakly-collective nuclei, insights into emerging collectivity away from closed shells, and electromagnetic properties of odd- rotors.} In the field of high-spin physics, research related to high-spin yrast and isomers, superdeformation, magnetic, anti-magnetic, and chiral rotation is covered. In neutron-rich exotic nuclei, studies related to the , and ``islands of inversion'', the structure of nuclei around Ni and Sn, and in the mass region are discussed.

    nucl-exnucl-th1 citation
  3. 03

    Spin Femtoscopy: A Framework for Revealing Genuine Spin Correlations

    Kehao Zhang🇨🇳 · Xuan Wang🇨🇳 · Xiaofeng Luo🇨🇳

    Spin correlations are among the most fundamental quantum observables in many-body systems, yet they remain difficult to access experimentally in relativistic heavy-ion collisions. Existing spin measurements, including hyperon polarization and vector-meson spin alignment, have revealed important single-particle spin phenomena, but genuine two-particle spin correlations in the produced hadronic system remain largely unexplored. Here we propose spin femtoscopy, a framework for accessing genuine two-particle spin correlations through spin-resolved femtoscopic measurements. The key principle is that different two-particle spin configurations can give rise to different femtoscopic correlation functions because of quantum statistics, spin-dependent final-state interactions. Using pairs as a proof of principle, we exploit the self-analyzing weak decay of hyperons to construct spin-sensitive femtoscopic correlation functions with different singlet and triplet admixtures. We show that these observables provide experimental access to the spin-state populations of the pair and allow genuine spin correlations to be separated from spin-dependent femtoscopic mixing caused by quantum statistics and final-state interactions. This work extends femtoscopy from a probe of source geometry and final-state interactions to a framework for revealing the quantum spin structure of strongly interacting matter.

    ↳ nucl-thhep-exhep-phnucl-ex+13 citations

Affiliations

first authorsco-authorsvia INSPIRE