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Nuclear Theory·nucl-th

Thursday·October 3, 2024

6 papers—2 primary·4 cross-listed

All6Primary2Cross-lists4
  1. 03

    Enhancing DUNE's solar neutrino capabilities with neutral-current detection

    Stephan A. Meighen-Berger🇦🇺 · Jayden L. Newstead🇦🇺 · John F. Beacom🇺🇸 · Nicole F. Bell🇦🇺 · Matthew J. Dolan🇦🇺

    We show that the Deep Underground Neutrino Experiment (DUNE) has the potential to make a precise measurement of the total active flux of 8B solar neutrinos via neutral-current (NC) interactions with argon. This would complement proposed precise measurements of solar-neutrino fluxes in DUNE via charged-current (CC) interactions with argon and mixed CC/NC interactions with electrons. Together, these would enable DUNE to make a SNO-like comparison of rates and thus to make the most precise measurements of and using solar neutrinos. Realizing this potential requires dedicated but realistic efforts to improve DUNE's low-energy capabilities and separately to reduce neutrino-argon cross section uncertainties. Comparison of mixing-parameter results obtained using solar neutrinos in DUNE and reactor antineutrinos in JUNO (Jiangmen Underground Neutrino Observatory) would allow unprecedented tests of new physics.

    ↳ hep-phhep-exnucl-exnucl-th+1PRL(2025)·13 citations
  2. 04

    p-- femtoscopic correlation analysis using a dynamical model

    Kenshi Kuroki🇯🇵 · Tetsufumi Hirano🇯🇵

    We analyse the p-- correlation functions in high-multiplicity proton+proton collisions at the LHC using a dynamical model, DCCI2, and discuss the effects of collision dynamics on the p-- femtoscopic study. Collision dynamics, such as collective expansion and hadronic rescatterings, leads to the relative momentum-dependent non-Gaussian source functions. This results in deviations in the correlation functions compared to those using the Gaussian source function adopted in existing studies. Our analysis shows the importance of using the source functions that reflect more realistic collision dynamics for future precision analysis of hadron interactions via femtoscopy.

    ↳ hep-phnucl-exnucl-thEPJ Web Conf.(2025)·2 citations
  3. 05

    Constraints on the model from global QCD analysis

    X. G. Wang🇦🇺 · N. T. Hunt-Smith🇦🇺 · W. Melnitchouk🇺🇸 · N. Sato🇺🇸 · A. W. Thomas🇦🇺

    We perform the first global QCD analysis of electron-nucleon deep-inelastic scattering and related high-energy data including the beyond the Standard Model gauge boson, . Contrary to the dark photon case, we find no improvement in the relative to the baseline result. The finding allows us to place exclusion limits on the coupling constant of the with mass in the range to 160 GeV.

    ↳ hep-phhep-exnucl-thPRD(2025)·5 citations
  4. 06

    Momentum dependent potentials from a parity doubling CMF model in UrQMD: Results on flow and particle production

    Jan Steinheimer🇩🇪 · Tom Reichert🇩🇪 · Yasushi Nara🇯🇵 · Marcus Bleicher🇩🇪

    The quantum molecular dynamics (QMD) part of the UrQMD model is extended to allow implementation of momentum dependent potentials from a parity doubling chiral mean field (CMF) model. Important aspects like energy conservation and effects on particle production and flow are discussed. It is shown, that this new implementation reproduces qualitatively and quantitatively available data over a wide range of beam energies and improves the description of observables without exception. In particular the description of hyperon and pion production at SIS18 energies is improved. From a comparison with HADES data one could conclude that the present parametrization of the CMF model leads to a slightly too weak momentum dependence. However, a more firm conclusion will require a systematic comparison with flow and multiplicity data over a range of beam energies and system sizes. Our work serves as an important step towards such future studies where the properties of dense QCD matter, through parameters of the CMF model, can be constraint using a comparison of the UrQMD model with high precision heavy ion data, finally also allowing direct comparisons with neutron star and neutron star merger observables.

    ↳ hep-phnucl-thJ.Phys.G(2025)·26 citations

Affiliations

first authorsco-authorsvia INSPIRE