Wed·Sep 6, 2023Wednesday·September 6, 2023

1. 01*

   Nuclear charge radii of silicon isotopes

   Kristian König🇩🇪 · Julian C. Berengut🇦🇺 · Anastasia Borschevsky🇳🇱 · Alex Brinson🇺🇸 · B. Alex Brown🇺🇸 · Adam Dockery🇺🇸 · Serdar Elhatisari🇹🇷 · Ephraim Eliav🇮🇱 · Ronald F. Garcia Ruiz🇺🇸 · Jason D. Holt🇨🇦 · Bai-Shan Hu🇨🇦 · Jonas Karthein🇺🇸 and 11 other authors

   The nuclear charge radius of ${}^{32}$Si was determined using collinear laser spectroscopy. The experimental result was confronted with ab initio nuclear lattice effective field theory, valence-space in-medium similarity renormalization group, and mean field calculations, highlighting important achievements and challenges of modern many-body methods. The charge radius of ${}^{32}$Si completes the radii of the mirror pair ${}^{32}$Ar - ${}^{32}$Si, whose difference was correlated to the slope $L$ of the symmetry energy in the nuclear equation of state. Our result suggests $L\le 60$\,MeV, which agrees with complementary observables.

   nucl-exnucl-thPRL(2024)·51 citations
2. 02*

   Implications of correlations and fluctuations in small systems

   Debasish Das🇮🇳

   The small collision systems like p+p and p+A collisions have shown new features like A+A collisions in the relativistic regime. These new aspects in small systems which have altered our research and understanding on the two-particle correlation measurements have been provided. Additionally, a critical observation of the fluctuation measurements provides new ways to infer such novel happening in the small collision systems. The ongoing and future endeavors towards the new measurements are also discussed.

   nucl-exhep-exhep-phnucl-thInt.J.Mod.Phys.A(2022)·1 citation
3. 03*

   Nucleon axial-vector form factor and radius from future neutrino experiments

   Roberto Petti🇺🇸 · Richard J. Hill🇺🇸 · Oleksandr Tomalak🇺🇸

   Precision measurements of antineutrino elastic scattering on hydrogen from future neutrino experiments offer a unique opportunity to access the low-energy structure of protons and neutrons. We discuss the determination of the nucleon axial-vector form factor and radius from antineutrino interactions on hydrogen that can be collected at the future Long-Baseline Neutrino Facility, and study the sources of theoretical and experimental uncertainties. The projected accuracy would improve existing measurements by $1$ order of magnitude and be competitive with contemporary lattice-QCD determinations, potentially helping to resolve the corresponding tension with measurements from (anti)neutrino elastic scattering on deuterium. We find that the current knowledge of the nucleon vector form factors could be one of the dominant sources of uncertainty. We also evaluate the constraints that can be simultaneously obtained on the absolute ${\bar{\nu }}_{\mu }$ flux normalization.

   ↳ hep-phhep-exnucl-exnucl-thPRD(2024)·18 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.