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相关论文: From CREX to CEvNS: The Weak Radius of 40Ar

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The present PREX-II and CREX experiments are measuring the rms radius of the weak charge density of $^{208}$Pb and $^{48}$Ca. We discuss the feasibility of a new parity violating electron scattering experiment to measure the surface…

核理论 · 物理学 2020-12-15 Brendan Reed , Z. Jaffe , C. J. Horowitz , C. Sfienti

The density dependence of the nuclear symmetry energy remains a central open problem in nuclear physics. Parity violating electron scattering experiments have provided largely model-independent determinations of the neutron skin thickness…

核理论 · 物理学 2026-03-13 J. Piekarewicz

Measurement of the parity-violating electron scattering asymmetry is an established technique at Jefferson Lab and provides a new opportunity to measure the weak charge distribution and hence pin down the neutron radius in nuclei in a…

核实验 · 物理学 2015-06-16 C. J. Horowitz , K. S. Kumar , R. Michaels

We present the results on the radius of the neutron distribution in $^{40}\text{Ar}$, on the low-energy value of the weak mixing angle, and on the electromagnetic properties of neutrinos obtained from the analysis of the coherent…

高能物理 - 唯象学 · 物理学 2020-08-05 M. Cadeddu , F. Dordei , C. Giunti , Y. F. Li , E. Picciau , Y. Y. Zhang

The CENNS-10 experiment of the COHERENT collaboration has recently reported the first detection of coherent-elastic neutrino-nucleus scattering (CEvNS) in liquid Argon with more than $3 \sigma$ significance. In this work, we exploit the new…

高能物理 - 唯象学 · 物理学 2020-11-10 O. G. Miranda , D. K. Papoulias , G. Sanchez Garcia , O. Sanders , M. Tórtola , J. W. F. Valle

Using the new results on coherent elastic neutrino-nucleus scattering data in cesium-iodide provided by the COHERENT experiment, we determine a new measurement of the average neutron rms radius of $^{133}\text{Cs}$ and $^{127}\text{I}$. In…

高能物理 - 唯象学 · 物理学 2022-01-05 M. Cadeddu , N. Cargioli , F. Dordei , C. Giunti , Y. F. Li , E. Picciau , C. A. Ternes , Y. Y. Zhang

Measurement of the parity-violating electron scattering asymmetry from ${}^{208}$Pb has demonstrated a new opportunity at Jefferson Lab to measure the weak charge distribution and hence pin down the neutron radius in nuclei in a relatively…

核实验 · 物理学 2015-10-21 Robert Michaels

A new nonlocal dispersive-optical-model analysis has been carried out for neutrons and protons in $^{48}$Ca that reproduces the weak-form-factor measurement of CREX. In addition to elastic-scattering angular distributions, total and…

核理论 · 物理学 2024-10-03 N. L. Calleya , M. C. Atkinson , W. H. Dickhoff

The COHERENT collaboration observed coherent elastic neutrino nucleus scattering using a 14.6 kg cesium-iodide (CsI) detector in 2017 and recently published the updated results before decommissioning the detector. Here, we present the…

核实验 · 物理学 2023-08-16 M. Atzori Corona , M. Cadeddu , N. Cargioli , F. Dordei , C. Giunti , G. Masia

Pioneering electroweak measurements of the neutron skin thickness in lead-208 and calcium-48 are challenging our understanding of nuclear dynamics. Many theoretical models suggest that the slope of the symmetry energy controls the…

核理论 · 物理学 2025-03-11 Athul Kunjipurayil , Marc Salinas , J. Piekarewicz

The weak mixing angle is a fundamental parameter of the electroweak theory of the standard model whose measurement in the low-energy regime is still not precisely determined. Different probes are sensitive to its value, among which atomic…

高能物理 - 唯象学 · 物理学 2024-08-20 M. Atzori Corona , M. Cadeddu , N. Cargioli , F. Dordei , C. Giunti

New measurements of the weak charge density distributions of $^{48}$Ca and $^{208}$Pb challenge existing nuclear models. In the post-PREX-CREX era, it is unclear if current models can simultaneously describe weak charge distributions along…

核理论 · 物理学 2025-09-03 Tianqi Zhao , Zidu Lin , Bharat Kumar , Andrew W. Steiner , Madappa Prakash

We report a precise measurement of the parity-violating asymmetry $A_{\rm PV}$ in the elastic scattering of longitudinally polarized electrons from $^{48}{\rm Ca}$. We measure $A_{\rm PV} =2668\pm 106\ {\rm (stat)}\pm 40\ {\rm (syst)}$…

Using the model independent average neutron rms radius of $^{133}\text{Cs}$ and $^{127}\text{I}$ obtained from the analysis of the coherent elastic neutrino-nucleus scattering data of the COHERENT experiment, we remove the long-standing…

高能物理 - 唯象学 · 物理学 2019-02-27 Matteo Cadeddu , Francesca Dordei

The neutron radius of a heavy nucleus is a fundamental nuclear-structure observable that remains elusive. Progress in this arena has been limited by the exclusive use of hadronic probes that are hindered by large and controversial…

核理论 · 物理学 2008-11-26 J. Piekarewicz

The recent pioneering campaigns conducted by the Lead Radius Experiment (PREX) and the Calcium Radius Experiment (CREX) collaborations have uncovered major deficiencies in the theoretical description of some fundamental properties of atomic…

核理论 · 物理学 2023-12-22 Marc Salinas , Jorge Piekarewicz

Neutrino-nucleus coherent elastic scattering provides a theoretically appealing way to measure the neutron part of nuclear form factors. Using an expansion of form factors into moments, we show that neutrinos from stopped pions can probe…

核理论 · 物理学 2013-05-30 Kelly Patton , Jonathan Engel , Gail C. McLaughlin , Nicolas Schunck

We review the physics of coherent elastic neutrino-nucleus scattering and the results and perspectives for the measurements of the radius of the neutron distribution of the nucleus, of the weak mixing angle, and of new neutrino interactions…

高能物理 - 唯象学 · 物理学 2023-07-27 M. Cadeddu , F. Dordei , C. Giunti

Parity-violating electron scattering experiments on $\rm ^{48}Ca$ (CREX) and $\rm ^{208}Pb$ (PREX-2) offer valuable insight into the isovector properties of finite nuclei, providing constraints for the density dependence of the nuclear…

核理论 · 物理学 2025-03-04 P. S. Koliogiannis , E. Yuksel , N. Paar
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