Nuclear Charge Radius of 9Be from Muonic Atom Spectroscopy Using a Microcalorimeter
Ofir Eizenberg, Shikha Rathi, Andreas Abeln, Sonia Bacca, Gonçalo Baptista, Nir Barnea, Noam Burger, Thomas Elias Cocolios, Marie Deseyn, Tim Egert, Christian Enss, Andreas Fleischmann, Loredana Gastaldo, César Godinho, Nitzan Goldberg, Michael Heines, Daniel Hengstler, Paul Indelicato, Weiguang Jiang, Klaus Kirch, Andreas Knecht, Daniel Kreuzberger, Jorge Machado, Ulf-G. Meißner, Ben Ohayon, Nancy Paul, Randolf Pohl, Tim Redelbach, Michael Roosa, Katharina von Schoeler, Quentin Senetaire, Shihang Shen, Daniel Unger, Stergiani Marina Vogiatzi, Johanna Walch, Frederik Wauters, Aziza Zendour
Abstract
The 2p1s transition energy in muonic 9Be was measured using a metallic magnetic calorimeter, resulting in E2p 1s=33\,391.48(34)\,eV. The result is 30 times more precise than the previous best measurement and enables the extraction of the corresponding nuclear charge radius rc(9Be)=2.5506(51)\,fm. It is 2.4 times more precise than the commonly used value based on electron scattering and differs from it by 2.3 times the combined uncertainties. This measurement represents the first determination of a nuclear charge radius using muonic x-ray spectroscopy with microcalorimeters.
Create a lesson
Related papers
Direct measurement of the in-medium η mass spectrum through the γγ decay channel
Y. Matsumura, N. Muramatsu, T. A. Hashimoto et al.
STAR Highlights II: Study of Small Systems and the Search for New, Exotic Physics
Jiangyong Jia
Cluster emission and its impact on the r-process nucleosynthesis
Natalia Thomas, Silvia Bara, Thomas Elias Cocolios et al.
Core Breaking at Low Spin in 68Zn from Nuclear Resonance Fluorescence
S. R. Johnson, R. V. F. Janssens, B. A. Brown et al.
Isoscalar Giant Resonances in the even-A Pd Isotopes
J. Arroyo, U. Garg, T. Furuno et al.
Efficient production of 229m,gTh via neutron capture in VUV-transparent crystals
Zhong-yi Chen, Hao-yang Lan, Di Wu et al.