Measurement of the 52Fe mass via the precise proton-decay energy of 53Com

Yangping Shen; Weiping Liu; Jun Su; Ningtao Zhang; Long Jing; Zhihong Li; Youbao Wang; Bing Guo; Shengquan Yan; Yunju Li; Sheng Zeng; Gang Lian; Xianchao Du; Lin Gan; Xixiang Bai; Jiansong Wang; Yuhu Zhang; Xiaohong Zhou; Xiaodong Tang; Jianjun He; Yanyun Yang; Shilun Jin; Peng Ma; Junbing Ma; Meirong Huang; Zhen Bai; Yuanjie Zhou; Weihu Ma; Jun Hu; Shiwei Xu; Shaobo Ma; Size Chen; Liyong Zhang; Bing Ding; Zhihuan Li

doi:10.1051/epjconf/201610904007

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Proceedings

Open Access

EPJ Web of Conferences 109, 04007 (2016)
https://doi.org/10.1051/epjconf/201610904007

Measurement of the ⁵²Fe mass via the precise proton-decay energy of ⁵³Co^m

Yangping Shen¹, Weiping Liu¹, Jun Su¹, Ningtao Zhang², Long Jing², Zhihong Li¹, Youbao Wang¹, Bing Guo¹, Shengquan Yan¹, Yunju Li¹, Sheng Zeng¹, Gang Lian¹, Xianchao Du¹, Lin Gan¹, Xixiang Bai¹, Jiansong Wang², Yuhu Zhang², Xiaohong Zhou², Xiaodong Tang², Jianjun He², Yanyun Yang², Shilun Jin², Peng Ma², Junbing Ma², Meirong Huang², Zhen Bai², Yuanjie Zhou², Weihu Ma², Jun Hu², Shiwei Xu², Shaobo Ma², Size Chen², Liyong Zhang², Bing Ding² and Zhihuan Li³

¹ China Institute of Atomic Energy, P. O. Box 275(1), Beijing 102413, China
² Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
³ School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China

Published online: 12 February 2016

Abstract

The proton decay of ⁵³Co^m(3174.1 keV; 19/2⁻) was investigated via the fragmentation of a ⁵⁸Ni primary beam. The proton-decay energy was determined with an improved precision to be 1558(8) keV. With this new result and the mass of ⁵³Co^m, the ⁵²Fe mass excess was derived to be −48330(8) keV, which is in good agreement with the AME12 value. A new recommended value of −48331.6(49) keV is given.

© Owned by the authors, published by EDP Sciences, 2016

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.