New isotope 265Bh

Z. G. Gan; J. S. Guo; X. L. Wu; Z. Qin; H. M. Fan; X. G. Lei; H. Y. Liu; B. Guo; H. G. Xu; R. F. Chen; C. F. Dong; F. M. Zhang; H. L. Wang; C. Y. Xie; Z. Q. Feng; Y. Zhen; L. T. Song; P. Luo; H. S. Xu; X. H. Zhou; G. M. Jin; Zhongzhou Ren

doi:10.1140/epja/i2004-10020-2

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2022 Impact factor 2.7

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2004) 20: 385-387
https://doi.org/10.1140/epja/i2004-10020-2

Letter

New isotope ²⁶⁵Bh

Z. G. Gan¹^*, J. S. Guo¹, X. L. Wu¹, Z. Qin¹, H. M. Fan¹, X. G. Lei¹, H. Y. Liu¹, B. Guo¹, H. G. Xu¹, R. F. Chen¹, C. F. Dong¹, F. M. Zhang¹, H. L. Wang¹, C. Y. Xie¹, Z. Q. Feng¹, Y. Zhen¹, L. T. Song¹, P. Luo¹, H. S. Xu¹, X. H. Zhou¹, G. M. Jin¹ and Zhongzhou Ren²

¹ Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, PRC
² Department of Physics, Nanjing University, 210008, Nanjing, PRC

^* e-mail: zggan@impcas.ac.cn

Abstract

A new isotope ²⁶⁵ Bh was produced and identified at the Sector Focus Cyclotron of the Heavy Ion Research Facility in Lanzhou. This experiment was performed via the reaction of an ²⁴³ Am target with 168 MeV ²⁶ Mg ions. Identification was made by observation of correlated -particle decays between the new isotope ²⁶⁵ Bh and its ²⁶¹ Db and ²⁵⁷ Lr daughter nuclei using a set of rotating-wheels system. A total of 8 correlated decay events of ²⁶⁵ Bh and 4 decay events of ²⁶⁴ Bh were observed. ²⁶⁵ Bh decays with a 0.94 _-0.31 ^{+ 0.70} s half-life by emission of -particles with an average energy of MeV. The half-life and decay energy of ²⁶⁵ Bh from this experiment are in agreement with theoretical predictions.