β decay of the neutron-rich isotope <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>14</mn></mrow></msup></mrow></math></span>Be

M. Belbot; J. J. Kolata; M. Zahar; N. Aoi; M. Hirai; M. Ishihara; H. Okuno; H. Sakurai; T. Teranishi; T. Kishida; G. Liu; T. Nakamura; Y. Watanabe; A. Yoshida; E. Ideguchi; H. Miyatake; S. Shimoura; S. S. Yamamoto

doi:10.1103/PhysRevC.56.3038

β decay of the neutron-rich isotope $^{14}$ Be

M. Belbot, J. J. Kolata, M. Zahar, N. Aoi, M. Hirai, M. Ishihara, H. Okuno, H. Sakurai, T. Teranishi, T. Kishida, G. Liu, T. Nakamura, Y. Watanabe, A. Yoshida, E. Ideguchi, H. Miyatake, S. Shimoura, and S. S. Yamamoto

Phys. Rev. C 56, 3038 – Published 1 December 1997

Abstract

The neutron spectroscopy of the $β$ -delayed neutron decay of $^{14}$ Be has been investigated. A strong neutron group, which accounts for much of the $β$ -decay yield and could explain the discrepancy in total neutron branching ratio found in a previous experiment, was observed. We found that the total width of the final state for this transition is $60 \pm 5 \pm 6$ keV, and the measured half-life of the $^{14}$ Be $β$ decay was $4.29 \pm 0.18$ ms. The limits on the branching ratio and log $ft$ value determined for this group are compared with the earlier work and the results of a shell-model calculation.