Proton radioactivity from 146Tm. The completion of a sequence of four odd-odd proton emitters

doi:10.1016/0370-2693(93)90484-Y

Physics Letters B

Volume 312, Issues 1–2, 5 August 1993, Pages 46-48

https://doi.org/10.1016/0370-2693(93)90484-Y Get rights and content

Abstract

Proton emission has been observed from the new isotope ¹⁴⁶Tm. Two transitions have been identified at energies of 1119±5 keV and 1189±5 keV corresponding to Q-values of 1127±5 keV and 1197±5 keV respectively. The measured half-lives of 235±27 ms and 72±23 ms are well reproduced by simple WKB calculations assuming proton emission from $h_{112}$ orbitals. The proton transitions are assigned to a 10⁺ isomeric state and a low lying 5⁻ or 6⁻ level.

References (16)

P.J. Sellin
Nucl. Instrum. Methods A
(1992)
A.H. Wapstra
At. Data Nucl. Data Tables
(1988)
P. Möller et al.
At. Data Nucl. Data Tables
(1988)
S. Liran et al.
At. Data Nucl. Data Tables
(1976)
R.D. Page
Phys. Rev. Lett.
(1992)
O. Klepper
Z. Phys. A
(1982)
S. Hofmann
Z. Phys. A
(1982)
P.J. Sellin et al., accepted for publication in Phys. Rev....

There are more references available in the full text version of this article.

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Proton radioactivity from 146Tm. The completion of a sequence of four odd-odd proton emitters

Abstract

Nucl. Instrum. Methods A

At. Data Nucl. Data Tables

At. Data Nucl. Data Tables

At. Data Nucl. Data Tables

Phys. Rev. Lett.

Z. Phys. A

Z. Phys. A

Proton radioactivity from ¹⁴⁶Tm. The completion of a sequence of four odd-odd proton emitters