The spectroscopy of Al-22: A beta p, beta 2p and beta alpha emitter

被引：26

作者：

Blank, B

Boue, F

Andriamonje, S

Czajkowski, S

DelMoral, R

Dufour, JP

Fleury, A

Pourre, P

Pravikoff, MS

Orr, NA

Schmidt, KH

Hanelt, E

机构：

[1] INST SCI MAT & RAYONNEMENT,LPC,F-14050 CAEN,FRANCE

[2] GESELL SCHWERIONENFORSCH MBH,D-64291 DARMSTADT,GERMANY

[3] TH DARMSTADT,INST KERNPHYS,D-64289 DARMSTADT,GERMANY

来源：

NUCLEAR PHYSICS A | 1997年 / 615卷 / 01期

关键词：

D O I：

10.1016/S0375-9474(96)00483-6

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In an experiment at the LISE3 facility of GANIL, we produced the proton-rich isotope Al-22 by the fragmentation of a Ar-36 primary beam at 95 MeV/nucleon. After implantation in a detector telescope, the decay of Al-22 via beta-delayed proton emission, beta-delayed two-proton emission as well as, for the first time, via beta-delayed alpha emission has been studied. An alpha peak has been observed at (3.27 +/- 0.04) MeV with a branching ratio of (0.31 +/- 0.09) %. The comparison of the different decay channels to those of the mirror nucleus F-22 and to shell-model calculations favor a 3(+) state as being the ground state of Al-22. A half life of T-1/2 = (59 +/- 3) ms has been measured. (C) 1997 Elsevier Science B.V.

引用

页码：52 / 68

页数：17

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