3-QUASI-PARTICLE EXCITATIONS IN BR-77

被引：13

作者：

DORING, J ^{[1
]}

FUNKE, L ^{[1
]}

SCHWENGNER, R ^{[1
]}

WINTER, G ^{[1
]}

机构：

[1] INST KERN & HADRONENPHYS, FORSCHUNGSZENTRUM ROSSENDORF, D-01314 DRESDEN, GERMANY

来源：

PHYSICAL REVIEW C | 1993年 / 48卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.48.2524

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：

Excited states in Br-77 were investigated via the reactions As-75(alpha,2n)Br-77 and Ge-73, Ge-74, (Li-7,xn)Br-77 at beam energies of 27 and 35 MeV, respectively. On the basis of coincidence and angular distribution data of the gamma rays the known level sequences of positive and negative parity were extended to tentative spins of 25/2HBAR, and a new decay sequence beginning at spin and parity of (17/2-) was found. This new sequence is discussed in terms of the 3-quasiparticle configuration (pig9/2 x nug9/2 x nu(p1/2, P3/2, f5/2)). Moreover, the irregularity found in the moments of inertia at HomegaBAR almost-equal-to 0.4 MeV for the negative-parity band is attributed to a g9/2 quasiproton alignment.

引用

页码：2524 / 2527

页数：4

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