(νg9/2-2)8+ isomers in 82Se48 and 80Ge48 populated by deep-inelastic collisions

被引：24

作者：

Makishima, A ^{[1
]}

Asai, M

Ishii, T

Hossain, I

Ogawa, M

Ichikawa, S

Ishii, M

机构：

[1] Natl Def Med Coll, Dept Liberal Arts & Sci, Tokorozawa, Saitama 3598513, Japan

[2] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[3] Tokyo Inst Technol, Nucl Reactors Res Lab, Tokyo 1528550, Japan

来源：

PHYSICAL REVIEW C | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.59.R2331

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：

New 8(+) isomers in Se-82 and Ge-80 and their decays were studied by observing gamma rays from the projectilelike fragments produced by the deep-inelastic collision Pt-198+ 743 MeV 82Se. The lifetimes of the 8(+) isomers have been measured to be T-1/2=6.6(4) ns and T-1/2>0.4 ns for Se-82 and 80Ge, respectively. The N=48 isotones from Ge-80(32) to Pd-94(46) turned out to show quite different energy spectra of the yrast states up to I-pi =8(+), depending on the orbital occupied by valence protons. [S0556-2813(99)50105-2].

引用

页码：R2331 / R2333

页数：3

共 8 条

[1]

Firestone R. B., 1996, Table of Isotopes, V8th

[2] Proton-neutron interaction at N congruent to Z - First observation of the T-z=1 nucleus Pd-94(46)48 in-beam [J].

Gorska, M ;

Grawe, H ;

Foltescu, D ;

Fossan, DB ;

Grzywacz, R ;

Heese, J ;

Maier, KH ;

Rejmund, M ;

Roth, H ;

Schubart, R ;

Skeppstedt, O ;

Spohr, K .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 353 (03) :233-234

[3] PROPERTIES OF STRONGLY NEUTRON-RICH ISOTOPES OF GERMANIUM AND ARSENIC [J].

HOFF, P ;

FOGELBERG, B .

NUCLEAR PHYSICS A, 1981, 368 (02) :210-236

[4] Lifetime measurement of the πg9/2 isomer in 79As [J].

Hossain, I ;

Ishii, T ;

Makishima, A ;

Asai, M ;

Ichikawa, S ;

Itoh, M ;

Ishii, M ;

Kleinheinz, P ;

Ogawa, M .

PHYSICAL REVIEW C, 1998, 58 (02) :1318-1320

[5] Isomer-scope: A new instrument for in-beam gamma-ray spectroscopy through deep inelastic collisions [J].

Ishii, T ;

Itoh, M ;

Ishii, M ;

Makishima, A ;

Ogawa, M ;

Hossain, I ;

Hayakawa, T ;

Kohno, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 395 (02) :210-216

[6] The (νg29/2πp3/2)19/2- isomer in 71Cu and the prediction of its E2 decay from the shell model [J].

Ishii, T ;

Asai, M ;

Hossain, I ;

Kleinheinz, P ;

Ogawa, M ;

Makishima, A ;

Ichikawa, S ;

Itoh, M ;

Ishii, M ;

Blomqvist, J .

PHYSICAL REVIEW LETTERS, 1998, 81 (19) :4100-4103

[7] INVESTIGATION OF VERY NEUTRON DEFICIENT RU AND RH NUCLEI WITH THE HELP OF (CA-40, YP+Z-ALPHA-GAMMA) REACTIONS [J].

NOLTE, E ;

KORSCHINEK, G ;

HEIM, U .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1980, 298 (03) :191-205

[8] Acceleration of heavy ions by the JAERI tandem superconducting booster [J].

Takeuchi, S ;

Ishii, T ;

Matsuda, M ;

Zhang, Y ;

Yoshida, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 382 (1-2) :153-160

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