COEXISTENCE FEATURES IN THE SPHERICAL-DEFORMED A-ALMOST-EQUAL-TO-100 TRANSITION REGION - PICOSECOND LIFETIME MEASUREMENTS IN SR-97, Y-97, AND ZR-97

被引：30

作者：

BUSCHER, M

CASTEN, RF

GILL, RL

SCHUHMANN, R

WINGER, JA

MACH, H

MOSZYNSKI, M

SISTEMICH, K

机构：

[1] FORSCHUNGSZENTRUM JULICH, INST KERNPHYS, W-5170 JULICH 1, GERMANY

[2] CLARK UNIV, WORCESTER, MA 01610 USA

[3] IOWA STATE UNIV SCI & TECHNOL, US DOE, AMES LAB, AMES, IA 50011 USA

[4] INST NUCL STUDIES, PL-05400 OTWOCK, POLAND

来源：

PHYSICAL REVIEW C | 1990年 / 41卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.41.1115

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：

A recently developed technique for fast timing measurements using - coincidences with plastic, BaF2 and Ge detectors, respectively, has been used to measure lifetimes in the range 51500 ps in the neutron-rich nuclei Sr97, Y97, and Zr97. The results for Y97 are interpreted in terms of quadrupole vibrational excitations. For Sr97 the experimental data suggest the coexistence of spherical/vibrational and deformed states and allow the extraction of mixing matrix elements between them. A quadrupole moment of Q0=3.5(4) e b for the deformed states in Sr97 has been deduced. © 1990 The American Physical Society.

引用

页码：1115 / 1125

页数：11

共 24 条

[1] TIMING IMPROVED BY THE USE OF DYNODE SIGNALS STUDIED WITH DIFFERENT SCINTILLATORS AND PHOTOMULTIPLIERS [J].

BENGTSON, B ;

MOSZYNSKI, M .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1982, 204 (01) :129-140

[2] NUCLEAR-STRUCTURE OF Y-97 IN THE INTERACTING BOSON-FERMION MODEL [J].

BRANT, S ;

SISTEMICH, K ;

PAAR, V ;

LHERSONNEAU, G .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1988, 330 (04) :365-369

[3]

BRANT S, COMMUNICATION

[4]

DESHALIT A, 1974, THEORETICAL NUCLEAR, V1, P688

[5] A NEW FEBIAD-TYPE ION-SOURCE FOR USE AT THE REACTOR-BASED ISOL FACILITY TRISTAN [J].

GILL, RL ;

PIOTROWSKI, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 234 (02) :213-217

[6] COEXISTENCE OR STRONG-MIXING OF INTRUDER O+ STATES IN EVEN-EVEN ZR NUCLEI [J].

HEYDE, K ;

KIRCHUK, ED ;

FEDERMAN, P .

PHYSICAL REVIEW C, 1988, 38 (02) :984-992

[7] THE BETA-DECAY OF RB-95 AND RB-97 [J].

KRATZ, KL ;

OHM, H ;

SCHRODER, A ;

GABELMANN, H ;

ZIEGERT, W ;

PFEIFFER, B ;

JUNG, G ;

MONNAND, E ;

PINSTON, JA ;

SCHUSSLER, F ;

CRAWFORD, GI ;

PRUSSIN, SG ;

DEOLIVEIRA, ZM .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1983, 312 (1-2) :43-57

[8] BARIUM FLUORIDE INORGANIC SCINTILLATOR FOR SUBNANOSECOND TIMING [J].

LAVAL, M ;

MOSZYNSKI, M ;

ALLEMAND, R ;

CORMORECHE, E ;

GUINET, P ;

ODRU, R ;

VACHER, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, 1983, 206 (1-2) :169-176

[9] SHAPE COEXISTENCE IN THE N=59 ISOTONE SR-97 [J].

LHERSONNEAU, G ;

PFEIFFER, B ;

KRATZ, KL ;

OHM, H ;

SISTEMICH, K .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1988, 330 (03) :347-348

[10] A NEW HIGH-SPIN ISOMER IN Y-97(39)58 [J].

LHERSONNEAU, G ;

WEILER, D ;

KOHL, P ;

OHM, H ;

SISTEMICH, K ;

MEYER, RA .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1986, 323 (01) :59-67

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