ISOMERIC PROTON EMISSION FROM THE DRIP-LINE NUCLEUS TA-156

被引：28

作者：

LIVINGSTON, K

WOODS, PJ

DAVINSON, T

DAVIS, NJ

HOFMANN, S

JAMES, AN

PAGE, RD

SELLIN, PJ

SHOTTER, AC

机构：

[1] GESELL SCHWERIONENFORSCH MBH, W-6100 DARMSTADT 11, GERMANY

[2] UNIV LIVERPOOL, OLIVER LODGE LAB, LIVERPOOL L69 3BX, ENGLAND

来源：

PHYSICAL REVIEW C | 1993年 / 48卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.48.R2151

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 new proton emission line has been observed in the nucleus 156Ta using the fusion reaction Ni-58 + Pd-102 --> 160W*, E(x) almost-equal-to 61 MeV. The line has a proton energy E(p) = 1103 +/- 12 keV corresponding to a Q value Q(p) = 1110 +/- 12 keV, and a half-life of 320 +/- 80 ms. The proton line is assigned to a approximately 3% decay branch from a high spin pih11/2nuf7/2 isomeric state on the basis of systematics. The subsequent implications for level ordering in this region beyond the proton drip line are discussed.

引用

页码：R2151 / R2153

页数：3

共 12 条

[1] NUCLEON-NUCLEUS OPTICAL-MODEL PARAMETERS, A]40, E[50-MEV [J].

BECCHETTI, FD ;

GREENLEES, GW .

PHYSICAL REVIEW, 1969, 182 (04) :1190-+

[2]

HABENICHT W, 1984, THD SCHRIFTENR WISS, V26, P244

[3] THE NEW NUCLEI OS-162 AND TA-156 AND THE N=84 ALPHA-EMITTING ISOMERS [J].

HOFMANN, S ;

ARMBRUSTER, P ;

BERTHES, G ;

FAESTERMANN, T ;

GILLITZER, A ;

HESSBERGER, FP ;

KURCEWICZ, W ;

MUNZENBERG, G ;

POPPENSIEKER, K ;

SCHOTT, HJ ;

ZYCHOR, I .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1989, 333 (01) :107-108

[4]

Hofmann S., 1981, 4th International Conference on Nuclei Far from Stability (CERN 81-09), P190

[5]

HOFMANN S, 1989, PARTICLE EMISSION NU, V2, pCH2

[6]

KLEINHEINZ P, 1992, 6TH P INT C NUCL FAR, P691

[7]

LIANG CF, 1980, Z PHYS A, V293, P303

[8] DISCOVERY OF NEW PROTON EMITTERS RE-160 AND TA-156 [J].

PAGE, RD ;

WOODS, PJ ;

CUNNINGHAM, RA ;

DAVINSON, T ;

DAVIS, NJ ;

HOFMANN, S ;

JAMES, AN ;

LIVINGSTON, K ;

SELLIN, PJ ;

SHOTTER, AC .

PHYSICAL REVIEW LETTERS, 1992, 68 (09) :1287-1290

[9] A DOUBLE-SIDED SILICON STRIP DETECTOR SYSTEM FOR PROTON RADIOACTIVITY STUDIES [J].

SELLIN, PJ ;

WOODS, PJ ;

BRANFORD, D ;

DAVINSON, T ;

DAVIS, NJ ;

IRELAND, DG ;

LIVINGSTON, K ;

PAGE, RD ;

SHOTTER, AC ;

HOFMANN, S ;

HUNT, RA ;

JAMES, AN ;

HOTCHKIS, MAC ;

FREER, MA ;

THOMAS, SL .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 311 (1-2) :217-223

[10] INVESTIGATION OF A = 155 AND A = 151 NUCLIDES - IDENTIFICATION OF THE TM-155 S1/2 ISOMER AND OF THE YB-155 BETA-DECAY BRANCH [J].

TOTH, KS ;

VIERINEN, KS ;

KORTELAHTI, MO ;

SOUSA, DC ;

NITSCHKE, JM ;

WILMARTH, PA .

PHYSICAL REVIEW C, 1991, 44 (05) :1868-1877

← 1 2 →