NEUTRON-RICH ISOTOPES AROUND THE R-PROCESS WAITING-POINT NUCLEI CU-79(29)50 AND ZN-80(30)50

被引：74

作者：

KRATZ, KL

GABELMANN, H

MOLLER, P

PFEIFFER, B

RAVN, HL

WOHR, A

机构：

[1] GESELL SCHWERIONENFORSCH GMBH,W-6100 DARMSTADT,GERMANY

[2] LUND INST TECHNOL,DEPT MATH PHYS,S-22007 LUND,SWEDEN

[3] CERN,CH-1211 GENEVA 23,SWITZERLAND

来源：

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1991年 / 340卷 / 04期

关键词：

D O I：

10.1007/BF01290331

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：

Beta-decay half-lives (T1/2) and delayed-neutron emission probabilities (P(n)) of very neutron-rich Cu to As nuclei have been measured, among them the new isotopes 77Cu48, 79Cu50, 81Zn51 and 84Ga53. With the T1/2 and P(n)-values of now four N congruent-to 50 "waiting-point" nuclei known, our hypothesis that the r-process has attained a local beta-flow equilibrium araound A congruent-to 80 is further strengthened.

引用

页码：419 / 420

页数：2

共 17 条

[1] BETA-DECAY HALF-LIVES OF NEUTRON RICH CU AND NI ISOTOPES PRODUCED BY THERMAL FISSION OF U-235 AND PU-239 [J].

BERNAS, M ;

ARMBRUSTER, P ;

BOCQUET, JP ;

BRISSOT, R ;

FAUST, H ;

KOZHUHAROV, C ;

SIDA, JL .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1990, 336 (01) :41-51

[2]

COWAN JJ, 1991, IN PRESS PHYS REP

[3] DECAY PROPERTIES OF ZN-75-80 AND QBETA-VALUES OF NEUTRON-RICH ZN AND GA ISOTOPES [J].

EKSTROM, B ;

FOGELBERG, B ;

HOFF, P ;

LUND, E ;

SANGARIYAVANISH, A .

PHYSICA SCRIPTA, 1986, 34 (6A) :614-623

[4] HALF-LIFE OF ZN-80 - THE 1ST MEASUREMENT FOR AN R-PROCESS WAITING-POINT NUCLEUS [J].

GILL, RL ;

CASTEN, RF ;

WARNER, DD ;

PIOTROWSKI, A ;

MACH, H ;

HILL, JC ;

WOHN, FK ;

WINGER, JA ;

MOREH, R .

PHYSICAL REVIEW LETTERS, 1986, 56 (17) :1874-1877

[5]

Kratz K.L., 1988, REV MOD ASTRONOMY, V1, P184, DOI DOI 10.1007/978-3-642-74188-3_9

[6] THE BETA-DECAY HALF-LIFE OF CD-130(48)82 AND ITS IMPORTANCE FOR ASTROPHYSICAL R-PROCESS SCENARIOS [J].

KRATZ, KL ;

GABELMANN, H ;

HILLEBRANDT, W ;

PFEIFFER, B ;

SCHLOSSER, K ;

THIELEMANN, FK .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1986, 325 (04) :489-490

[7] GAMOW-TELLER DECAY OF ZN-80 - SHELL STRUCTURE AND ASTROPHYSICAL IMPLICATIONS [J].

KRATZ, KL ;

HARMS, V ;

WOHR, A ;

MOLLER, P .

PHYSICAL REVIEW C, 1988, 38 (01) :278-284

[8]

Lund E., 1988, AIP C P, V164, P578

[9]

MOLLER P, 1991, UNPUB QRP PREDICTION

[10] GAMMA-RAY AND DELAYED NEUTRON BRANCHING DATA FOR THE NEW OR LITTLE KNOWN ISOTOPES GE-84, GE-85 AND AS-84, AS-85 [J].

OMTVEDT, JP ;

HOFF, P ;

HELLSTROM, M ;

SPANIER, L ;

FOGELBERG, B .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 338 (02) :241-242

← 1 2 →