Systematic study of beta and double beta decay to excited final states

被引:159
作者
Aunola, M
Suhonen, J
机构
[1] Dept. of Physics, University of Jyväskylä, FIN-40351 Jyväskylä
关键词
D O I
10.1016/0375-9474(96)00087-5
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 systematic study of the two-neutrino double beta (2 nu beta beta) decay to the final ground state and excited states is performed within an extension of the quasiparticle random-phase approximation (QRPA) model. In this extension, the multiple commutator model (MCM), a simultaneous treatment of the double-odd and double-even nuclei is possible by assuming their states to have the structure of one or two QRPA phonons. The MCM calculation is done for nine 2 nu beta(-)beta(-) decays and six 2 nu ECEC decays, and systematics of the relevant matrix elements and half-lives have been created. The study of the 2 nu beta beta-decay rates is complemented with the MCM study of the single-beta-decay properties of the relevant nuclei within the double-beta isobaric chains. The Woods-Saxon single-particle energies have been corrected near the Fermi surface by comparing the BCS quasiparticle energies with spectroscopic data of odd-mass nuclei. Pairing gaps, energy systematics of the Gamow-Teller states and the available beta-decay data have been used to obtain effective, model-space adapted, two-body matrix elements starting from the G-matrix elements of the Bonn one-boson-exchange potential. This enables a parameter-free calculation of the double Gamow-Teller matrix elements and theoretical prediction of double-beta half-lives.
引用
收藏
页码:133 / 166
页数:34
相关论文
共 82 条
[1]  
ARNOLD R, 1995, JETP LETT+, V61, P170
[2]   SEARCH FOR BETA-BETA-DECAY OF ZR-96 AND ND-150 TO EXCITED-STATES OF MO-96 AND SM-150 [J].
ARPESELLA, C ;
BARABASH, AS ;
BELLOTTI, E ;
BROFFERIO, C ;
FIORINI, E ;
SVERZELLATI, PP ;
UMATOV, VI .
EUROPHYSICS LETTERS, 1994, 27 (01) :29-34
[3]   THE 1993 ATOMIC MASS EVALUATION .1. ATOMIC MASS TABLE [J].
AUDI, G ;
WAPSTRA, AH .
NUCLEAR PHYSICS A, 1993, 565 (01) :1-65
[4]   CONFIRMATION OF THE OBSERVATION OF 2-NU BETA-BETA DECAY OF GE-76 [J].
AVIGNONE, FT ;
BRODZINSKI, RL ;
GUERARD, CK ;
KIRPICHNIKOV, IV ;
MILEY, HS ;
POGOSOV, VS ;
REEVES, JH ;
STAROSTIN, AS ;
TAMANYAN, AG .
PHYSICS LETTERS B, 1991, 256 (3-4) :559-561
[5]  
Baglin C. M., 1992, Nuclear Data Sheets, V66, P347, DOI 10.1016/0090-3752(92)80074-T
[6]  
Baglin C. M., 1993, Nuclear Data Sheets, V70, P1, DOI 10.1006/ndsh.1993.1044
[7]   THE HEIDELBERG-MOSCOW DOUBLE BETA-DECAY EXPERIMENT WITH ENRICHED GE-76 - 1ST RESULTS [J].
BALYSH, A ;
BECK, M ;
BELYAEV, ST ;
BOCKHOLT, J ;
DEMEHIN, A ;
ECHTERNACH, J ;
GUROV, A ;
HEUSSER, G ;
HIRSCH, M ;
KLAPDORKLEINGROTHAUS, HV ;
KONDRATENKO, I ;
LEBEDEV, VI ;
MAIER, B ;
MULLER, A ;
PETRY, F ;
PIEPKE, A ;
SCHMIDT-ROHR, U ;
STRECKER, H ;
ZUBER, K .
PHYSICS LETTERS B, 1992, 283 (1-2) :32-36
[8]   MEASUREMENT OF THE BETA-BETA-2V DECAY OF GE-76 [J].
BALYSH, A ;
BECK, M ;
BELYAEV, ST ;
BENSCH, F ;
BOCKHOLT, J ;
DEMEHIN, A ;
GUROV, A ;
HEUSSER, G ;
KLAPDORKLEINGROTHAUS, HV ;
KONDRATENKO, I ;
KOTELNIKOV, D ;
LEBEDEV, VI ;
MAIER, B ;
MULLER, A ;
PETRY, F ;
PIEPKE, A ;
PRONSKY, A ;
STRECKER, H ;
VOLLINGER, M ;
ZUBER, K .
PHYSICS LETTERS B, 1994, 322 (03) :176-181
[9]   SEARCH FOR BETA-BETA-DECAY OF GE-76 TO THE EXCITED-STATES IN SE-76 [J].
BARABASH, AS ;
DERBIN, AV ;
POPEKO, LA ;
UMATOV, VI .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 352 (02) :231-233
[10]   RESULTS OF THE EXPERIMENT ON THE SEARCH FOR DOUBLE BETA-DECAY OF XE-136, XE-134 AND XE-124 [J].
BARABASH, AS ;
KUZMINOV, VV ;
LOBASHEV, VM ;
NOVIKOV, VM ;
OVCHINNIKOV, BM ;
POMANSKY, AA .
PHYSICS LETTERS B, 1989, 223 (02) :273-276