MATRIX-ELEMENTS FOR 0 NU-BETA-BETA DECAY CALCULATED WITH THE OPERATOR EXPANSION METHOD AND QRPA WAVE-FUNCTIONS

被引：20
作者：
HIRSCH, M
WU, XR
KLAPDORKLEINGROTHAUS, HV
CHING, CR
HO, TH
机构：
[1] CCAST,WORLD LAB,CTR THEORET PHYS,BEIJING,PEOPLES R CHINA
[2] CHINESE ACAD SCI,INST THEORET PHYS,BEIJING,PEOPLES R CHINA
来源：
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI | 1993年 / 345卷 / 02期
关键词：
D O I：
10.1007/BF01293339
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：
Matrix elements for 0nubetabeta decay of Ge-76, Se-82, Cd-116, Te-128, Te-130, Xe-136 and Nd-150 are calculated combining proton-neutron quasiparticle RPA wave functions with the operator expansion method (OEM). The differences between OEM and earlier QRPA calculations, using the closure approximation, are investigated in detail. Special emphasis is put on the discussion on the differences between the 2nubetabeta and the 0nubetabeta mode, since currently 0nu matrix elements can only indirectly be tested. By a comparison with experimental data upper limits on the effective neutrino mass are derived.
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收藏
页码：163 / 169
页数：7
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