Pairing properties of the double-β emitter 116Cd

被引：5
|
作者：
Sharp, D. K. [1 ]
Freeman, S. J. [1 ]
Cropper, B. D. [1 ]
Davies, P. J. [1 ]
Faestermann, T. [2 ,3 ]
Hatfield, T. M. [1 ]
Hertenberger, R. [4 ]
Hughes, S. J. F. [1 ]
MacGregor, P. T. [1 ]
Wirth, H-F [4 ]
机构：
[1] Univ Manchester, Schuster Lab, Oxford Rd, Manchester M13 9PL, Lancs, England
[2] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany
[3] Munchner Univ MML, Maier Leibnitz Lab, D-85748 Garching, Germany
[4] Ludwig Maximillians Univ Munchen, Fak Phys, D-85748 Garching, Germany
来源：
PHYSICAL REVIEW C | 2019年 / 100卷 / 02期
基金：
英国科学技术设施理事会;
关键词：
P; T; NUCLEI; STATES; CD; SN;
D O I：
10.1103/PhysRevC.100.024329
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：
The pairing properties of the neutrinoless double-beta decay candidate Cd-116 have been investigated. Measurements of the two-neutron removal reactions on isotopes of Cd-114,Cd-116 have been made in order to identify 0(+) strength in the residual nuclei up to approximate to 3 MeV. No significant L = 0 strength has been found in excited states indicating that the Bardeen-Cooper-Schrieffer (BCS) approximation is a reasonable basis to describe the neutrons in the ground state. This approximation avoids complications in calculations of double-beta decay matrix elements that use the quasiparticle random-phase approximation (QRPA) techniques. However this is not the case for the protons, where pair vibrations are prevalent and the BCS approximation is no longer valid, complicating the use of traditional QRPA techniques for this system as a whole.
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页数：5
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