arXiv 0810.41082008-10-22nucl-ex

与无中子双β衰变有关的原子核结构：~（76）Ge和~（76）Se的价质子

Nuclear Structure Relevant to Neutrinoless Double Beta Decay: the Valence Protons in 76Ge and 76Se

B. P. Kay, J. P. Schiffer, S. J. Freeman, T. Adachi, J. A. Clark, C. M. Deibel, H. Fujita, Y. Fujita, P. Grabmayr, K. Hatanaka, D. Ishikawa, H. Matsubara, Y. Me… 展开作者

B. P. Kay, J. P. Schiffer, S. J. Freeman, T. Adachi, J. A. Clark, C. M. Deibel, H. Fujita, Y. Fujita, P. Grabmayr, K. Hatanaka, D. Ishikawa, H. Matsubara, Y. Meada, H. Okamura, K. E. Rehm, Y. Sakemi, Y. Shimizu, H. Shimoda, K. Suda, Y. Tameshige, A. Tamii, C. Wrede

备注：: 4 pages, 3 figures
发表信息：: Phys.Rev.C79:021301,2009
DOI：: 10.1103/PhysRevC.79.021301

阅读 PDF

arXiv 页面 ↗HTML 原文 ↗

摘要：

如果核矩阵元已知，那么观测无中微子双β衰变的可能性就提供了确定有效中微子质量的机会。理论计算是不确定的，在衰变中活跃的核子占据价轨道可能是重要的。通过精确测量质子转移反应的截面，确定了这种衰变的候选核76 Ge和相应的子核76 Se基态价质子轨道的占据。在以前的工作中子占领，我们发现，费米面的质子比以前认为的更分散，和占领的至少三个轨道之间的两个0+基态显着变化。

英文摘要：

The possibility of observing neutrinoless double beta decay offers the opportunity of determining the effective neutrino mass if the nuclear matrix element were known. Theoretical calculations are uncertain and the occupations of valence orbits by nucleons active in the decay are likely to be important. The occupation of valence proton orbits in the ground states of 76Ge, a candidate for such decay, and 76Se, the corresponding daughter nucleus, were determined by precisely measuring cross sections for proton-removing transfer reactions. As in previous work on neutron occupations, we find that the Fermi surface for protons is much more diffuse than previously thought, and the occupancies of at least three orbits change significantly between the two 0+ ground states.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

相关论文