期刊
PHYSICAL REVIEW LETTERS
卷 99, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.99.022504
关键词
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The first data on the relative single-particle energies outside the doubly magic Sn-100 nucleus were obtained. A prompt 171.7(6) keV gamma-ray transition was correlated with protons emitted following the beta decay of Sn-101 and is interpreted as the transition between the single-neutron g(7/2) and d(5/2) orbitals in Sn-101. This observation provides a stringent test of current nuclear structure models. The measured nu g(7/2)-nu d(5/2) energy splitting is compared with values calculated using mean-field nuclear potentials and is used to calculate low-energy excited states in light Sn isotopes in the framework of the shell model. The correlation technique used in this work offers possibilities for future, more extensive spectroscopy near Sn-100.
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