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Romedon Lasijo Raymond K. Sheline Roger D. Griffioen James L. DuBard 《Zeitschrift für Physik A Hadrons and Nuclei》1972,253(1):17-27
Tritons from the reaction139La(d, t)138La atE d=16 MeV were analyzed at eleven reaction angles from 22 ° to 90 ° with a broad-range magnetic spectrograph. TheQ-value of the reaction is ?2522±5 keV. The nine lowest-lying states in138La are interpreted in terms of the shell model configurations (πg 7/2)?1 (vd 3/2)?1, (πg 7/2)?1 (vs 1/2)?1 and (πg 7/2)?2 (πd 5/2)?1(vd 3/2)?1. Seven levels in the energy range of 700–1300 keV are populated byl=5 transitions and are interpreted as coming from the (πg 7/2)?1(vh 11/2)?1 configuration. The ground state of138La is shown to haveJ π=5+. Therefore, beta decay by unique second-forbidden transitions to the 2+ one-phonon states of138Ce and138Ba must be inferred in spite of unusually high logft values of 19.2 and 18.5, respectively. 相似文献
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Raymond A. Dewberry Raymond K. Sheline Robert G. Lanier Romedan Lasijo 《Zeitschrift für Physik A Hadrons and Nuclei》1982,307(4):351-364
Fifty-six levels in166Ho have been observed up to an excitation energy of 2,000 keV using the167Er(t,α)166Ho reaction with 17.0-MeV tritons. An anomalously small spectroscopic factor for the states in the [411↑±633↑] configuration has been observed, which has been interpreted as evidence for a large amount of configuration mixing with the states in the [523↑±521↑] configuration. Residual interaction calculations with a finite range central force have failed to account for the large configuration mixing observed. New assignments for 29 rotational states have been proposed. An anomalous singlet-triplet splitting is observed in the [404↓±633↑] configuration. 相似文献
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