Статья

Observation of Octupole Structures in Radon and Radium Isotopes and Their Contrasting Behavior at High Spin

J. F. C. CocksOliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX, United KingdomP. A. ButlerOliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX, United KingdomK.J. CannOliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX, United KingdomP. T. GreenleesOliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX, United KingdomGraeme JonesOliver Lodge Laboratory, University of Liverpool, Liverpool L69 3BX, United KingdomS. J. AsztalosLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720P. BhattacharyyaChemistry Department, Purdue University, West Lafayette, Indiana 47907R. BrodaInstitute of Nuclear Physics, Radzikowskiego 152, PL-31-342 Kraków, PolandR. M. ClarkLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720M. A. DeleplanqueLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720R. M. DiamondLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720P. FallonLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720B. FornalInstitute of Nuclear Physics, Radzikowskiego 152, PL-31-342 Kraków, PolandPeter G. JonesDepartment of Physics, University of Jyväskylä, FIN-40351 Jyväskylä, FinlandR. JulinDepartment of Physics, University of Jyväskylä, FIN-40351 Jyväskylä, FinlandT. LauritsenPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439I. Y. LeeLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720A. O. MacchiavelliLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720R. W. MacLeodLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720J. F. SmithState University of New York, Stony Brook, New York, New York 11794-3800F. S. StephensLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720C. T. ZhangChemistry Department, Purdue University, West Lafayette, Indiana 47907

1997en

ABI

Аннотация

Multinucleon transfer reactions have been used, for the first time, to populate high-spin bands of alternating parity states in ${}^{218,220,222}\mathrm{Rn}$ and ${}^{222,224,226}\mathrm{Ra}$. The behavior of the angular momentum alignment with rotational frequency for the Rn isotopes is very different when compared with Ra and Th isotopes with $N\ensuremath{\approx}134$, indicating a transition from octupole vibrational to stable octupole deformation. Throughout the measured spin range the values of $|{D}_{0}/{Q}_{0}|$ remain constant for ${}^{222}\mathrm{Ra}$ and ${}^{226}\mathrm{Ra}$ and have a very small value for ${}^{224}\mathrm{Ra}$, suggesting that the charge and mass distributions are not affected appreciably by rotations.

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Идентификаторы

DOI: 10.1103/physrevlett.78.2920

Цитирования и источники

Цитирований: 2Использованных источников: 0

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