Proton emitters <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>140</mn></mrow></msup></mrow><mi mathvariant="normal">Ho</mi></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>141</mn></mrow></msup></mrow><mi mathvariant="normal">Ho</mi></math></span>: Probing the structure of unbound Nilsson orbitals

K. Rykaczewski; J. C. Batchelder; C. R. Bingham; T. Davinson; T. N. Ginter; C. J. Gross; R. Grzywacz; M. Karny; B. D. MacDonald; J. F. Mas; J. W. McConnell; A. Piechaczek; R. C. Slinger; K. S. Toth; W. B. Walters; P. J. Woods; E. F. Zganjar; B. Barmore; L. Gr. Ixaru; A. T. Kruppa; W. Nazarewicz; M. Rizea; T. Vertse

doi:10.1103/PhysRevC.60.011301

Rapid Communication

Proton emitters $^{140} Ho$ and $^{141} Ho$ : Probing the structure of unbound Nilsson orbitals

K. Rykaczewski, J. C. Batchelder, C. R. Bingham, T. Davinson, T. N. Ginter, C. J. Gross, R. Grzywacz, M. Karny, B. D. MacDonald, J. F. Mas, J. W. McConnell, A. Piechaczek, R. C. Slinger, K. S. Toth, W. B. Walters, P. J. Woods, E. F. Zganjar, B. Barmore, L. Gr. Ixaru, A. T. Kruppa, W. Nazarewicz, M. Rizea, and T. Vertse

Phys. Rev. C 60, 011301(R) – Published 16 June 1999

Abstract

Two new proton emitting states in the deformed nuclei $^{140} Ho$ ${(E}_{p} = 1086 \pm 10 keV,$ $T_{1 / 2} = 6 \pm 3 ms)$ and $^{141 m} Ho$ ${(E}_{p} = 1230 \pm 20 keV,$ $T_{1 / 2} = 8 \pm 3 μ s)$ have been identified. Experimental data are interpreted using the coupled-channels Schrödinger equation with outgoing wave boundary conditions. The observed resonances are discussed in terms of deformed single-proton orbitals close to the $Z = 67$ Fermi level.

Received 24 February 1999

DOI:https://doi.org/10.1103/PhysRevC.60.011301

Authors & Affiliations

K. Rykaczewski^1,2, J. C. Batchelder³, C. R. Bingham^1,4, T. Davinson⁵, T. N. Ginter⁶, C. J. Gross^1,3, R. Grzywacz^2,4, M. Karny^2,7, B. D. MacDonald⁸, J. F. Mas⁷, J. W. McConnell¹, A. Piechaczek⁹, R. C. Slinger⁵, K. S. Toth¹, W. B. Walters¹⁰, P. J. Woods⁵, E. F. Zganjar⁹, B. Barmore^4,7, L. Gr. Ixaru¹¹, A. T. Kruppa^7,12, W. Nazarewicz^1,2,4, M. Rizea¹¹, and T. Vertse^7,12

¹Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
²Warsaw University, Faculty of Physics, PL-00681 Warsaw, Poland
³Oak Ridge Institute of Science and Education, Oak Ridge, Tennessee 37831
⁴University of Tennessee, Knoxville, Tennessee 37996
⁵University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom
⁶Vanderbilt University, Nashville, Tennessee 37235
⁷Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee 37831
⁸Georgia Institute of Technology, Atlanta, Georgia 30332
⁹Louisiana State University, Baton Rouge, Louisiana 70803
¹⁰University of Maryland, College Park, Maryland 20742
¹¹Institute of Physics and Nuclear Engineering “Horia Hulubei,” P.O. Box MG-6, Bucharest, Romania
¹²Institute of Nuclear Research, Hungarian Academy of Sciences, H-4001 Debrecen, Hungary

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Vol. 60, Iss. 1 — July 1999

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