Article

High-spin proton alignments and evidence for a second band with enhanced deformation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>171</mml:mn></mml:msup></mml:math>Hf

Y. C. ZhangDepartment of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAQ. A. IjazDepartment of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAW. C.Department of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAG.B. HagemannM. P. CarpenterPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAP. ChowdhuryDepartment of Physics, University of Massachusetts, Lowell, Massachusetts 01854, USAD. M. CullenSchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomM. DjongolovDepartment of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USAD. J. HartleyDepartment of Physics, United States Naval Academy, Annapolis, Maryland 21402, USAR. V. F. JanssensPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAT. L. KhooPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAF. G. KondevNuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USAT. LauritsenPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USAE. Ngiojoi-YogoDepartment of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAS. W. ØdegårdDepartment of Physics, University of Oslo, N-0316 Oslo, NorwayL. L. RiedingerDepartment of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USAS. V. RigbySchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomD. G. RouxDepartment of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAD. T. ScholesSchuster Laboratory, University of Manchester, Manchester M13 9PL, United KingdomRahul YadavDepartment of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USAS. ZhuPhysics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

Physical Review Cjournal2012lv

ABI

Abstract

High-spin properties of the nucleus ${}^{171}$Hf were studied through the ${}^{128}$Te(${}^{48}$Ca,5$n$) reaction. Previously known bands have been extended to significantly higher spins and four new bands have been extracted from these data. The results are discussed within the framework of the cranked shell model aided by a comparison with level structures in the neighboring nuclei. The band crossings at rotational frequencies $\ensuremath{\sim}$500 keV are interpreted as caused by the alignments of ${h}_{11/2}$ and ${h}_{9/2}$ proton orbitals. Band ED2 exhibits an alignment pattern similar to that of band ED1 which was reported in a recent paper and proposed to be built on a second potential energy minimum involving the deformation-driving proton ${i}_{13/2}\ensuremath{\bigotimes}{h}_{9/2}$ configuration. It is likely that band ED2 is also associated with a deformation enhanced with respect to that of the normal deformed structures. Further experimental investigation is needed to ascertain the nature of this band.

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Topics

Nuclear physics research studies Advanced NMR Techniques and Applications Atomic and Molecular Physics

Identifiers

DOI: 10.1103/physrevc.85.064307

Citations and references

Cited by 040 references

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