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Delayed backbending in the ?h9/2 band of 187Ir

Authors :
Danchev M.
Balabanski D.L.
Yigitoglu I.
Akkus B.
Beausang C.W.
Bostan M.
Casten R.F.
Djongolov M.K.
Erduran M.N.
Erturk S.
Gladnishki K.A.
Gurdal G.
Goon J.Tm.
Hartley D.J.
Hecht A.A.
Krücken R.
Novak J.R.
Oktem Y.
Rainovski G.
Riedinger L.L.
Zamfir N.V.
Zeidan O.
Danchev, M., Faculty of Physics, St. Kliment Ohridski Univ. of Sofia, BG-1164 Sofia, Bulgaria, Department of Physics, University of Tennessee, Knoxville, TN 37996, United States -- Balabanski, D.L., Faculty of Physics, St. Kliment Ohridski Univ. of Sofia, BG-1164 Sofia, Bulgaria, Department of Physics, University of Tennessee, Knoxville, TN 37996, United States -- Yigitoglu, I., Hasan Ali Yucel Faculty of Education, Istanbul University, Beyazit, 34470 Istanbul, Turkey -- Akkus, B., Department of Physics, Istanbul University, Vezneciler, 34459 Istanbul, Turkey -- Beausang, C.W., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States -- Bostan, M., Department of Physics, Istanbul University, Vezneciler, 34459 Istanbul, Turkey -- Casten, R.F., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States -- Djongolov, M.K., Department of Physics, University of Tennessee, Knoxville, TN 37996, United States -- Erduran, M.N., Department of Physics, Istanbul University, Vezneciler, 34459 Istanbul, Turkey -- Erturk, S., Department of Physics, University of Nigde, 51200 Nigde, Turkey -- Gladnishki, K.A., Faculty of Physics, St. Kliment Ohridski Univ. of Sofia, BG-1164 Sofia, Bulgaria -- Gurdal, G., Clark University, Worcester, MA 10610, United States -- Goon, J.Tm., Department of Physics, University of Tennessee, Knoxville, TN 37996, United States -- Hartley, D.J., Department of Physics, University of Tennessee, Knoxville, TN 37996, United States, Department of Physics, United States Naval Academy, Annapolis, MD 21402, United States -- Hecht, A.A., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States -- Krücken, R., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States, Physik-Department E12, Tech. Universität München, 85748 Garching, Germany -- Novak, J.R., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States -- Oktem, Y., Department of Physics, Istanbul University, Vezneciler, 34459 Istanbul, Turkey -- Rainovski, G., Faculty of Physics, St. Kliment Ohridski Univ. of Sofia, BG-1164 Sofia, Bulgaria -- Riedinger, L.L., Department of Physics, University of Tennessee, Knoxville, TN 37996, United States -- Zamfir, N.V., WNSL, Physics Department, Yale University, New Haven, CT 06520, United States, Clark University, Worcester, MA 10610, United States, Natl. Inst. for Phys./Nucl. Eng., Bucharest-Magurele, Romania -- Zeidan, O., Department of Physics, University of Tennessee, Knoxville, TN 37996, United States
Publication Year :
2003
Publisher :
American Physical Society, 2003.

Abstract

High-spin states of 187Ir have been populated in the 176Yb(15N, 4n) reaction and measured with the YRAST Ball spectrometer. The ?h9/2 rotational band has been extended beyond the first alignment crossing, which was found at rotational frequency ??c ? 0.39 MeV. Two different scenarios for describing this crossing are considered: The alignment of an h9/2 proton or i13/2 neutron pair and it is concluded that a proton band crossing is more likely. A systematic study of the rotational alignment crossings in the ?h9/2 bands in the N=104, 106, 108 isotopes of 73Ta, 75Re, 77Ir, and 79Au is presented.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od......3082..e414cf0dbf7ec6491ed3e3d3496ca28d

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