Universität zu Köln

Taylor, M. J., Cullen, D. M., Procter, M. G., Back, T., Cederwall, B., Doncel, M., Braunroth, T., Dewald, A., Pakarinen, J., Grahn, T., Greenlees, P. T., Auranen, K., Jakobsson, U., Julin, R., Juutinen, S., Herzan, A., Konki, J., Leino, M., Liotta, R., Partanen, J., Peura, P., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Sorri, J., Stolze, S., Uusitalo, J., Liang, W. Y. and Xu, F. R. (2013). Competing single-particle and collective states in the low-energy structure of I-113. Phys. Rev. C, 88 (5). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1089-490X

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Abstract

To understand the low-energy structure of the neutron deficient iodine isotopes, lifetimes for the low-lying 9/2(+) and 11/2(+) positive-parity states in I-113 have been measured as tau = 28(4) ps and tau = 3.7(7) ps, respectively. The lifetime for the 11/2(-) state, which feeds the 9/2(+) and 11/2(+) states, was remeasured with improved accuracy as tau = 216(7) ps. The reduced transition probability, B(E2) = 32(5) W.u., for the 9/2(+) -> 5/2(+) transition agrees with that calculated within the shell model using a Hamiltonian based on the charge-dependent Bonn nucleon-nucleon interaction. In contrast, the much larger transition probability, B(E2) = 209(39) W.u., measured for the 11/2(+) -> 7/2(+) transition has been interpreted, with the aid of configuration-constrained total Routhian surface calculations, as resulting from a slightly gamma-soft rotor with an associated quadrupole deformation of beta(2) approximate to 0.18. Remarkably similar reduced E1 transition probabilities of 5.5(5) x 10(-4) and 4.9(5) x 10(-4) W.u. were deduced for the 11/2(-) -> 9/2(+) and 11/2(-) -> 11/2(+) transitions, respectively, which feed apparently dissimilar but competing structures.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Taylor, M. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cullen, D. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Procter, M. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Back, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cederwall, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Doncel, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Braunroth, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dewald, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pakarinen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grahn, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Greenlees, P. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Auranen, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jakobsson, U. UNSPECIFIED UNSPECIFIED UNSPECIFIED Julin, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Juutinen, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herzan, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Konki, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Leino, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Liotta, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Partanen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Peura, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rahkila, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruotsalainen, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sandzelius, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saren, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sorri, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stolze, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Uusitalo, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Liang, W. Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Xu, F. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-472128
DOI:	10.1103/PhysRevC.88.054307
Journal or Publication Title:	Phys. Rev. C
Volume:	88
Number:	5
Date:	2013
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1089-490X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RECOIL; TRANSITION; PLUNGER Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47212