Investigation of high-spin states in {sup 53}Fe

Journal Article · Fri Jul 01 00:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.014307· OSTI ID:20698822

Rietz, R du; Rudolph, D; Ekman, J; Fahlander, C; Andreoiu, C; Mineva, M N ^[1]; Williams, S J; Bentley, M A; Chandler, C; Hammond, G ^[2]; Axiotis, M; De Angelis, G; Gadea, A; Marginean, N; Napoli, D R; Nespolo, M; Rusu, C; Tonev, D; Ur, C A ^[3]; Carpenter, M P ^[4]

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1. Department of Physics, Lund University, S-22100 Lund (Sweden)
2. School of Chemistry and Physics, Keele University, Keele, Staffordshire ST5 5BG (United Kingdom)
3. Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy)
4. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); and others

The fusion-evaporation reactions {sup 28}Si({sup 32}S,1{alpha}2p1n){sup 53}Fe at 125 MeV and {sup 24}Mg({sup 32}S,2p1n){sup 53}Fe at a 95-MeV beam energy were used to investigate excited states in {sup 53}Fe. The combination of the Gammasphere Ge detector array and ancillary devices led to the construction of an extensive level scheme comprising some 90 transitions connecting 40 states. The lifetime of the yrast 25/2{sup -} state and upper limits for the lifetimes of a number of additional states were determined using the Cologne plunger device coupled to the GASP {gamma}-ray spectrometer. The experimental results are compared to large-scale shell-model calculations using different sets of two-body matrix elements. In particular, predictions on electromagnetic decay properties such as lifetimes, branching ratios, and mixing ratios are studied in detail.

• OSTI ID: 20698822
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 72, Issue 1; Other Information: DOI: 10.1103/PhysRevC.72.014307; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
BRANCHING RATIO
EXCITED STATES
GAMMA SPECTRA
GAMMA SPECTROSCOPY
GE SEMICONDUCTOR DETECTORS
HEAVY ION FUSION REACTIONS
HIGH SPIN STATES
IRON 53
LIFETIME
MAGNESIUM 24 TARGET
MATRIX ELEMENTS
MEV RANGE
MIXING RATIO
SHELL MODELS
SILICON 28 TARGET
SULFUR 32 REACTIONS
TWO-BODY PROBLEM
YRAST STATES