Rotation of highly excited nuclei: Mass dependence of rotational damping

Journal Article · Tue Nov 16 00:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1301779· OSTI ID:21207531

Million, B; Frattini, S; Bracco, A; Leoni, S; Camera, F; Blasi, N; Lo Bianco, G; Pignanelli, M; Vigezzi, E ^[1]; Herskind, B; Doessing, T; Bergstroem, M; Varmette, P; Toermaenen, S ^[2]; Maj, A; Kmiecik, M ^[3]; Napoli, D R ^[4]; Matsuo, M ^[5]

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1. Dipartimento di Fisica, Universita di Milano, and INFN sez. Milano, via Celoria, 16, 20133 Milano (Italy)
2. Niels Bohr Institute, Copenhagen (Denmark)
3. Henryk Niewodniczanski Institute of Nuclear Physics, 31-342 Krakow (Poland)
4. INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)
5. Yukawa Institute of Physics, Kyoto (Japan)

The {gamma}-decay of the continuum has been measured in two mass regions. The excitation function of the continuum decay as well as spectral shape and fractional Doppler shifts are discussed for both {sup 114}Te and {sup 164}Yb compound nuclei, and show the typical features of rotational collective motion. Moreover, in both cases an upper limit of {gamma}{sub rot} is given and the number of decay-paths is determined from the fluctuation analysis method. Simulations based on microscopic calculations of the rotational damping model reproduce quite well the experimental findings for both N{sub path} and the scaling of {gamma}{sub rot} as a function of the mass number.

• OSTI ID: 21207531
• Journal Information: AIP Conference Proceedings, Vol. 495, Issue 1; Conference: Conference on experimental nuclear physics in europe: Facing the next millennium, Sevilla (Spain), 21-26 Jun 1999; Other Information: DOI: 10.1063/1.1301779; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COMPOUND NUCLEI
COMPUTERIZED SIMULATION
DAMPING
DOPPLER EFFECT
ENERGY-LEVEL TRANSITIONS
EXCITATION FUNCTIONS
FLUCTUATIONS
GAMMA DECAY
GAMMA SPECTROSCOPY
NUCLEAR STRUCTURE
ROTATION
ROTATIONAL STATES
TELLURIUM 114
YTTERBIUM 164