A Study of the Jacobi Shape Transition in Light, Fast Rotating Nuclei with the EUROBALL IV, HECTOR and EUCLIDES Arrays

Journal Article · Fri Feb 27 04:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1691694· OSTI ID:20632959

Maj, A; Kmiecik, M; Brekiesz, M; Grebosz, J; Meczynski, W; Styczen, J; Zieblinski, M; Zuber, K ^[1]; Bracco, A; Camera, F; Benzoni, G; Million, B; Blasi, N; Brambilla, S; Leoni, S; Pignanelli, M; Wieland, O; Airoldi, A ^[2]; INFN sez Milano, I-20133 Milan ^[3]; Herskind, B ^[4] ; Bednarczyk, P ^[1]

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1. Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31342 Cracow (Poland)
2. Dipartimento di Fisica, I-20133 Milan (Italy)
3. Italy
4. Niels Bohr Insitute, Blegdamsvej 17, DK-2100 Copenhagen (Denmark)

The high-energy and discrete {gamma}-ray spectra, as well as the charged particle angular distribution have been measured in the reaction 105 MeV 18O+28Si using the EUROBALL IV, HECTOR and EUCLIDES arrays in order to investigate the predicted Jacobi shape transition in light nuclei. A comparison of the GDR line shape data with the predictions of the thermal shape fluctuation model, based on the most recent rotating liquid drop LSD calculations, shows evidence for such Jacobi shape transition in hot, rapidly rotating 46Ti. The found narrow low-energy component in the GDR line shape is interpreted as the consequence both of the elongated shape and of the Coriolis effect.

• OSTI ID: 20632959
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 701; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
DEFORMED NUCLEI
FLUCTUATIONS
GAMMA DETECTION
GAMMA SPECTRA
HEAVY ION FUSION REACTIONS
HIGH SPIN STATES
LIQUID DROP MODEL
MEV RANGE
OXYGEN 16 REACTIONS
SILICON 28 TARGET
TITANIUM 46