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Investigation of octupole vibrational states in 150Nd via inelastic proton scattering (p,p 'gamma)

M. Elvers ; S. Pascu ; T. Ahmed ; T. Ahn ; V. Anagnostatou ; N. Cooper ; C. Deng ; J. Endres ; P. Goddard ; Andreas Martin Heinz (Institutionen för fundamental fysik, Subatomär fysik) ; G. Ilie ; E. Jiang ; C. Kuppersbusch ; D. Radeck ; D. Savran ; N. Shenkov ; V. Werner ; A. Zilges ; Program Cscan Unpub Prio Ma ; Reviews Of Modern Physics V. P. Sten Rf
Physical Review C (0556-2813). Vol. 84 (2011), 5,
[Artikel, refereegranskad vetenskaplig]

Octupole vibrational states were studied in the nucleus (150)Nd via inelastic proton scattering with 10.9-MeV protons, which are an excellent probe to excite natural parity states. For the first time in (150)Nd, both the scattered protons and the gamma rays were detected in coincidence, giving the possibility to measure branching ratios in detail. Using the coincidence technique, the B(E1) ratios of the decaying transitions for 10 octupole vibrational states and other negative-parity states to the yrast band were determined and compared to the Alaga rule. The positive and negative-parity states revealed by this experiment are compared with interacting boson approximation calculations performed in the spdf boson space. The calculations are found to be in good agreement with the experimental data, for both positive and negative-parity states.

Nyckelord: interacting boson approximation, rare-earth nuclei, deformed nuclei, atomic-nuclei, transitions, model



Denna post skapades 2011-12-22. Senast ändrad 2015-03-30.
CPL Pubid: 150828

 

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Institutioner (Chalmers)

Institutionen för fundamental fysik, Subatomär fysik (2005-2013)

Ämnesområden

Fysik

Chalmers infrastruktur