Eur. Phys. J. A (2011) 47: 44
https://doi.org/10.1140/epja/i2011-11044-1

Regular Article - Experimental Physics

Structures in ²⁰O from the ¹⁴C(⁷Li, p) reaction at 44 MeV

¹ Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, D-14109, Berlin, Germany
² Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, HR-10000, Zagreb, Croatia
³ Technische Universität München, James-Franck-Str. 1, D-85748, Garching, Germany
⁴ Sektion Physik der Universität München, Am Coulombwall 1, D-85748, Garching, Germany

^* e-mail: matko.milin@phy.hr

Received: 10 December 2010
Accepted: 18 February 2011
Published online: 24 March 2011

Abstract

We have studied the multi-nucleon transfer reaction ¹⁴ C(⁷ Li, p) at E _Lab(⁷ Li) = 44 MeV populating states of the neutron-rich oxygen isotope ²⁰O . The experiments have been performed at the Munich Tandem accelerator using the high-resolution Q3D magnetic spectrometer, with an overall energy resolution of 45keV. States were populated up to 20MeV excitation energy --65 states have been identified in the analysis, among which 42 are new. Rotational bands are proposed in terms of underlying intrinsic reflection-asymmetric cluster and prolate molecular structures (namely as parity doublet bands. A rectangular oblate structure is suggested for some very narrow states at high excitation energies.