Eur. Phys. J. A (2008) 36: 243-250
https://doi.org/10.1140/epja/i2008-10589-2

Regular Article - Experimental Physics

Study of the ¹³⁰Ba nucleus with the (p, t) reaction

¹ Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), R-77125, Bucharest, Romania
² Fakultät für Physik, Ludwig Maximilians Universität München, D-85748, Garching, Germany
³ Physik-Department, Technische Universität München, D-85748, Garching, Germany
⁴ Centre de Spectrométrie Nucléaire et Spectrométrie de Masse, CNRS/IN2P3, Univ. Paris-Sud, F-91405, ORSAY-Campus, France

^* e-mail: bucurescu@tandem.nipne.ro

Received: 7 February 2008
Accepted: 7 May 2008
Published online: 10 June 2008

Abstract

Excited states in ¹³⁰Ba have been studied with the 25MeV ¹³²Ba(p, t)¹³⁰Ba reaction with 8keV energy resolution, at the Munich Q3D spectrograph. 27 excited states were observed up to 2.6MeV excitation energy, for 21 of them spin and parity being confirmed or assigned. These results complement earlier measurements concerning the systematics of 0⁺ states in ¹³²Ba and ¹³⁴Ba , and allow a more detailed comparison with predictions of different nuclear-structure models. The comparison with interacting boson model calculations brings additional evidence in favor of a description of this nucleus by parameters close to the O(6) symmetry.