title: Signature inversion caused by triaxiality and unpaired band crossings in 72Br
abstract: High-spin states in 72Br were studied with the EUROBALL III spectrometer using the 40Ca(40Ca,alpha3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.
authors.affiliation: Institut fur Kern- und Hadronenphysik, FZ Rossendorf, D-01314 Dresden, Germany and Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, P.O. Box MG-6, Romania.
authors.initials: C
authors.lastname: Plettner
authors.initials: I
authors.lastname: Ragnarsson
authors.initials: H
authors.lastname: Schnare
authors.initials: R
authors.lastname: Schwengner
authors.initials: L
authors.lastname: Kaubler
authors.initials: F
authors.lastname: Donau
authors.initials: A
authors.lastname: Algora
authors.lastname: de Angelis G
authors.initials: DR
authors.lastname: Napoli
authors.initials: A
authors.lastname: Gadea
authors.initials: J
authors.lastname: Eberth
authors.initials: T
authors.lastname: Steinhardt
authors.initials: O
authors.lastname: Thelen
authors.initials: M
authors.lastname: Hausmann
authors.initials: A
authors.lastname: Muller
authors.initials: A
authors.lastname: Jungclaus
authors.initials: KP
authors.lastname: Lieb
authors.initials: DG
authors.lastname: Jenkins
authors.initials: R
authors.lastname: Wadsworth
authors.initials: AN
authors.lastname: Wilson