DPG Phi
Verhandlungen
Verhandlungen
DPG

Bochum 2009 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

HK: Fachverband Hadronen und Kerne

HK 74: Fundamental Symmetries

HK 74.2: Talk

Thursday, March 19, 2009, 17:00–17:15, H-ZO 70

Unexpected asymmetry in B(E1) strengths of mirror nuclei 67As and 67Se — •Riccardo Orlandi1,2, Giacomo de Angelis1, and Pier Giorgio Bizzeti31Laboratori Nazionali di Legnaro, Legnaro, Italy — 2The University of the West of Scotland, Paisley, United Kingdom — 3INFN Sezione di Firenze and Universita’ di Firenze, Italy

Discrepancies revealed in a recent measurement of the E1 transition rates of mirror transitions in 3367As34 and 3467Se33 can be interpreted to indicate a large isoscalar component in the reduced E1 transition strengths. Neither the explicit inclusion of higher order terms in the transition operator, nor the the mixing with close-lying levels suffice to yield an effect of comparable size. On the other hand, coherent contributions with higher-lying states, via the Isovector Giant Monopole Resonance (IVGMR), would induce an isoscalar term sufficiently large to account for the asymmetries observed in the experiment.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2009 > Bochum