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Chirality in the A$\simeq$ 100 region

Abstract : Evidence for chirality in nuclei has been found in N ~ 75 isotopes in the A ~ 130 mass region. This phenomenon is a signature of triaxiality in nuclei and there is a clear need to study other regions of the Segre chart to see if further examples can be found. Potential Energy Surface (PES) calculations suggest that the N ~ 57–63, Z ~ 43–45 region is another promising island of triaxiality. The present experimental study with the Euroball -ray array, using the reaction 96Zr(13C, p2n) at 51 MeV is aimed to search for chirality in 106Rh. Channel selection of 106Rh was done using the charged-particle array DIAMANT. The yrast level scheme, studied previously in fusion-fission work, has been confirmed and extended in the present study. In addition, a new strongly coupled band, lying at an excitation energy of ~ 300 keV above the yrast band, has been found. The two structures show the characteristic properties of the chiral phenomenon.
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Submitted on : Wednesday, July 7, 2004 - 11:50:36 AM
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P. Joshi, D.G. Jenkins, P.M. Raddon, A.J. Simons, R. Wadsworth, et al.. Chirality in the A$\simeq$ 100 region. International conference on the labyrinth in nuclear structure, an EPS nuclear physics divisional conference 701, Jul 2003, Crete, Greece. pp.383-388, ⟨10.1063/1.1691733⟩. ⟨in2p3-00022027⟩



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