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HK: Fachverband Physik der Hadronen und Kerne

HK 13: Struktur und Dynamik von Kernen

HK 13.6: Vortrag

Montag, 19. März 2012, 18:00–18:15, P 4

Discovery and Cross-Section Measurement of Neutron-Rich Isotopes in the Element Range from Neodymium to Platinum at the FRS — •Fabio Farinon — GSI, Darmstadt, Germany

With a new detector setup and the high-resolution performance of the fragment separator FRS at GSI we discovered 57 new isotopes in the atomic number range of 60≤ Z ≤ 78: ^159−161Nd, ^160−163Pm, ^163−166Sm, ^167−168Eu, ^167−171Gd, ^169−171Tb, ^171−174Dy, ^173−176Ho, ^176−178Er, ^178−181Tm, ^183−185Yb, ^187−188Lu, ¹⁹¹Hf, ^193−194Ta, ^196−197W, ^199−200Re, ^201−203Os, ^204−205Ir and ^206−209Pt. The new isotopes have been unambiguously identified in reactions with a ²³⁸U beam impinging on a Be target at 1 GeV/u. The isotopic production cross-section for the new isotopes have been measured and compared with predictions of different model calculations. These results will be presented.