First cascades in 73Br and high-spin states in 75Br

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The reaction 54Fe(28Si, xpyn) at 128 MeV was employed to identify two cascades in 73Br for the first time. The cascades were identified by employing the technique of measuring gamma rays in coincidence with reaction products of mass 73, separated in a recoil mass spectrometer. The energy spacings in the bands indicate that the quadrupole deformation in 73Br is larger than that of 75Br. The previously known bands in 75Br were extended up to 29/2+ for the positive-parity band and up to 33/2- for the negative-parity band.

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Journal of Physics G: Nuclear Physics

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