Göttingen 1997 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 5: Kernspektroskopie, schwere Kerne I

HK 5.5: Vortrag

Montag, 24. März 1997, 15:15–15:30, HS F

Chiralität der Rotation dreiaxialer Kerne — •Stefan Frauendorf¹ and Jie Meng² — ¹IKH, FZ - Rossendorf, Dresden — ²Physik Department, TU München

The Tilted Axis Cranking theory is applied to the model of two particles coupled to a triaxial rotor. Comparing with the exact quantal solutions, the interpretation and quality of the mean field approximation is studied. Conditions are discussed when the axis of rotation lies inside or outside of the principal planes of the triaxial density distribution. The planar solutions represent Δ I = 1 bands, whereas the aplanar solutions represent pairs of indentical Δ I = 1 bands with the same parity. The two bands differ by the chirality of the principal axes with respect to the angular momentum vector. The transition from planar to chiral solutions is evident in both the quantal and the mean field calculations. Its physical origin is discussed.