Phys. Rev. C 43, 456–460 (1991)Observation of spin-aligned secondary fragment beams of 14BReceived 2 January 1990; published in the issue dated February 1991 An alignment of the nuclear spin has been observed for a secondary radioactive beam of 14B produced in the fragmentation of a 60 MeV/nucleon 18O beam impinging onto a 9Be target. The fragments were separated and analyzed in momentum by means of the doubly achromatic spectrometer LISE. The spin alignment was determined through a measurement of the anisotropy of the β-delayed γ-ray emission. The alignment is found to be small in the momentum region corresponding to the peak of the fragmentation yield, whereas it takes a large negative value for the high-momentum tail. This result is discussed in terms of a simple model of projectile fragmentation. The relevance of this result for the determination of nuclear moments far from stability is considered. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.43.456
DOI:
10.1103/PhysRevC.43.456
PACS:
25.70.Np, 24.70.+s
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