Phys. Rev. Lett. 94, 122502 (2005) [4 pages]Direct Observation of the 4+-to-2+ Gamma Transition in 8BeSee Also: Publisher's Note Received 16 September 2004; published 1 April 2005; publisher error corrected 4 April 2005 Electromagnetic transition rates provide an important test for nuclear structure models. The nucleus 8Be exhibits a pronounced alpha-cluster structure and is a building block for more complex cluster nuclei. Here we report on the first observation of the gamma transition between the 4+ and 2+ states of 8Be in the 4He+4He reaction. The measured on-resonance cross section of 165±54 nb leads to a B(E2) of25±8e2 fm4, in good agreement with alpha-cluster models and sophisticated ab initio structure calculations. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.122502
DOI:
10.1103/PhysRevLett.94.122502
PACS:
23.20.Js, 24.30.Gd, 25.55.–e, 27.20.+n
See AlsoPublisher's Note: V. M. Datar, Suresh Kumar, D. R. Chakrabarty, V. Nanal, E. T. Mirgule, A. Mitra, and H. H. Oza, Publisher’s Note: Direct Observation of the 4+-to-2+ Gamma Transition in 8Be [Phys. Rev. Lett. 94, 122502 (2005)], Phys. Rev. Lett. 94, 139902 (2005). |
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