Phys. Rev. Lett. 80, 5289–5292 (1998)Drastic Increase of the Nuclear Deformation in Bromine between A = 79 and 77Received 19 February 1998; published in the issue dated 15 June 1998 The electric quadrupole interaction frequencies eQVzz/h of 77Br ( Iπ = 3/2-; T1/2 = 57 h) and 82Br ( Iπ = 5-; T1/2 = 35 h) in hcp Co were measured with modulated adiabatic fast passage on oriented nuclei. The electric quadrupole moment of 77Br is deduced to be Q = +0.530(22) b, which, on the condition of strong coupling, implies a nuclear deformation of β2 = +0.354(15). This manifests a drastic increase of the nuclear deformation between 79Br ( β2∼+0.22) and 77Br. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.5289
DOI:
10.1103/PhysRevLett.80.5289
PACS:
21.10.Ky, 23.20.En, 27.50.+e, 32.10.Fn
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