On-line orientation of bromine isotopes |
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| Authors: | C G Barham S S Alghamdi A Bhagwat M Booth I S Grant M Lindroos J Rikovska B D D Singleton N J Stone P M Walker |
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| Institution: | (1) Schuster Laboratories, Manchester University, M13 9PL Manchester, UK;(2) Department of Physics, University of Surrey, GU2 5XH Guildford, UK;(3) Clarendon Laboratory, Oxford University, OX1 3PU Oxford, UK |
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| Abstract: | Assignments for the principal Nilsson configuration in light β+-decaying bromine isotopes were proposed in a contribution to the OLNO-1 conference. These assignments were made on the basis
of magnetic moments derived from the temperature dependence of anisotropies in daughter Se isotopes observed in the DOLIS-COLD
facility at Daresbury. Anisotropy measurements have since been extended to a lower base temperature in74m
Br and72g
Br decay, leading to more stringent limits on the ground state moment of72Br. The proposed π312]3/2 configuration for75Br has also now been confirmed by a measurement of the sign of its magnetic moment. This was done by observing the β-asymmetry
in75Br decay using high purity Si detectors mounted within the dilution refrigerator. |
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