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Interacting boson models for N~Z nuclei

Abstract : This contribution discusses the use of boson models in the description of N~Z nuclei. A brief review is given of earlier attempts, initiated by Elliott and co-workers, to extend the interacting boson model of Arima and Iachello by the inclusion of neutron-proton s and d bosons with T = 1 (IBM-3) as well as T = 0 (IBM-4). It is argued that for the N~Z nuclei that are currently studied experimentally, a different approach is needed which invokes aligned neutron-proton pairs with angular momentum J = 2j and isospin T = 0. This claim is supported by an analysis of shell-model wave functions in terms of pair states. Results of this alternative version of the interacting boson model are compared with shell-model calculations in the 1g9/2 shell.
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http://hal.in2p3.fr/in2p3-00606145
Contributor : Michel Lion <>
Submitted on : Tuesday, July 5, 2011 - 3:09:19 PM
Last modification on : Thursday, February 1, 2018 - 1:35:47 AM

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P. van Isacker. Interacting boson models for N~Z nuclei. INTERNATIONAL SYMPOSIUM ON NEW FACES OF ATOMIC NUCLEI, Nov 2010, Okinawa, Japan. pp.15-22, ⟨10.1063/1.3584040⟩. ⟨in2p3-00606145⟩

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