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Phys. Rev. C 64, 027303 (2001) [3 pages]

Description of the Gamow-Teller resonance within the phonon damping model

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Nguyen Dinh Dang1,*, Toshio Suzuki2, and Akito Arima1,3
1RI-beam Factory Project Office, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
2Department of Physics, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156-8550, Japan
3House of Councillors, Nagata-cho 2-1-1, Chiyoda-ku, Tokyo 100-8962, Japan

Received 26 November 2000; revised 25 April 2001; published 5 July 2001

The phonon damping model is extended to describe the damping of charge-exchange resonances. The formalism is applied to calculate the strength distribution of the Gamow-Teller resonance in 90Nb. The results obtained are found to be in reasonable agreement with recent experimental data and with those of a previous study with explicit microscopic coupling to 2p2h configurations using a realistic interaction.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.64.027303
DOI:
10.1103/PhysRevC.64.027303
PACS:
24.30.Cz, 25.40.Kv, 27.60.+j

*On leave of absence from the Institute of Nuclear Science and Technique, VAEC, Hanoi, Vietnam. Electronic address: dang@rikaxp.riken.go.jp

 
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