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Gamow-Teller Strengths in the A=14 Multiplet: A Challenge to the Shell Model

Negret, A. ; Adachi, T. ; Barrett, B. ; Bäumer, C. ; Berg, A. M. van den ; Berg, G. ; von Brentano, P. ; Frekers, D. ; De Frenne, D. ; Fujita, H. ; Fujita, K. ; Fujita, Y. ; Grewe, E.-W. ; Haefner, P. ; Harakeh, M. ; Hatanaka, K. ; Heyde, K. ; Hunyadi, M. ; Jacobs, E. ; Kalmykov, Y. ; Korff, A. ; Nakanishi, K. ; Navrátil, P. ; von Neumann-Cosel, P. ; Popescu, L. ; Rakers, S. ; Richter, A. ; Ryezayeva, N. ; Sakemi, Y. ; Shevchenko, A. ; Shimbara, Y. ; Shimizu, Y. ; Tameshige, Y. ; Tamii, A. ; Uchida, M. ; Vary, J. ; Wörtche, H. ; Yosoi, M. ; Zamick, L. (2006):
Gamow-Teller Strengths in the A=14 Multiplet: A Challenge to the Shell Model.
In: Physical Review Letters, 97 (6), pp. 062502. APS, ISSN 0031-9007,
[Article]

Item Type: Article
Erschienen: 2006
Creators: Negret, A. ; Adachi, T. ; Barrett, B. ; Bäumer, C. ; Berg, A. M. van den ; Berg, G. ; von Brentano, P. ; Frekers, D. ; De Frenne, D. ; Fujita, H. ; Fujita, K. ; Fujita, Y. ; Grewe, E.-W. ; Haefner, P. ; Harakeh, M. ; Hatanaka, K. ; Heyde, K. ; Hunyadi, M. ; Jacobs, E. ; Kalmykov, Y. ; Korff, A. ; Nakanishi, K. ; Navrátil, P. ; von Neumann-Cosel, P. ; Popescu, L. ; Rakers, S. ; Richter, A. ; Ryezayeva, N. ; Sakemi, Y. ; Shevchenko, A. ; Shimbara, Y. ; Shimizu, Y. ; Tameshige, Y. ; Tamii, A. ; Uchida, M. ; Vary, J. ; Wörtche, H. ; Yosoi, M. ; Zamick, L.
Title: Gamow-Teller Strengths in the A=14 Multiplet: A Challenge to the Shell Model
Language: English
Journal or Publication Title: Physical Review Letters
Journal volume: 97
Number: 6
Publisher: APS
Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > A: Kernstrukturphysik
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > A: Kernstrukturphysik > A2: Kernstrukturphysik mit virtuellen Photonen
Date Deposited: 20 Jun 2011 07:12
Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.062502
Identification Number: doi:10.1103/PhysRevLett.97.062502
Alternative Abstract:
Alternative abstract Language

A new experimental approach to the famous problem of the anomalously slow Gamow-Teller (GT) transitions in the beta decay of the A=14 multiplet is presented. The GT strength distributions to excited states in 14C and 14O were studied in high-resolution (d,2He) and (3He,t) charge-exchange reactions on 14N. No-core shell-model calculations capable of reproducing the suppression of the beta decays predict a selective excitation of Jpi=2+ states. The experimental confirmation represents a validation of the assumptions about the underlying structure of the 14N ground state wave function. However, the fragmentation of the GT strength over three 2+ final states remains a fundamental issue not explained by the present no-core shell model using a 6[h-bar]omega model space, suggesting possibly the need to include cluster structure in these light nuclei in a consistent way.

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