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

Negret, A. and Adachi, T. and Barrett, B. and Bäumer, C. and van den Berg, A. and Berg, G. and von Brentano, P. and Frekers, D. and De Frenne, D. and Fujita, H. and Fujita, K. and Fujita, Y. and Grewe, E.-W. and Haefner, P. and Harakeh, M. and Hatanaka, K. and Heyde, K. and Hunyadi, M. and Jacobs, E. and Kalmykov, Y. and Korff, A. and Nakanishi, K. and Navrátil, P. and von Neumann-Cosel, P. and Popescu, L. and Rakers, S. and Richter, A. and Ryezayeva, N. and Sakemi, Y. and Shevchenko, A. and Shimbara, Y. and Shimizu, Y. and Tameshige, Y. and Tamii, A. and Uchida, M. and Vary, J. and Wörtche, H. and Yosoi, M. and Zamick, L. (2006):
Gamow-Teller Strengths in the A=14 Multiplet: A Challenge to the Shell Model.
In: Physical Review Letters, APS, pp. 062502, 97, (6), ISSN 0031-9007, [Online-Edition: http://dx.doi.org/10.1103/PhysRevLett.97.062502],
[Article]

Item Type: Article
Erschienen: 2006
Creators: Negret, A. and Adachi, T. and Barrett, B. and Bäumer, C. and van den Berg, A. and Berg, G. and von Brentano, P. and Frekers, D. and De Frenne, D. and Fujita, H. and Fujita, K. and Fujita, Y. and Grewe, E.-W. and Haefner, P. and Harakeh, M. and Hatanaka, K. and Heyde, K. and Hunyadi, M. and Jacobs, E. and Kalmykov, Y. and Korff, A. and Nakanishi, K. and Navrátil, P. and von Neumann-Cosel, P. and Popescu, L. and Rakers, S. and Richter, A. and Ryezayeva, N. and Sakemi, Y. and Shevchenko, A. and Shimbara, Y. and Shimizu, Y. and Tameshige, Y. and Tamii, A. and Uchida, M. and Vary, J. and Wörtche, H. and Yosoi, M. and 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
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.English
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