Fine structure of the Gamow-Teller resonance in Nb90 and level density of 1+ states

Y. Kalmykov, T. Adachi, G. P.A. Berg, H. Fujita, K. Fujita, Y. Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, P. Von Neumann-Cosel, V. Yu Ponomarev, A. Richter, N. Sakamoto, Y. Sakemi, A. Shevchenko, Y. Shimbara, Y. Shimizu, F. D. Smit, T. Wakasa, J. WambachM. Yosoi

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Abstract

The fine structure of the Gamow-Teller resonance in a medium-heavy nucleus is observed for the first time in a high-resolution Zr90(He3,t)Nb90 experiment at the Research Center for Nuclear Physics, Osaka. Using a novel wavelet analysis technique, it is possible to extract characteristic energy scales and to quantify their relative importance for the generation of the fine structure. This method combined with the selectivity of the reaction permits an extraction of the level density of 1+ states in Nb90.

Original languageEnglish
Article number012502
JournalPhysical Review Letters
Volume96
Issue number1
DOIs
Publication statusPublished - Jan 13 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Kalmykov, Y., Adachi, T., Berg, G. P. A., Fujita, H., Fujita, K., Fujita, Y., Hatanaka, K., Kamiya, J., Nakanishi, K., Von Neumann-Cosel, P., Ponomarev, V. Y., Richter, A., Sakamoto, N., Sakemi, Y., Shevchenko, A., Shimbara, Y., Shimizu, Y., Smit, F. D., Wakasa, T., ... Yosoi, M. (2006). Fine structure of the Gamow-Teller resonance in Nb90 and level density of 1+ states. Physical Review Letters, 96(1), [012502]. https://doi.org/10.1103/PhysRevLett.96.012502