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Production cross section and decay study of Es243 and Md249

R. Briselet, Ch. Theisen, M. Vandebrouck, A. Marchix, M. Airiau, K. Auranen, H. Badran, D. Boilley, T. Calverley, D. Cox, F. Déchery, F. Defranchi Bisso (+33 others)
2019 Physical Review C  

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2018 pre-print arXiv:1809.10400v2 fatcat:gosnhjqhajdobgmpfw3wkbskyi

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2018 pre-print
arXiv:1809.10400v1 fatcat:4iszpgbh6fc6rkwi32lglmvoji
2019 accepted
arXiv:1809.10400v3 fatcat:kyj2gozfqvfsrgwxeopxlhuyzi
In the study of the odd-Z, even-N nuclei ^243Es and ^249Md, performed at the University of Jyväskylä, the fusion-evaporation reactions ^197Au(^48Ca,2n)^243Es and ^203Tl(^48Ca,2n)^249Md have been used for the first time. Fusion-evaporation residues were selected and detected using the RITU gas-filled separator coupled with the focal-plane spectrometer GREAT. For ^243Es, the recoil decay correlation analysis yielded a half-life of 24 ± 3s, and a maximum production cross section of 37 ± 10 nb. In
more » ... he same way, a half-life of 26 ± 1 s, an α branching ratio of 75 ± 5 ± 80 nb were determined for ^249Md. The decay properties of ^245Es, the daughter of ^249Md, were also measured: an α branching ratio of 54 ± 7 compared to the results of calculations performed using the KEWPIE2 statistical fusion-evaporation code.
doi:10.1103/physrevc.99.024614 fatcat:ymjprxdgubba5i7f62amh6bi6y
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Citation

R. Briselet, Ch. Theisen, M. Vandebrouck, A. Marchix, M. Airiau, K. Auranen, H. Badran, D. Boilley, T. Calverley, D. Cox, F. Déchery, F. Defranchi Bisso, A. Drouart, B. Gall, T. Goigoux, T. Grahn, P. T. Greenlees, K. Hauschild, A. Herzan, R. D. Herzberg, U. Jakobsson, R. Julin, S. Juutinen, J. Konki, M. Leino, A. Lightfoot, A. Lopez-Martens, A. Mistry, P. Nieminen, J. Pakarinen, P. Papadakis, J. Partanen, P. Peura, P. Rahkila, J. Rubert, P. Ruotsalainen, M. Sandzelius, J. Saren, C. Scholey, J. Sorri, S. Stolze, B. Sulignano, J. Uusitalo, A. Ward, M. Zielińska. "Production cross section and decay study of Es243 and Md249." Physical Review C 99.2 (2019)