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Electron screening effects on a-decay

Musumarra, A, Farinon, F, Nociforo, C, Geissel, H, Baur, G, Behr, K-H, Bonasera, A, Bosch, F, Boutin, D, Brünle, A, Chen, L, Del Zoppo, A, Dimopoulou, C, Di Pietro, A, Faestermann, T, Figuera, P, Hagino, K, Janik, R, Karagiannis, C, Kienle, P, Kimura, S, Knöbel, R, Kojouharov, I, Kozhuharov, C, Kuboki, T, Kurcewicz, J, Kurz, N, Langanke, K, Lattuada, M, Litvinov, SA, Litvinov, YA, Martinez-Pinedo, G, Mazzocco, M, Montes, F, Motizuki, Y, Nolden, F, Ohtsubo, T, Okuma, Y, Patyk, Z, Pellegritf, MG, Pla, W, Pietri, S, Podolyak, Z, Prochazka, A, Scheidenberger, C, Scuderf, V, Sitar, B, Steck, M, Strmen, P, Sun, B, Suzuki, T, Szarka, I, Torresi, D, Weick, H, Winfield, JS, Winkler, M, Wollersheim, HJ and Yamaguchi, T (2009) Electron screening effects on a-decay In: NUCLEAR STRUCTURE AND DYNAMICS ’09, 2009-05-04 - 2009-05-08, Dubrovnik, Croatia.

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Abstract

An open problem in Nuclear Astrophysics concerns the understanding of electron‐screening effects on nuclear reaction rates at stellar energies. In this framework, we have proposed to investigate the influence of the electron cloud on α‐decay by measuring Q‐values and α‐decay half‐lives of fully stripped, H‐like and He‐like ions. These kinds of measurements have been feasible just recently for highly‐charged radioactive nuclides by fragmentation of 238U at relativistic energies at the FRS‐ESR facility at GSI. In this way it is possible to produce, efficiently separate and store highly‐charged α‐emitters. Candidates for the proposed investigation were carefully selected and will be studied by using the Schottky Mass Spectroscopy technique. In order to establish a solid reference data set, lifetimes and Qα‐value measurements of the corresponding neutrals have been performed directly at the FRS, by implanting the separated ions into an active Silicon stopper.

Item Type: Conference or Workshop Item (Paper)
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmail
Musumarra, AUNSPECIFIED
Farinon, FUNSPECIFIED
Nociforo, CUNSPECIFIED
Geissel, HUNSPECIFIED
Baur, GUNSPECIFIED
Behr, K-HUNSPECIFIED
Bonasera, AUNSPECIFIED
Bosch, FUNSPECIFIED
Boutin, DUNSPECIFIED
Brünle, AUNSPECIFIED
Chen, LUNSPECIFIED
Del Zoppo, AUNSPECIFIED
Dimopoulou, CUNSPECIFIED
Di Pietro, AUNSPECIFIED
Faestermann, TUNSPECIFIED
Figuera, PUNSPECIFIED
Hagino, KUNSPECIFIED
Janik, RUNSPECIFIED
Karagiannis, CUNSPECIFIED
Kienle, PUNSPECIFIED
Kimura, SUNSPECIFIED
Knöbel, RUNSPECIFIED
Kojouharov, IUNSPECIFIED
Kozhuharov, CUNSPECIFIED
Kuboki, TUNSPECIFIED
Kurcewicz, JUNSPECIFIED
Kurz, NUNSPECIFIED
Langanke, KUNSPECIFIED
Lattuada, MUNSPECIFIED
Litvinov, SAUNSPECIFIED
Litvinov, YAUNSPECIFIED
Martinez-Pinedo, GUNSPECIFIED
Mazzocco, MUNSPECIFIED
Montes, FUNSPECIFIED
Motizuki, YUNSPECIFIED
Nolden, FUNSPECIFIED
Ohtsubo, TUNSPECIFIED
Okuma, YUNSPECIFIED
Patyk, ZUNSPECIFIED
Pellegritf, MGUNSPECIFIED
Pla, WUNSPECIFIED
Pietri, SUNSPECIFIED
Podolyak, ZUNSPECIFIED
Prochazka, AUNSPECIFIED
Scheidenberger, CUNSPECIFIED
Scuderf, VUNSPECIFIED
Sitar, BUNSPECIFIED
Steck, MUNSPECIFIED
Strmen, PUNSPECIFIED
Sun, BUNSPECIFIED
Suzuki, TUNSPECIFIED
Szarka, IUNSPECIFIED
Torresi, DUNSPECIFIED
Weick, HUNSPECIFIED
Winfield, JSUNSPECIFIED
Winkler, MUNSPECIFIED
Wollersheim, HJUNSPECIFIED
Yamaguchi, TUNSPECIFIED
Date : 2009
Identification Number : 10.1063/1.3232139
Additional Information : Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in AIP Conference Proceedings 1165, and may be found at http://proceedings.aip.org/resource/2/apcpcs/1165/1/415_1
Depositing User : Symplectic Elements
Date Deposited : 26 Oct 2012 10:34
Last Modified : 23 Sep 2013 19:42
URI: http://epubs.surrey.ac.uk/id/eprint/727975

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