18–23 Jun 2017
Laboratori Nazionali del Sud
Europe/Rome timezone

The thermal neutron capture of $^{171}$Tm

20 Jun 2017, 10:10
20m
Sala conferenze (Laboratori Nazionali del Sud)

Sala conferenze

Laboratori Nazionali del Sud

Via S. Sofia 62 I-95123 Catania Italy

Speaker

Dr Tanja Heftrich (Goethe University Frankfurt)

Description

% % Nuclear Physics in Astrophysics 8 template for abstract % % Format: LaTeX2e. % % Rename this file to name.tex, where `name' is the family name % of the first author, and edit it to produce your abstract. % \documentstyle[11pt]{article} % % PAGE LAYOUT: % \textheight=9.9in \textwidth=6.3in \voffset -0.85in \hoffset -0.35in \topmargin 0.305in \oddsidemargin +0.35in \evensidemargin -0.35in %\renewcommand{\rmdefault}{ptm} % to use Times font \long\def\TITLE#1{{\Large{\bf#1}}}\long\def\AUTHORS#1{ #1\\[3mm]} \long\def\AFFILIATION#1#2{$^{#1}\,$ #2\\} \begin{document} {\small \it Nuclear Physics in Astrophysics 8, NPA8: 18-23 June 2017, Catania, Italy} \vspace{12pt} \thispagestyle{empty} \begin{center} %%% %%% Title goes here. %%% \TITLE{The thermal neutron capture of $^{171}$Tm}\\[3mm] %%% %%% Authors and affiliations are next. The presenter should be %%% underlined as shown below. %%% \AUTHORS{T. Heftrich$^{1}$, R. Dressler$^{2}$, K. Eberhardt$^{3}$, J. Glorius$^{1}$, C. Guerrero$^{4}$, S. Heinitz$^{2}$, U. K{\"o}ster$^{5}$, J. Kaiser$^{1}$, F. Ludwig$^{1}$, R. Reifarth$^{1}$, K. Scheutwinkel$^{1}$, S. Schmidt$^{1}$, D. Schumann$^{2}$, M. Weigand$^{1}$, N. Wiehl$^{3}$, } %%% {\small \it \AFFILIATION{1}{Goethe University Frankfurt, Germany} \AFFILIATION{2}{Paul-Scherer-Insitut Villingen, Switzerland} \AFFILIATION{3}{University of Mainz, Germany} \AFFILIATION{4}{Universidad de Sevilla, Spain} \AFFILIATION{5}{Institut Laue-Langevin, Grenoble, France} } %%% \vspace{12pt} % Do not modify % Enter contact e-mail address here. \centerline{Contact email: {\it t.heftrich@gsi.de}} \vspace{18pt} % Do not modify \end{center} %%% %%% Abstract proper starts here. %%% About 50\% of the heavy elements are synthesized during the s process. An experimental determination of the involved neutron capture cross sections is highly desired to reproduce the elemental abundances. The neutron capture reactions compete with beta-decays at branching points. If the cross sections are well-determined, the physical conditions of the s-process environment (i.e. neutron fluence, seed abundance, neutron density and temperature) can be identified in nucleosynthesis simulations to fit the measured abundance data. The branchings at mass numbers A = 170/171 depend mostly on the neutron density in low mass AGB stars. Therefore, we measured the neutron capture cross section of 171Tm at thermal energies in an activation experiment at the TRIGA reactor in Mainz, Germany. The experimental setup and the status of the analysis and the impact on the important cross section in the keV-regime will be presented. \bigskip {\small } %%% %%% End of abstract. %%% \end{document}

Primary author

Dr Tanja Heftrich (Goethe University Frankfurt)

Co-authors

Dr Carlos Guerrero (Universidad de Sevilla, Spain) Dr Dorothea Schumann (Paul-Scherer-Insitut Villingen, Switzerland) Florian Ludwig (Goethe University Frankfurt, Germany) Dr Jan Glorius (Goethe University Frankfurt, Germany) Jan Kaiser (Goethe University Frankfurt, Germany) Kilian Scheutwinkel (Goethe University Frankfurt, Germany) Dr Klaus Eberhardt (University of Mainz, Germany) Dr Mario Weigand (Goethe University Frankfurt, Germany) Dr Norbert Wiehl (University of Mainz, Germany) Prof. Rene Reifarth (Goethe University Frankfurt) Dr Rugard Dressler (Paul-Scherer-Insitut Villingen, Switzerland) Dr Stefan Schmidt (Goethe University Frankfurt, Germany) Dr Stephan Heinitz (Paul-Scherer-Insitut Villingen, Switzerland) Dr Ulli Köster (Institut Laue Langevin)

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