Coulomb dissociation reactions on Mo isotopes for astrophysics applications

Coulomb dissociation reactions on Mo isotopes for astrophysics applications
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天体物理学应用中钼同位素的库仑解离反应

DOI：
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发表时间：
2011
期刊：
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通讯作者：
A. Zilges
A. Zilges
中科院分区：
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文献类型：
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作者：
O. Ershova;P. Adrich;H. Alvarez;F. Aksouh;T. Aumann;M. Babilon;K. Behr;J. Benlliure;T. Berg;M. Boehmer;K. Boretzky;A. Bruenle;R. Beyer;E. Casarejos;M. Chartier;D. Cortina;A. Chatillon;U. D. Pramanik;Lionel Deveaux;M. Elvers;T. Elze;H. Emling;M. Erhard;B. Fernández;H. Geissel;M. Gorska;M. Heil;M. Hellstroem;G. Ickert;H. Johansson;A. Junghans;F. Käppeler;O. Kiselev;A. Klimkiewicz;J. Kratz;R. Kulessa;N. Kurz;M. Labiche;T. Bleis;R. Lemmon;K. Lindenberg;Y. Litvinov;P. Maierbeck;A. Movsesyan;S. Mueller;T. Nilsson;C. Nociforo;N. Paar;R. Palit;S. Paschalis;W. Prokopowicz;R. Reifarth;D. Rossi;L. Schnorrenberger;H. Simon;S. Klaus;G. Surówka;D. Vretenar;A. Wagner;S. Walter;W. Waluś;H. Weick;N. Winckler;M. Winkler;A. Zilges

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光解离反应在p过程核合成中起着重要作用，p过程核合成发生在超新星爆发中。P核同位素丰度的理论计算需要一个连接数千个同位素的庞大反应网络，其中大多数反应速率必须从Hauser-Feshbach统计模型得出。然而，为了为计算提供可靠的参考，尽可能多的速率需要通过实验来确定。测量钼同位素的反应速率对于解释现有的所有p-过程核合成模型中Mo和Ru产量显著不足的问题是重要的。该项目的另一个方面是通过将我们的数据与S-达利纳克(TU Darmstadt)和易北河(FZD)[1]的真实光子实验进行比较，来验证库仑分解方法的准确性。
Photo-dissociation reactions play an important role in p-process nucleosynthesis, which takes place in supernova explosions. Theoretical calculations of isotopic abundances of the p-nuclei require a vast reaction network linking thousands of isotopes, where most of the reaction rates must be derived from the Hauser-Feshbach statistical model. However, as many rates as possible need to be determined experimentally, in order to provide a reliable reference for the calculations. Measuring reaction rates on Mo isotopes is important to explain the problem of the significant underproduction of Mo and Ru in all existing models of p-process nucleosynthesis. Another aspect of the project is to verify the accuracy of the Coulomb dissociation method by comparing our data with experiments performed with real photons at S-DALINAC (TU Darmstadt) and ELBE (FZD) [1].