First Experimental Constraint on the 59Fe(n, γ)60Fe Reaction Cross Section at Astrophysical Energies via the Coulomb Dissociation of 60Fe

被引：18

作者：

Uberseder, E. ^{[1
]}

Adachi, T. ^{[2
]}

Aumann, T. ^{[3
,4
]}

Beceiro-Novo, S. ^{[5
]}

Boretzky, K. ^{[4
]}

Caesar, C. ^{[3
]}

Dillmann, I. ^{[4
]}

Ershova, O. ^{[6
]}

Estrade, A. ^{[4
,7
]}

Farinon, F. ^{[4
]}

Hagdahl, J. ^{[8
]}

Heftrich, T. ^{[6
]}

Heil, M. ^{[4
]}

Heine, M. ^{[3
]}

Holl, M. ^{[3
]}

Ignatov, A. ^{[3
]}

Johansson, H. T. ^{[8
]}

Kalantar, N.

Langer, C. ^{[6
]}

Le Bleis, T. ^{[9
]}

Litvinov, Yu. A. ^{[4
]}

Marganiec, J. ^{[10
]}

Movsesyan, A. ^{[3
]}

Najafi, M. A. ^{[2
]}

Nilsson, T. ^{[8
]}

Nociforo, C. ^{[4
]}

Panin, V. ^{[3
]}

Pietri, S. ^{[4
]}

Plag, R. ^{[6
]}

Prochazka, A. ^{[4
]}

Rastrepina, G. ^{[4
]}

Reifarth, R. ^{[6
]}

Ricciardi, V. ^{[4
]}

Rigollet, C. ^{[2
]}

Rossi, D. M. ^{[4
]}

Savran, D. ^{[10
,11
]}

Simon, H. ^{[4
]}

Sonnabend, K. ^{[6
]}

Streicher, B. ^{[2
]}

Terashima, S. ^{[4
]}

Thies, R. ^{[8
]}

Togano, Y. ^{[12
]}

Volkov, V. ^{[3
]}

Wamers, F. ^{[3
,4
]}

Weick, H. ^{[4
]}

Weigand, M. ^{[6
]}

Wiescher, M. ^{[1
]}

Wimmer, C. ^{[6
]}

Winckler, N. ^{[4
]}

Woods, P. J. ^{[13
]}

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands

[3] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[4] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[5] Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela 15706, Spain

[6] Goethe Univ Frankfurt, D-60438 Frankfurt, Germany

[7] St Marys Univ, Dept Phys & Astron, Halifax, NS B3H 3C3, Canada

[8] Chalmers Tekniska Hogskola, S-41296 Gothenburg, Sweden

[9] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany

[10] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany

[11] Frankfurt Inst Adv Studies FIAS, D-60438 Frankfurt, Germany

[12] RIKEN Nishina Ctr, Saitama 3510198, Japan

[13] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 21期

基金：

美国国家科学基金会;

关键词：

RESONANCE NEUTRON-CAPTURE; CORE-COLLAPSE SUPERNOVAE; RELATIVISTIC HEAVY-IONS; RAY LINE EMISSION; STRENGTH FUNCTIONS; MODEL-CALCULATIONS; MASSIVE STARS; SOLAR METALLICITY; NUCLEAR; AL-26;

D O I：

10.1103/PhysRevLett.112.211101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The radionuclide Fe-60 has been of great interest to the nuclear astrophysics community for over a decade. An initial discrepancy between the observed and modeled Galactic Fe-60/Al-26 ratio motivated numerous studies focused on the nucleosynthesis of these two isotopes, though the cross section of the primary astrophysical production reaction, Fe-59(n,gamma)Fe-60, has remained purely theoretical. The present work offers a first experimental constraint on the Fe-59(n,gamma)Fe-60 cross section at astrophysical energies, obtained indirectly via Coulomb dissociation, and demonstrates that the theoretical reaction rates used in present stellar models are not highly erroneous.

引用

页数：6

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