New Generation of Experiments for the Investigation of  Stellar (p,γ) Reaction Rates Using SAMURAI

V. Panin; K. Yoneda; M. Kurokawa; J. Blackmon; Z. Elekes; D. Kim; T. Motobayashi; H. Otsu; B. C. Rasco; A. Saastamoinen; L. Sobotka; L. Trache; T. Uesaka

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New Generation of Experiments for the Investigation of Stellar (p,γ) Reaction Rates Using SAMURAI

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The future experimental campaign with the SAMURAI setup at RIKEN will explore a wide range of neutron-deficient nuclei with a particular focus on the most critical(p, γ) reaction rates relevant to the astrophysical rp-process in type-I X-ray bursts(XRB). Intense radioactive-ion(RI) beams at an energy of a few hundred Me V/nucleon will be deployed to populate proton-unbound states in the nuclei of interest through the Coulomb excitation or nucleon-removal processes. The decay of these states into a proton and a heavy residue will be measured using complete kinematics and the information about time reversal proton-capture process will be obtained. This method will provide the vital experimental data on the resonances, which dominate the stellar(p, γ) reaction rates, as well as on the direct proton-capture process for some other cases. The experimental setup will utilize for the first time the High-Resolution90?-mode of the SAMURAI spectrometer in combination with the existing detection systems, including custom-designed Si-strip detectors for simultaneous detection and tracking of heavy ions and protons emitted from the target. The details of the experimental method and the utilized apparatus are discussed in this paper.

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《原子核物理评论》 |2016年第2期|146-151|共6页
作者
V. Panin; K. Yoneda; M. Kurokawa; J. Blackmon; Z. Elekes; D. Kim; T. Motobayashi; H. Otsu; B. C. Rasco; A. Saastamoinen; L. Sobotka; L. Trache; T. Uesaka;
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作者单位

RIKEN Nishina Center;

2-1 Hirosawa;

Wako;

Saitama 351-0198;

Japan;

Louisiana State University;

211-A Nicholson Hal;

Tower Dr.;

Baton Rouge;

LA 708030-4001;

USA;

MTA Atomki;

Bern tdr 18/c H-4026 Debrecen;

Hungary;

Ewha Womans University;

Seoul;

South Korea;

Texas A&M University;

USA;

Department of Chemistry;

Washington University;

Saint Louis;

MO;

63130;

USA;

IFIN-HH;

str. Reactorului 30;

Bucharest-Magurele R0-77125;

Romania;

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原文格式 PDF
正文语种 chi
中图分类重离子核物理;
关键词
type-I X-ray burst; rp-process; (p; γ) reaction rate; neutron-deficient RI beam;

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New Generation of Experiments for the Investigation of Stellar (p,γ) Reaction Rates Using SAMURAI

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