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Proton removal from B-8, C-9, and C-12 on Si at 20-70 MeV/nucleon

Warner, RE, Becchetti, FD, Brown, JA, Galonsky, A, Kelley, JH, Nadasen, A, Ronningen, RM, Tostevin, JA, Winfield, JS and Zecher, P (2004) Proton removal from B-8, C-9, and C-12 on Si at 20-70 MeV/nucleon PHYSICAL REVIEW C, 69 (2). ? - ?. ISSN 0556-2813

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Abstract

A Si detector telescope, in which alternating thick and thin Si elements served as both targets and detectors, was used to measure the energy dependence of the inclusive one-proton-removal cross sections sigma(1p) of B-8, C-9, and C-12 on a Si target. A similar detector telescope was used to measure both sigma(1p) and sigma(2p) for C-9; sigma(2p) of C-9 is more than twice as large as sigma(1p) of C-9 and almost as large as sigma(1p) of B-8. The measurements were compared with shell model calculations using eikonal reaction theory. The quenching factors R-s (the ratio of the measurement to the theoretical prediction) for B-8 and C-9 were near unity, as at higher energies. They also agreed with those measured recently for those nuclei on a C target at 75 MeV/nucleon. For C-12 the quenching is greater with R-s=0.44 +/- 0.03. This is comparable to the value 0.53 +/- 0.02 deduced at energies above 1 GeV/nucleon.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Nuclear, Physics, REACTION CROSS-SECTIONS, MODIFIED GLAUBER MODEL, HALO NUCLEI, FINITE NUCLEI, BREAKUP, SCATTERING, SEPARATOR, ENERGIES, RADII, NE-17
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Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:05
Last Modified: 23 Sep 2013 18:25
URI: http://epubs.surrey.ac.uk/id/eprint/64

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