Inelastic process observed in charge-exchange reactions of 56Fe at 500 MeV/u
1 Kochi Univ. of Tech., Tosayamada, Kochi 782-8502, Japan
2 Department of Physics, Saitama University, Saitama, 338-8570, Japan
3 Institute of Physics, University of Tsukuba, Ibaragi 305-8571, Japan
4 Department of Physics, Tokyo University of Science, Noda 278-8510, Japan
5 Department of Physics, Osaka University, Toyonaka 560-0043, Japan
6 Department of Physics, Niigata University, Niigata 950-2181, Japan
7 National Institute of Radiological Sciences(NIRS), Chiba 263-8555, Japan
a e-mail: firstname.lastname@example.org
Published online: 20 March 2014
The inelastic (IE) component of the reaction product, which is produced through charge-exchange reactions at relativistic energies of E ~ 1 GeV/u, is one of the hopeful probes used to study the nuclear medium effect on Δ excitation. In the present study, the longitudinal-momentum (PL) distribution of 56Co, produced by bombarding C-and CH2-target with a primary beam of 56Fe at E=500 MeV/u, was observed by means of the spectrometer at HIMAC facility. The IE peak of 56Co, produced from H and C targets, was successfully observed in energy transfer spectrum. The behaviors of the IE peaks are consistent with those observed in previous experiments. A remarkable reduction of the energy transfer for the IE process was also observed with C target compared with H target. The present results have shown the feasibility to investigate the energy transfer in charge-exchange reactions for heavy reaction system at the energy down to 500 MeV/u.
© Owned by the authors, published by EDP Sciences, 2014
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