Elastic scattering of 8He on 4He and 4 n system

Elastic scattering of a 26A MeV beam of 8 He on a gaseous helium target has been studied. In spite of efforts made for the observation of backward angle enhancement only upper limits could be obtained for the elastic scattering cross section at backward angles. The angular distribution of 8He nuclei...

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Bibliographic Details
Published inNuclear physics. A Vol. 722; pp. C55 - C60
Main Authors Wolski, R., Sidorchuk, S.I., Ter-Akopian, G.M., Fomichev, A.S., Rodin, A.M., Stepantsov, S.V., Mittig, W., Roussel-Chomaz, P., Savajols, H., Alamanos, N., Auger, F., Lapoux, V., Raabe, R., Tchuvil'sky, Yu.M., Rusek, K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2003
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Summary:Elastic scattering of a 26A MeV beam of 8 He on a gaseous helium target has been studied. In spite of efforts made for the observation of backward angle enhancement only upper limits could be obtained for the elastic scattering cross section at backward angles. The angular distribution of 8He nuclei scattered to CM 20°–80° was was analyzed in terms of a phenomenological Optical Model. Possible contributions from transfer reactions were estimated. The DWBA calculations indicate that the two step 2n transfer is more important than the one step 4n transfer. The transfer reaction d( 8He, 6Li)4n is discussed in terms of possible tests of a four-neutron system.
ISSN:0375-9474
DOI:10.1016/S0375-9474(03)01335-6