Abstract
The differential cross section for the interaction of 7Be nuclei with protons was measured in the momentum-transfer region extending up to a value of 0.5 GeV/c at which 7Be decay to 3He and 4He fragments was not accompanied by the emergence of other charged particles. In the momentum-transfer region extending up to about 100 MeV/c, the cross section is strongly suppressed in just the same way as in the case of the dissociation of 7Li nuclei on a proton target through the 3H+4He channel. The total reaction cross section is 10 ± 4 mb. The mean transverse-momentum transfer in observed events is 233 ± 6 MeV/c, the dispersion of its distribution being about 63 MeV/c. The interactions in question were detected in photoemulsion irradiated with 7Be nuclei originating from a charge-exchange process involving 7Li nuclei accelerated to the momentum of 1.7 GeV/c per nucleon at the nuclotron of the Joint Institute for Nuclear Research (Dubna).
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Original Russian Text © Yu.A. Alexandrov, N.G. Peresadko, S.G. Gerasimov, V.A. Dronov, A.V. Pisetskaya, V.N. Fetisov, S.P. Kharlamov, L.N. Shesterkina, 2015, published in Yadernaya Fizika, 2015, Vol. 78, No. 5, pp. 393–398.
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Alexandrov, Y.A., Peresadko, N.G., Gerasimov, S.G. et al. Dissociation of relativistic 7Be nuclei through the 3He+4He channel on a proton target. Phys. Atom. Nuclei 78, 363–368 (2015). https://doi.org/10.1134/S1063778815020052
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DOI: https://doi.org/10.1134/S1063778815020052