Archivio Istituzionale della RicercaAntineutron annihilation cross sections on C, Al, Cu, Ag, Sn and Pb targets were measured in the momentum range 50–400 MeV/c. The full set of data is very well described by a parameterization in which the target mass number and momentum dependence are factorized. The A dependence is, within 2%, consistent with a A2/3 scaling law, indicating a pure surface process. The momentum dependence is, within 20%, consistent with that expected from a properly averaged contribution of the elementary cross section for and annihilation, indicating that the process is due to the interaction with single nucleons on the surface.
Antineutron-nucleus annihilation cross sections below 400 MeV/c / M., A., E., B., T., B., D., C., C., C., A., F., A., F., S., M., Agnello, M., Iazzi, F.. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - 697:1-2(2002), pp. 209-224. [10.1016/S0375-9474(01)01252-]
Antineutron-nucleus annihilation cross sections below 400 MeV/c
AGNELLO, MICHELANGELO;IAZZI, Felice
2002
Abstract
Antineutron annihilation cross sections on C, Al, Cu, Ag, Sn and Pb targets were measured in the momentum range 50–400 MeV/c. The full set of data is very well described by a parameterization in which the target mass number and momentum dependence are factorized. The A dependence is, within 2%, consistent with a A2/3 scaling law, indicating a pure surface process. The momentum dependence is, within 20%, consistent with that expected from a properly averaged contribution of the elementary cross section for and annihilation, indicating that the process is due to the interaction with single nucleons on the surface.
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https://hdl.handle.net/11583/1845786
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