Coulomb glory effect in collisions of antiprotons with heavy nuclei: relativistic theory
نویسندگان
چکیده
New facilities for antiproton and ion research at GSI will give a unique possibility to observe the Coulomb glory phenomenon predicted by Demkov and coauthors [1, 2]. The effect consists in a prominent maximum of the differential cross section (DCS) in the backward direction at a certain energy of the incident particle, provided the interaction with the target is represented by a screened Coulomb attraction potential. In our previous papers [3,4] we investigated this effect for the antiproton scattering in the framework of the non-relativistic quantum mechanics. It was shown that in collisions of antiprotons with the bare uranium the Coulomb glory is present because of the screening properties of the vacuum polarization (VP) potential. In Ref. [5] we consider collisions of antiprotons with bare uranium nuclei (Z = 92) in the framework of the relativistic quantum theory in the range of the antiproton kinetic energy 100 eV to 2.5 keV. To compare the results at different energies, we define the scaled DCS which is being measured in the units of the Rutherford cross section in the backward direction:
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Backward scattering of low-energy antiprotons by highly charged and neutral uranium: Coulomb glory
Investigations of the antiproton scattering by heavy ions at low energies anticipated in the near future with the new GSI facilities can give a unique possibility to observe an interesting phenomenon predicted in Refs. [1, 2] and named the Coulomb glory. The phenomenon consists in a prominent maximum of the differential cross section (DCS) in the backward direction at a certain energy of the in...
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