The Coulomb glory effect in collisions of antiprotons with heavy nuclei: relativistic theory

We investigate the parity nonconservation effect in the elastic scattering of polarized electrons on heavy He-like ions, being initially in the ground state. The enhancement of the parity violation is achieved by tuning the energy of the incident electron in resonance with quasidegenerate doubly-excited states of the corresponding Li-like ion.We consider two possible scenarios. In the first one we assume that the polarization of the scattered electron is measured, while in the second one it is not detected.

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“…The deviation of the scattering potential from the Coulomb one is accounted for using the method described in Ref. [25].…”

Section: Basic Formalismmentioning

confidence: 99%

Parity nonconservation effect in the resonance elastic electron scattering on heavy He-like ions

Zaytsev

Tashenov

Майорова

et al. 2015

J. Phys. B: At. Mol. Opt. Phys.

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“…In [79][80][81] the Coulomb glory was examined in collisions of antiprotons with He-, Ne-, Ni-like, bare, and neutral uranium (Z = 92). The ions were chosen to have fully occupied shells with n = 1 (U 90+ ), n = 2 (U 82+ ), and n = 3 (U 64+ ).…”

Section: Low-energy Collisions Of Antiprotons With Heavy Ionsmentioning

confidence: 99%

Tests of fundamental theories with heavy ions at low-energy regime

et al. 2011

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The current status of theoretical investigations of spectroscopic properties and fundamental interactions in highly charged ions is reviewed. Laying special attention on tests of quantum electrodynamics at strong fields recent progress in calculations of energy levels, hyperfine splitting and g factor values is reported. The parity nonconservation effect on the laser-induced 2 3 S 1 − 2 1 S 0 transition in heavy He-like ions is studied, which could serve as test scenario for the Standard Model in low-energy atomic physics. The Coulomb glory effect in collisions of antiprotons with heavy ions is considered. It is emphasized that observation of this effect in collisions of antiprotons with bare nuclei would exhibit the screening properties of the vacuum polarization potential. A new approach to the description of dynamic atomic processes in low-energy heavy-ion collisions is presented. As a first application of this approach, the charge transfer probabilities for the U 91+ (1s) -U 92+ collision are evaluated.

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“…In our preceding works [3][4][5], we studied the Cou lomb glory effect in antiproton back scattering from uranium ions in terms of both nonrelativistic and rela tivistic quantum theory. In this work, we present the most interesting results obtained in our studies.…”

mentioning

confidence: 99%

“…In this work, we present the most interesting results obtained in our studies. As in [3][4][5], we use the atomic system of units m e = e = ћ = 1.…”

mentioning

confidence: 99%

“…The short range potential part is determined as where Z c is the nucleus charge screened by electron shells (for instance, for scattering from the bare ura nium nucleus, Z c = 92, for scattering from helium like uranium, Z c = 90, etc.). Antiproton scattering from the bare uranium nucleus was studied in [5] taking into account the exact one loop vacuum polarization potential in terms of relativistic quantum theory. Although the ratio between the velocity of incident antiprotons and the velocity of light, /c, is fairly small (~10 -3 ), the con tribution of relativistic effects to the differential cross section of back scattering is very substantial.…”

mentioning

confidence: 99%

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The coulomb glory effect in collisions of antiprotons with heavy ions

Майорова

Telnov

Shabaev

et al. 2012

Russ. J. Phys. Chem. B

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The Coulomb glory effect in the back scattering of antiprotons with energies of from 100 eV to 3 keV from a bare nucleus of uranium and from uranium ions with closed shells is considered in terms of non relativistic and relativistic quantum theory. The appearance of Coulomb glory in collisions with multiply charged ions is caused by nucleus charge screening by filled electron shells. In scattering from a bare nucleus, the effect appears because of the screening properties of the vacuum polarization potential.

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The Coulomb glory effect in collisions of antiprotons with heavy nuclei: relativistic theory

Cited by 7 publications

References 26 publications

Parity nonconservation effect in the resonance elastic electron scattering on heavy He-like ions

Parity nonconservation effect in the resonance elastic electron scattering on heavy He-like ions

Tests of fundamental theories with heavy ions at low-energy regime

The coulomb glory effect in collisions of antiprotons with heavy ions

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