K-shell ionization by antiprotons

  • We present calculations for the impact-parameter dependence of K-shell ionization rates in p¯-Cu and in p¯-Ag collisions at various projectile energies. We show that the effect of the attractive Coulomb potential on the Rutherford trajectory and the antibinding effect caused by the negative charge of the antiproton result in a considerable increase of the ionization probability. Total ionization cross sections for proton and antiproton projectiles are compared with each other and with experimental ionization cross sections for protons.

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Metadaten
Author:Gerhard Mehler, Berndt MüllerORCiDGND, Walter GreinerGND, Gerhard SoffGND
URN:urn:nbn:de:hebis:30-29634
Parent Title (German):Physical review A
Document Type:Article
Language:English
Date of Publication (online):2006/07/07
Year of first Publication:1987
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/07
Volume:36
Issue:5
Page Number:4
First Page:1454
Last Page:1457
HeBIS-PPN:187375593
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:30.00.00 ATOMIC AND MOLECULAR PHYSICS / 32.00.00 Atomic properties and interactions with photons (for quantum chaos, see 05.45.Mt; for standards of calibration, see 06.20.fb; for relativistic and quantum electrodynamic effects, see 31.30.J-) / 32.30.-r Atomic spectra (see also 78.47.J- Ultrafast pump/probe spectroscopy in condensed matter and 82.53.Kp Coherent spectroscopy of atoms and molecules in physical chemistry and chemical physics) / 32.30.Rj X-ray spectra
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 32.00.00 Atomic properties and interactions with photons (for quantum chaos, see 05.45.Mt; for standards of calibration, see 06.20.fb; for relativistic and quantum electrodynamic effects, see 31.30.J-) / 32.80.-t Photoionization and excitation / 32.80.Hd Auger effect (including Coster-Kronig transitions); Mechanical effects of light on atoms, molecules, and ions, see 37.10.Vz; Atom cooling methods, traps and guides, see 37.10.De and 37.10.Gh; Atoms in optical lattices, see 37.10.Jk
30.00.00 ATOMIC AND MOLECULAR PHYSICS / 34.00.00 Atomic and molecular collision processes and interactions (for atomic, molecular, and ionic collisions in plasma, see 52.20.Hv; for atoms and molecules of astrophysical interest, see 95.30.Dr, Ft; see also 98.38.Bn and 98.58.Bz in interstellar media in as / 34.50.-s Scattering of atoms and molecules / 34.50.Fa Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)
Licence (German):License LogoDeutsches Urheberrecht

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