Fully differential cross sections for $\bar{p}$ + H collisions

POSTER

Abstract

We present fully differential cross sections (FDCS) for the single ionization of hydrogen atoms by antiprotons~[1]. We use a time-dependent close-coupling approach to model the evolution of the electron wavefunction in the field of the incoming projectile for a range of impact parameters and for different impact energies~[2]. In addition, a Fourier transform approach is used to extract FDCS for a specific projectile momentum transfer value~[3]. This scheme allows us to incorporate information about the interaction of the two heavy nuclei (the so-called NN interaction) and to assess its influence in the FDCS. We compare our approach with convergent close coupling methods~[4].\\[4pt] [1] M.\ F.\ Ciappina, et al., J. Phys. B (in preparation) (2013). \newline [2] T.\ G.\ Lee, et al., J. Phys. B {\bf 45}, 045203 (2012). \newline [3] J.\ Colgan, et al., J. Phys. B {\bf 44}, 175205 (2011). \newline [4] I.\ Abdurakhmanov, et al. J. Phys. B {\bf 44}, 165203 (2011).

Authors

  • T.G. Lee

    Physics Department, Auburn University, Auburn, AL 36849, USA

  • M.F. Ciappina

    Physics Department, Auburn University, Auburn, AL 36849, USA, Auburn University, Auburn, AL

  • M.S. Pindzola

    Physics Department, Auburn University, Auburn, AL 36849, USA, Auburn University, Auburn, AL

  • James Colgan

    Theoretical Division, Los Alamos National Laboratory, Los Almos, NW 87545, USA, Theoretical Division, Los Alamos National Laboratory, Los Alamos National Laboratory