English

Transfer excitation reactions in fast proton-helium collisions

Atomic Physics 2022-01-26 v2

Abstract

Continuing previous work, we have measured the projectile scattering-angle dependency for transfer excitation of fast protons (300-1200 keV/u) colliding with helium (p+He \rightarrow H + He+^{+ *}). Our high-resolution fully differential data are accompanied by calculations, performed in the plane wave first Born approximation and the eikonal wave Born approximation. Experimentally we find a deep minimum in the differential cross section around 0.5 mradmrad. The comparison with our calculations shows that describing the scattering angle dependence of transfer exitation in fast collisions requires to go beyond the first Born approximation and in addition to use initial state wave function, which contains some degree of angular correlations.

Keywords

Cite

@article{arxiv.1311.5660,
  title  = {Transfer excitation reactions in fast proton-helium collisions},
  author = {M. S. Schöffler and H. -K. Kim and O. Chuluunbaatar and S. Houamer and A. G. Galstyan and J. N. Titze and T. Jahnke and L. Ph. H. Schmidt and H. Schmidt-B"ocking and R. D"orner and Yu. V. Popov and A. A. Bulychev},
  journal= {arXiv preprint arXiv:1311.5660},
  year   = {2022}
}

Comments

published in Phys. Rev. A (2014)