Comment on “Classical description ofH(1s)andH*(n=2)for cross-secti

Abstract

Cariatore et al. [Phys. Rev. A 91, 042709 (2015)] have introduced a modification of the classical trajectory Monte Carlo (CTMC) method, specially conceived to provide an accurate representation of charge-exchange processes between highly charged ions and H(1s), H * (n = 2). We point out that this new CTMC treatment is based on nonstable initial distributions for H * (n = 2) targets and an improper description of the H(1s) target.

Application of a grid numerical method to calculate state-selective cross sections for electron capture inBe4++H(1s)collisions

“…[32] is not stable and cannot be applied for excited states. The results of applying this distribution for collisions of multicharged ions with H(1s) have been compared with previous results in both the Comment [33] and the Reply [34], where it was found that at energies E ≈ 100 keV/u the distribution of Ref. [32] leads to EC partial cross sections practically identical to those calculated with the microcanonical distribution.…”

“…More recently, an alternative distribution has been proposed by Cariatore et al [32]. It has been shown [33] that the distribution of Ref. [32] is not stable and cannot be applied for excited states.…”

Reply to “Comment on ‘Classical description ofH(1s)andH*(n=2)Cariatore1, Otranto2, Olson3 2016Phys. Rev. A3020View full textAdd to dashboardCite

“…In their comment, Jorge et al [5] criticize our methodology along two main lines: (i) our initialization procedure for H * (n = 2), and (ii) they recall that the hydrogenic-Z-CTMC model is not physically correct even for H(1s) and should not be used at all. In what follows we will address these two issues.…”