Charge transfer in collisions ofC2+ions with H atoms at low-keV energies: A possible bound state ofCH

Fragmentation ofCD+induced by intense ultrashort laser pulses

“…7). Several authors have reported a strong state which correlates to the C 2+ + D dissociation limit (green tic mark) [75]. The measured KER spread is marked by the horizontal red dotted lines, where the middle line signifies the average KER.…”

“…However, there are discrepancies about the exact internuclear distance R c at which this occurs. Most recently, Gu et al [75] reported an avoided crossing at R c = 19.4 a.u., which is by comparison considerably larger than for CAD channels studied in other molecules, such as N 2 , I 2 , and CO [32,34,68]. Provided the coupling is strong enough, CAD dissociation channels can be populated or depopulated through charge-transfer transitions near these crossings.…”

“…As a result, such information is scarce. Fortunately, ab initio calculations of the relevant states of CD 2+ exist, and the adiabatic PECs computed by Gu et al [75] are shown in Fig. 7.…”

“…avoided crossing between the 2 2 + and 3 2 + states of CD 2+ [75][76][77]. However, there are discrepancies about the exact internuclear distance R c at which this occurs.…”

“…8. These spectra were measured for 22-fs, 798-nm pulses at a peak intensity of 6. states, caused by radial and rotational coupling [78] inherent to CD 2+ [75], can cause charge transfer even without the presence of the laser field. This adds to the complexity of determining the explicit dissociation route, especially if the laser pulse is long enough in comparison to the propagation time to the curve crossing by the dissociating wave packet.…”