Total cross sections for the dissociative recombination of H₃⁺, HD₂⁺and D₃⁺

Angular and velocity distributions of theHD+andD2+Álvarez1, Martnez2, Cisneros3 et al. 1992Phys. Rev. A7110View full textAdd to dashboardCite

“…The determinations [5] of the energy distribution of the fragments in the center-of-mass frame of reference and of their angular spread in the laboratory frame (LF) are correlated. This allows an estimation of the binding energy of the molecular projectile, and also the association of some of the prominent structures to the related transitions conducting the excited molecular ion to the dissociation pathways.…”

“…As examples of the great relevance for their study one can mention (i) the chemistry of dense molecular clouds in interstellar space [1,2], (ii) the heating or cooling of the clouds, (iii) in astrophysics, a knowledge of their vibrational and rotational spectra is very important [3,4], and (iv) in ionized plasmas, a knowledge of their dissociative recombination is fundamental [5]. HD2+ has been the least-studied ion of the hydrogenic family.…”

“…To our knowledge, work has been focused in the following areas: in collision physics [6,7], the cross sections for the production of positive and negative ions, in the energy range of 40 to 600 keV, have been measured in several target gases as well as the Balmer lines H& and D& produced using the beam-foil technique [8]. Total cross sections for the dissociative-recombination process were measured by Mitchell et al [5] who found them to be different for H3+ and D3+. In the field of spectroscopy, Carrington and Kennedy [9] noticed that for identical frequency ranges the infrared predissociation spectra of HDz+ determined by monitoring either H+ or D+ fragment ions were different.…”

Binary and ternary recombination of ${\rm D}_3^+$D3+ ions at 80–130 K: Application of laser absorption spectroscopy

“…21 Moreover, recombination studies of H 2 D + and HD + 2 ions are very rare. [22][23][24][25] Only in the early 2000s the modern theory of binary dissociative recombination (DR) of these ions was formulated. [24][25][26][27][28] Agreement between this theory and experiments achieved in the late 1990s and in the years 2000-2003 was only partial.…”

“…Only few studies were made using afterglow experiments 9,10,12,14,15 and storage ring experiments. 13,19 There are few storage ring experiments 22 and no afterglow experiments with H 2 D + and HD + 2 . Usable, near infrared (NIR) absorption frequencies are known 47,48 and we have made spectroscopic investigation of plasma containing a mixture of these ions.…”