Final-state-resolved mutual neutralization in I+ - I− collisions

Poline, Mathias; Yuan, Xiang; Badin, Sylvain; Ji, Mingchao; Rosén, Stefan; Indrajith, Suvasthika; Thomas, Richard; Schmidt, Henning; Zettergren, Henning; Severo Pereira Gomes, Andre; Sisourat, Nicolas

Type de document :

Article dans une revue scientifique

DOI :

10.1103/PhysRevA.106.012812

Titre :

Final-state-resolved mutual neutralization in I+ - I− collisions

Auteur(s) :

Poline, Mathias [Auteur correspondant]
Department of Physics [Stockholm]
Yuan, Xiang [Auteur]
Physico-Chimie Moléculaire Théorique [PCMT]
Badin, Sylvain [Auteur]
Laboratoire de Chimie Physique - Matière et Rayonnement [LCPMR]
Physico-Chimie Moléculaire Théorique [PCMT]
Ji, Mingchao [Auteur]
Department of Physics [Stockholm]
Rosén, Stefan [Auteur]
Department of Physics [Stockholm]
Indrajith, Suvasthika [Auteur]
Department of Physics [Stockholm]
Thomas, Richard [Auteur]
Department of Physics [Stockholm]
Schmidt, Henning [Auteur]
Department of Physics [Stockholm]
Zettergren, Henning [Auteur]
Department of Physics [Stockholm]
Severo Pereira Gomes, Andre [Auteur]

Physico-Chimie Moléculaire Théorique [PCMT]
Sisourat, Nicolas [Auteur correspondant]
Laboratoire de Chimie Physique - Matière et Rayonnement [LCPMR]

Titre de la revue :

Physical Review A

Pagination :

012812

Éditeur :

American Physical Society

Date de publication :

2022-07-18

ISSN :

2469-9926

Discipline(s) HAL :

Chimie/Chimie théorique et/ou physique

Résumé en anglais : [en]

We have studied the mutual neutralization reaction of atomic iodine ions (i.e., I++I−→I+I) in a cryogenic double electrostatic ion-beam storage-ring apparatus. Our results show that the reaction forms ...
Lire la suite >We have studied the mutual neutralization reaction of atomic iodine ions (i.e., I++I−→I+I) in a cryogenic double electrostatic ion-beam storage-ring apparatus. Our results show that the reaction forms iodine atoms either in the ground-state configuration (I(5p5 2P0), ∼40%) or with one atom in an electronically excited state (I(6s2 [2]), ∼60%), with no significant variation over the branching ratios in the studied collision-energy range (0.1–0.8 eV). We estimate the total charge-transfer cross section to be of the order of 10-13cm2 at 0.1 eV collision energy. Ab initio relativistic electronic structure calculations of the potential-energy curves of I2 suggest that the reaction takes place at short internuclear distances. The results are discussed in view of their importance for applications in electric thrusters.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Projet ANR :

Physiques et Chimie de l'Environnement Atmosphérique
ULNE

Collections :