Transitions between fine-structure components of neon in inelastic collisions of neon and helium atoms

1984 ◽  
Vol 41 (1) ◽  
pp. 840-844 ◽  
Author(s):  
V. M. Baran ◽  
G. L. Kononchuk ◽  
A. V. Yakunov
Keyword(s):  
Fine Structure ◽  
Inelastic Collisions ◽  
Helium Atoms

Fine-structure state resolved rotationally inelastic collisions of CH(A [sup 2]Δ,v=0) with Ar: A combined experimental and theoretical study

2001 ◽  
Vol 114 (10) ◽  
pp. 4479 ◽  
Author(s):  
M. Kind ◽  
F. Stuhl ◽  
Yi-Ren Tzeng ◽  
Millard H. Alexander ◽  
Paul J. Dagdigian
Keyword(s):  
Fine Structure ◽  
Theoretical Study ◽  
Inelastic Collisions ◽  
Structure State

Inelastic collisions between hydrogen and helium atoms

1967 ◽  
Vol 90 (1) ◽  
pp. 73-80 ◽  
Author(s):  
D R Bates ◽  
D S F Crothers
Keyword(s):  
Inelastic Collisions ◽  
Helium Atoms

Investigation of rotational state-changing collisions of C2N− ions with helium

2019 ◽  
Vol 15 (S350) ◽  
pp. 443-444
Author(s):  
Jan Franz ◽  
Francesco Antonio Gianturco
Keyword(s):  
Dipole Moment ◽  
Potential Energy ◽  
Potential Energy Surface ◽  
Cross Sections ◽  
Energy Surface ◽  
Inelastic Collisions ◽  
Atomic Gases ◽  
Molecular Anion ◽  
Helium Atoms ◽  
Molecular Anions

AbstractThe cross sections for rotational inelastic collisions between atoms and a molecular anion can be very large, if the anion has a dipole moment. This makes molecular anions very efficient in cooling atomic gases. We address rotational inelastic collisions of Helium atoms with the molecular anion C2N–. Here we present preliminary calculations of the potential energy surface.

Inelastic collisions of fine structure and Λ-doublet resolved rotational states of PH(A 3Π, v=0) with helium

1997 ◽  
Vol 106 (18) ◽  
pp. 7642-7653 ◽  
Author(s):  
L. Neitsch ◽  
F. Stuhl ◽  
Paul J. Dagdigian ◽  
Millard H. Alexander
Keyword(s):  
Fine Structure ◽  
Inelastic Collisions ◽  
Rotational States

Inelastic Collisions between Excited Alkali Atoms and Molecules. VIII. 62P1/2–62P3/2 Mixing and Quenching in Mixtures of Rubidium with H2, HD, D2, N2, CH4, and CD4

1973 ◽  
Vol 51 (3) ◽  
pp. 257-265 ◽  
Author(s):  
I. N. Siara ◽  
L. Krause
Keyword(s):  
Fine Structure ◽  
Cross Sections ◽  
Ground State ◽  
Inelastic Collisions ◽  
Fluorescent Intensity ◽  
Rubidium Vapor ◽  
Sensitized Fluorescence ◽  
Molecular Gases ◽  
Alkali Atoms ◽  
Intensity Ratios

Excitation transfer between the 62P fine-structure substates in rubidium, induced in inelastic collisions with ground-state molecules, has been studied using techniques of sensitized fluorescence. Rubidium vapor in mixtures with various molecular gases was irradiated with each component of the 2P rubidium doublet in turn, and measurements of sensitized-to-resonance fluorescent intensity ratios yielded the following mixing cross sections Q12(2P1/2 → 2P3/2) and Q21(2P1/2 ← 2P3/2), as well as effective quenching cross sections Q1X(2P1/2 → 2XJ″) and Q2X(2P3/2 → 2XJ″). For collisions with H2: Q12(2P1/2 → 2P3/2) = (41 ± 5) Å2; Q21(2P1/2 ← 2P3/2) = (26 ± 3) Å2; Q1X(2P1/2 → 2XJ″) = (36 ± 9) Å2; Q2X(2P3/2 → 2XJ″) = (31 ± 8) Å2. For HD: Q12 = (42 ± 5) Å2; Q21 = (27 ± 4) Å2; Q1X = (47 ± 13) Å2; Q2X = (38 ± 10) Å2. For D2: Q12 = (42 ± 5) Å2; Q21 = (27 ± 4) Å2; Q1X = (28 ± 8) Å2; Q2X = (21 ± 7) Å2. For N2: Q12 = (107 ± 15) Å2; Q21 = (70 ± 10) Å2; Q1X = (128 ± 44) Å2; Q2X = (126 ± 33) Å2. For CH4: Q12 = (38 ± 6) Å2; Q21 = (24 ± 3) Å2; Q1X = (129 ± 41) Å2; Q2X = (114 ± 37) Å2. For CD4: Q12 = (52 ± 7) Å2; Q21 = (34 ± 5) Å2; Q1X = (82 ± 30) Å2; Q2X = (76 ± 22) Å2. An analysis of these results suggests the possibility of resonances with various molecular rotational and vibrational transitions.

The Fine Structure of Alkali Metal Atoms in Inelastic Collisions with Hydrogen

2019 ◽  
Vol 127 (2) ◽  
pp. 207-211 ◽  
Author(s):  
S. A. Yakovleva ◽  
Ya. V. Voronov ◽  
A. K. Belyaev
Keyword(s):  
Fine Structure ◽  
Alkali Metal ◽  
Inelastic Collisions ◽  
Metal Atoms

Low-temperature inelastic collisions between hydrogen molecules and helium atoms

2008 ◽  
Vol 128 (22) ◽  
pp. 224308 ◽  
Author(s):  
G. Tejeda ◽  
F. Thibault ◽  
J. M. Fernández ◽  
S. Montero
Keyword(s):  
Low Temperature ◽  
Inelastic Collisions ◽  
Helium Atoms ◽  
Hydrogen Molecules
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