In:
Science, American Association for the Advancement of Science (AAAS), Vol. 341, No. 6150 ( 2013-09-06), p. 1094-1096
Abstract:
Partial wave resonances predicted to occur in bimolecular collision processes have proven challenging to observe experimentally. Here, we report crossed-beam experiments and quantum-scattering calculations on inelastic collisions between ground-state O 2 and H 2 molecules that provide state-to-state cross sections for rotational excitation of O 2 (rotational state N = 1, j = 0) to O 2 ( N = 1, j = 1) in the vicinity of the thermodynamic threshold at 3.96 centimeter −1 . The close agreement between experimental and theoretical results confirms the classically forbidden character of this collision-induced transition, which occurs exclusively in a purely quantum mechanical regime via shape and Feshbach resonances arising from partial waves with total angular momentum ( J ) = 2 to 4.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1241395
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2013
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
detail.hit.zdb_id:
2060783-0
SSG:
11
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