Open AccessLifetimes and predissociations in the Cl2 B-state
Author(s) -
N. Billy,
G. Gouédard,
B. Girard,
J. Vigué
Publication year - 1991
Publication title -
journal de physique ii
Language(s) - English
Resource type - Journals
eISSN - 1286-4870
pISSN - 1155-4312
DOI - 10.1051/jp2:1991171
Subject(s) - hyperfine structure , atomic physics , state (computer science) , radiative transfer , dipole , transition dipole moment , chemistry , physics , moment (physics) , quantum mechanics , computer science , algorithm
We present an ensemble of experimental studies and calculations about the lifetimes and predissociations in the B state of the Cl2 molecule. The radiative lifetime is shown to be very long(τv=12 ≃1.2 ms), in accordance with the previously determined and confirmed value of the B-X transition dipole moment. Our measurements of lifetimes for (J = 0, v≥13) show the existence of a hyperfine predissociation of these states. Finally a simple model of the first Ω= 1u states of Cl2 is given which explains, within a factor of 2, the gyroscopic predissociation of the B 3ΠO+u state by the A 3Π1u and 1Π1 u states
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