## Abstract

The absolute values of probabilities of the radiative I^{1} Π_{g} ^{-}, ν, ′, N → B^{1} Σ_{u} ^{+}, ν″, N transitions of the H_{2} molecule are obtained for the first time for values of the vibrational quantum numbers ν′= 0-3 and ν″ = 0-9 and the rotational quantum numbers N= 2-6. The calculations are carried out using a nonadiabatic model developed in our previous papers, which takes into account the electronic-rotational interaction of the 3d^{1} Π_{g} ^{-}, ν′, N and 3d^{1} Δ_{g} ^{-}, ν′, N levels. Semiempirical data on expansion coefficients of the total wave functions of I^{1} Π_{g} ^{-}, ν′, N states in the Born-Oppenheimer basis of the 3d^{1} Π_{g} ^{-}, and 3d^{1} Δ _{g} ^{-} states are used. The dependence of the dipole moment of the 3d^{1} π_{g} → 2p^{1} Σ_{u} ^{+}electronic transition on the internuclear separation r is determined both from our semiempirical data and from results of a nonempirical calculation available in the literature. It is found that the discrepancy between values of rovibronic transition probabilities, obtained on the basis of nonempirical and semiempirical data on the dipole moment of this transition, is, on the average, about 30%.

Original language | English |
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Pages (from-to) | 348-355 |

Number of pages | 8 |

Journal | Optics and Spectroscopy (English translation of Optika i Spektroskopiya) |

Volume | 85 |

Issue number | 3 |

State | Published - 1 Dec 1998 |

## Scopus subject areas

- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics