Tables of Einstein coefficients and lifetimes of upper rovibronic levels for Q-branch lines of the the d3Π−u−a3Σ+g bands for the H2, HD, D2, and T2 molecules

Research output

Abstract

The present work reports results of the semi-empirical determination of the spontaneous emission transition probabilities (Einstein coefficients) for Q-branch lines of Fulcher-α band system and radiative lifetimes of upper electronic-vibro-rotational (rovibronic) levels for the most important isotopologues of diatomic hydrogen. They are based on an adiabatic theoretical model and all currently available experimental data on rovibronic energy levels, ratios of the line strengths and the lifetimes. Numerical data are presented in tabular format for vibrational quantum numbers v’=0-6 and v"=0-7 (N is the quantum number of total angular momentum of the molecule excluding electron and nuclear spins). The uncertainties (one SD) of experimental and semi-empirical data are listed for each datum. Currently available results of ab initio calculations are listed and may be used for comparisons. For the d3Πu,v’=4÷6,N=1 levels of the H2 molecule the lifetimes caused by predissociation via non-adiabatic interaction with c
Original languageEnglish
Publication statusPublished - 2015

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life (durability)
quantum numbers
coefficients
molecules
radiative lifetime
nuclear spin
electron spin
transition probabilities
spontaneous emission
format
angular momentum
energy levels
hydrogen
electronics
interactions

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@misc{6fc61981324e40e59d10050420f6c799,
title = "Tables of Einstein coefficients and lifetimes of upper rovibronic levels for Q-branch lines of the the d3Π−u−a3Σ+g bands for the H2, HD, D2, and T2 molecules",
abstract = "The present work reports results of the semi-empirical determination of the spontaneous emission transition probabilities (Einstein coefficients) for Q-branch lines of Fulcher-α band system and radiative lifetimes of upper electronic-vibro-rotational (rovibronic) levels for the most important isotopologues of diatomic hydrogen. They are based on an adiabatic theoretical model and all currently available experimental data on rovibronic energy levels, ratios of the line strengths and the lifetimes. Numerical data are presented in tabular format for vibrational quantum numbers v’=0-6 and v{"}=0-7 (N is the quantum number of total angular momentum of the molecule excluding electron and nuclear spins). The uncertainties (one SD) of experimental and semi-empirical data are listed for each datum. Currently available results of ab initio calculations are listed and may be used for comparisons. For the d3Πu,v’=4÷6,N=1 levels of the H2 molecule the lifetimes caused by predissociation via non-adiabatic interaction with c",
keywords = "Key words: hydrogen, deuterium, tritium, excited electronic states, rovibronic levels, transition probabilities, Einstein coefficients, mean lifetime, radiative lifetime, non-empirical calculations, predissociation.",
author = "Lavrov, {B. P.} and Pozdeev, {L. L.} and Yakovleva, {V. I.}",
year = "2015",
language = "English",
type = "Other",

}

TY - GEN

T1 - Tables of Einstein coefficients and lifetimes of upper rovibronic levels for Q-branch lines of the the d3Π−u−a3Σ+g bands for the H2, HD, D2, and T2 molecules

AU - Lavrov, B. P.

AU - Pozdeev, L. L.

AU - Yakovleva, V. I.

PY - 2015

Y1 - 2015

N2 - The present work reports results of the semi-empirical determination of the spontaneous emission transition probabilities (Einstein coefficients) for Q-branch lines of Fulcher-α band system and radiative lifetimes of upper electronic-vibro-rotational (rovibronic) levels for the most important isotopologues of diatomic hydrogen. They are based on an adiabatic theoretical model and all currently available experimental data on rovibronic energy levels, ratios of the line strengths and the lifetimes. Numerical data are presented in tabular format for vibrational quantum numbers v’=0-6 and v"=0-7 (N is the quantum number of total angular momentum of the molecule excluding electron and nuclear spins). The uncertainties (one SD) of experimental and semi-empirical data are listed for each datum. Currently available results of ab initio calculations are listed and may be used for comparisons. For the d3Πu,v’=4÷6,N=1 levels of the H2 molecule the lifetimes caused by predissociation via non-adiabatic interaction with c

AB - The present work reports results of the semi-empirical determination of the spontaneous emission transition probabilities (Einstein coefficients) for Q-branch lines of Fulcher-α band system and radiative lifetimes of upper electronic-vibro-rotational (rovibronic) levels for the most important isotopologues of diatomic hydrogen. They are based on an adiabatic theoretical model and all currently available experimental data on rovibronic energy levels, ratios of the line strengths and the lifetimes. Numerical data are presented in tabular format for vibrational quantum numbers v’=0-6 and v"=0-7 (N is the quantum number of total angular momentum of the molecule excluding electron and nuclear spins). The uncertainties (one SD) of experimental and semi-empirical data are listed for each datum. Currently available results of ab initio calculations are listed and may be used for comparisons. For the d3Πu,v’=4÷6,N=1 levels of the H2 molecule the lifetimes caused by predissociation via non-adiabatic interaction with c

KW - Key words: hydrogen

KW - deuterium

KW - tritium

KW - excited electronic states

KW - rovibronic levels

KW - transition probabilities

KW - Einstein coefficients

KW - mean lifetime

KW - radiative lifetime

KW - non-empirical calculations

KW - predissociation.

M3 - Other contribution

ER -