### Abstract

An analytical formula for approximation of the real parts of resonance functions in the pressure-broadening theory is proposed. The trajectories are computed from the isotropic Lennard-Jones (6-12) potential using ordinary equations of classical mechanics. The proposed analytical formula is a part of a power series of hyperbolic tangents th(z). The coefficients of this series are determined for the real parts of nine resonance functions. A test calculation of broadening coefficients for HCl in argon is discussed.

Original language | English |
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Pages (from-to) | 2759-2766 |

Number of pages | 8 |

Journal | Molecular Physics |

Volume | 104 |

Issue number | 16-17 |

DOIs | |

Publication status | Published - 20 Aug 2006 |

### ASJC Scopus subject areas

- Biophysics
- Molecular Biology
- Condensed Matter Physics
- Physical and Theoretical Chemistry

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## Cite this

Lavrentieva, N. N., & Starikov, V. I. (2006). Approximation of resonance functions for exact trajectories in the pressure-broadening theory. Real parts.

*Molecular Physics*,*104*(16-17), 2759-2766. https://doi.org/10.1080/00268970600875315