## Abstract

A new quasiclassical-trajectory Legendre moment method is applied to calculate the expectation values of several angular-momentum quantities as functions of scattering angle θ for the reaction H+Br_{2}→ HBr+Br for a relative translational temperature of 2800°K. The calculated differential cross section is backward peaked. The strongest alignments found are (J′_{z})^{2}/(J′)^{2} = 0.62 at θ = 135°, (J′z′)^{2}/(J′)^{2} = 0.67 at θ = 100°, and (J′_{x})^{2}/(J′) ^{2} = 0.63 at θ = 95°, where J′ is the magnitude of HBr rotational angular momentum, the z and z′ axes are in the directions of the initial and final relative velocities, and the x axis is perpendicular to the z axis and in the plane of the z and z′ axes. Although the average value of L′/(L′ + J′), where L′ is the orbital angular momentum of relative motion, is 0.70, the results differ from statistical-model predictions for the limiting case where L′≫J′.

Original language | English (US) |
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Pages (from-to) | 1540-1546 |

Number of pages | 7 |

Journal | The Journal of chemical physics |

Volume | 67 |

Issue number | 4 |

DOIs | |

State | Published - 1977 |

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