## Abstract

Strong resonance features were observed in the near-threshold excitation of [Formula Presented]. Absolute total cross sections for electron-impact excitation of the [Formula Presented]S→3s3p[Formula Presented] and [Formula Presented]S→3s3p[Formula Presented] transitions in [Formula Presented] were measured by using the merged electron-ion beams energy loss technique. The results are compared with the R-matrix close-coupling theory (CCR) and the independent-process isolated-resonance distorted-wave approximation. Observed disagreement between CCR theory and experiment at the near-threshold peak for the [Formula Presented]S→3s3p[Formula Presented] transition is interpreted to be due to very sensitive resonance interference.

Original language | English |
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Pages (from-to) | 2044-2049 |

Number of pages | 6 |

Journal | Physical Review A - Atomic, Molecular, and Optical Physics |

Volume | 55 |

Issue number | 3 |

DOIs | |

State | Published - 1997 |