STATE-TO-STATE DIFFERENTIAL CROSS-SECTIONS FROM PHOTOINITIATED BULB REACTIONS

NE SHAFER*, WR SIMPSON, H XU, RN ZARE, Andrew J Orr-Ewing

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

102 Citations (Scopus)

Abstract

We consider a mixture of a diatomic photolytic precursor AX and a reagent BC that undergoes the photoinitiated reaction AX+hnu-->A+X followed by A+BC-->AB+C. In the limit that AX is stationary relative to BC, we show that the three-dimensional velocity distribution of the AB product in a specified quantum state can be related to the differential cross section of the A+BC reaction by a simple, invertable, closed-form expression. With a favorable choice of kinematics, we demonstrate that it is possible to extract the full state-to-state differential cross section from a measurement of the velocity distribution of the AB product in the laboratory frame.

Original languageEnglish
Pages (from-to)155-162
Number of pages8
JournalChemical Physics Letters
Volume212
Issue number1-2
Publication statusPublished - 3 Sep 1993

Keywords

  • MOLECULAR-BEAM
  • DYNAMICS
  • VELOCITY

Cite this