Collision cross-section

{
  "id": "MLC-T-CHM-002220",
  "term": "Collision cross-section",
  "field": "Chemistry",
  "definition": "A measure of the effective area that a particle presents to an incoming projectile for a specific type of collision event. It quantifies the probability of an interaction occurring between two particles. This value has units of area, often expressed in square meters or barns.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "collision diameter",
    "collision theory"
  ],
  "references": [
    "Green Book, 2nd ed., p. 56 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/collision-cross-section/"
}