Accession Number:

AD0633837

Title:

TIME-SMOOTHED ASPECTS OF RATE AND CROSS-SECTION MEASUREMENTS.

Descriptive Note:

Technical rept.,

Corporate Author:

BRANDEIS UNIV WALTHAM MASS DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1966-05-15

Pagination or Media Count:

28.0

Abstract:

The measurement aspects of experiments designed to yield information about rates at which certain processes occur in a system, as well as their relevant cross-sections, are discussed. As a closer approximation to experimental quantities, their time-smoothed theoretical counterparts are dealt with. The asymptotic behavior of these quantities, as the interval of time-smoothing becomes indefinitely large, are examined. In the long-term time averaged sense, it is shown that cross-sections computed from transition probabilities or rates of change of transition probability yield equivalent results in the limit of the system approaching a zero value of its density. The equivalence of the cross-section based upon a stationary state formalism is also established. The formal equivalence holds for many-particle systems. Author

Subject Categories:

  • Physical Chemistry
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE