Breit-Wigner formula

Breit-Wigner formula

[¦brīt ′vig·nər ‚fȯr·myə·lə]
(nuclear physics)
A formula which relates the cross section of a particular nuclear reaction with the energy of the incident particle, when the energy is near that required to form a discrete resonance level of the component nucleus.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Estimation of the corresponding rate may be complicated since the Breit-Wigner formula is likely inapplicable because of the high density of resonances.