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Relativistic Breit–Wigner distribution

The relativistic Breit–Wigner distribution (after the 1936 nuclear resonance formula of Gregory Breit and Eugene Wigner) is a continuous probability distribution with the following probability density function, f ( E ) = k ( E 2 − M 2 ) 2 + M 2 Γ 2 , {\displaystyle f(E)={\frac {k}{(E^{2}-M^{2})^{2}+M^{2}\Gamma ^{2}}},} where k is a constant of…

Measurement, Usage & Gaussian broadening