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GaussBessel¶

Description¶

Bessel function oscillation with Gaussian damp $\frac{1}{3}$ component. Example: Spin Density Wave.

$A(t) = A_0\left(\frac{1}{3}+\frac{2}{3}J_0(\omega t + \phi)e^{-\frac{(\sigma t)^2}{2}}\right)$

where,

$N_O$ is the count at $t=0$ ,

$\sigma$ (MHz) is the Gaussian relaxation rate,

$\omega = 2\pi \nu$ is the oscillating frequency,

$\nu$ (MHz) is the oscillation frequency,

and $\phi$ is the phase.

Name	Default	Description
A0	0.2	Amplitude
Freq	0.5	ZF Frequency (MHz)
Sigma	0.2	Gaussian relaxation for oscillatory component
Phi	0.0	Phase (rad)

Categories: FitFunctions | Muon\MuonSpecific