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MuMinusExpTF

Description

A relatxation function for negative muons in Traverse field.

\[N(t)=N_0e^{-frac{t}{\tau}}\left(1+Ae^{-\lambda t}\cos(2\pi\nu t + \phi)\right)\]

where,

\(N_O\) is the count at \(t=0\) ,

\(\tau\) is the muon decay life time,

\(A\) is the relative amplitude of the oscillatory term,

\(\lambda\) (MHz) is the relaxation rateo f the oscillatory term,

\(\nu\) is the oscillating frequency,

and \(\phi\) is the phase.

(Source code, png, hires.png, pdf)

Properties (fitting parameters)

Name	Default	Description
A	1.0
Lambda	0.1	Decay rate of oscillating term
N0	1.0
Tau	5.0
Phi	0.3	Phase
Nu	0.2	Oscillating frequency (MHz)

References

[1] PSI MUSRFIT documentation.

Categories: FitFunctions | Muon\MuonSpecific

Source

Python: MuMinusExpTF.py