Landau in ROOT vs Landau in CLHEP

Lognumber 40.

Submitted on Sun, 17 Aug 2025 - 00:25:44 CEST

Marker: simulation

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In CLHEP, x_max does not depend on sigma and is pretty accurate: x_max == mu

In ROOT, x_max = mu - 0.22*sigma

The comparaison done with sigma = 1 and 6.

It is very important to take into account as in GEMC we use CLHEP instead of ROOT.

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