Shift correction to convoluted Landau-Gauss function in tutorial example

ROOT
1

Hello everyone,

I noticed that in the example provided here: ROOT: tutorials/math/fit/langaus.C File Reference, the mpshift term of the langaufun function should be multiplied by the bin size.

I hope this is helpful for others who are using the same function or implementing similar corrections.

Best regards,

M

2

Hi @mfani,
Welcome to the ROOT forum and thank you for your post.
@moneta could you please take a look?

3

Hi lbreitwi! While searching further on the topic, I came across this paper A program package for the Landau distribution - ScienceDirect, which has also been referenced in other posts. I think that the right correction should involve the distribution width rather than the bin size for scaling that factor, as it is actually implemented in the function from the tutorial example. This topic might be best to delete to avoid confusion!

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Hello @mfani,

instead of deleting the topic, I would mark your last reply as the solution, because your insight might help others.

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