What is the convention of indicating energy and gamma intensity errors?

General Chat
1

Hi guys,

Can somebody remind me what the convention of indicating energy and gamma intensity errors is?

For example, in www.nndc.bnl.gov, they use "1460.820 5 10.66 % 17 " respectively for energy and gamma inttensity of 40K decay information?

Sincerely yours.

2

Hi,

this is an interesting topic but how is ROOT involved?

Cheers,
D

3

Nothing to do with ROOT. That’ s why I put it under the general chat for an quick answer.
Example, www.nndc.gov website uses 1460.830 5 keV for energy and (10.66 % 17) in percentage for gamma intensity for 40K nuclide.

Does that mean 0.1066± (0.1066x0.17) , or not? For energy, does it mean 1460.830keV ± 0.005 or 1460.830keV ± (1460.830 x0.05) keV.