4 ms·
Also not knowing anything about this topic, I'd assume it wasn't normal because we're talking about mass close to zero, and mass must be greater than zero.
by krona 5y ago
Also not knowing anything about this topic, I'd assume it wasn't normal because we're talking about mass close to zero, and mass must be greater than zero.
- gus_massa 5y agoThe mass in their result is 80433.5±9.4 MeV/c^2. The result of the experiment is a Gaussian like distribution. If you consider a Gaussian distribution with μ=80433.5 and σ=9.4, the probability to get a result that is less than 0 is 4E-15899105. I filled this widget https://www.wolframalpha.com/widgets/view.jsp?id=53fa34c5c669159296075c3c4ef3dc20 https://www.wolframalpha.com/widgets/view.jsp?id=53fa34c5c66... And got this result https://www.wolframalpha.com/input?i=mean%3D%5B%2F%2Fnumber%3A80433.5%2F%2F%5D%2C+standarddeviation%3D%5B%2F%2Fnumber%3A9.4%2F%2F%5D%2C+left+endpoint%3D%5B%2F%2Fnumber%3A0%2F%2F%5D%2C+right+endpoint%3D%5B%2F%2Fnumber%3A%2F%2F%5D https://www.wolframalpha.com/input?i=mean%3D%5B%2F%2Fnumber%... Note in the graphic that σ is 10000 smaller than μ so the probability to get a negative result is almost zero and you can just ignore it.