Why in particle physicsis the background of resonance isin particle physics a decaying exponential?

When in particle physics they plot the mass histogram is plotted in particle physics, we see a resonance on top of a decaying exponential background?

. Why is the background modeled to be that way? whatWhat is the physical explanation?

Thanks.

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occurred Jul 17, 2015 at 7:46

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asked Jul 14, 2015 at 21:15

Why in particle physics the background of resonance is a decaying exponential?

When in particle physics they plot the mass histogram we see a resonance on top of a decaying exponential background?

Why is the background modeled to be that way? what is the physical explanation?

Thanks.