fairly simple calculation that used to work now gives extremely large cross section
Asked by
Jack
Hi, I'm using sm-ckm to generate generate p p > b~ s e+ e-, and the cross section is coming out at about 1.8 x 10^16.
This is extremely strange, as I'm fairly sure I ran exactly the same computation several times a week ago and got a more reasonable 4.5 x 10^--6.
I'm trying to rerun it with different cuts for a rather close deadline, so does anyone have any idea why this has spontaneously stopped working (even without the cuts changed)?
I just typed in:
import model sm-ckm
generate p p > b~ s e+ e-
launch
It's a fairly small set of settings, but could there have been something else I was doing before too? 10^16 seems far too high to be accurate for this computation anyway, surely?
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