--SRC Index

Upside down....Inside out

So, as a follow-up to the discussion about how to battle big error bars , here are some upside down ratio plots. Here, the errorbars are taken to be symmetric (just the relative errors from the cross sections added together in quadrature).

It's pretty sad how the helium-3 cross section is totally 0 for x>2.7.

CLAS didn't have a 56/4 ratio, but through the magic of division, I constructed one.









Ratio to 4He (for slightly more sane errorbars)




Raw Cross sections that go into the ratios

Relative Uncertainty in 4He/3He ratio


Absolute Uncertainty in 3He, yield vs sigma