Add numerical safety net to invariant mass selector
Description
Fixes #500 (closed)
Test Plan
- Verify that when a selector for invariant mass between some lower value and E_CMS is applied to an e+e- setup (with no QED ISR), the cross section is unchanged.
- Verify that physics results are unchanged for hadron collider setups.
Example Result
perhaps a plot exemplifying the new feature; ideally the outcome of the above test plan, or the result of a more involved run
Additional Checklist Items
-
I have updated documentation as needed N/A -
I considered if this should be cherry-picked/ported somewhere else (rel-2-x or master), and if yes, opened a corresponding issue or MR N/A
Edited by Lois Flower