Changes between Version 1 and Version 2 of FAQ-General-10
- Timestamp:
- Apr 6, 2012, 4:33:02 PM (13 years ago)
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FAQ-General-10
v1 v2 1 1 2 2 3 ==== I generated an s-channel process p p > W+ >e+ ve, and in some events the W doesn't show up in the event record. Why is this? ====3 ==== I generated an s-channel process p p > W+ > e+ ve, and in some events the W doesn't show up in the event record. Why is this? ==== 4 4 5 5 This is perfectly normal. Since you haven't used the decay chain syntax for the W, 6 6 7 p p > (W+ >e+ ve) (in MG4) or7 p p > (W+ > e+ ve) (in MG4) or 8 8 9 p p > W+, W+ >e+ ve (in MG5)9 p p > W+, W+ > e+ ve (in MG5) 10 10 11 11 the W is not forced to be onshell - so when the invariant mass of e+ ve goes beyond the specified 15 widths (given by bwcutoff in the run_card) it is not included in the event file. … … 14 14 15 15 -- Main.JohanAlwall - 2011-01-29 16