Leptons/photons doulbe counted as jets
Bug #987773 reported by
Justin
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| SPODS |
Invalid
|
Undecided
|
Justin | ||
| WebHEP |
Invalid
|
Medium
|
Justin | ||
Bug Description
WebHEP bzr revno: 27
pyjamas 0.8alpha1
python 2.7.1
ROOT 5.32
Firefox 11
Apache 2.2.17
Ubuntu 11.04
As can be seen by looking at the di-jet invariant mass plot in Zll events, leptons are double-counted as jets. This probably also biases event sum plots too high.
Rather than checking for double counting in the WebHEP analyser, it would probably be better to eliminate this double counting in the ROOT tree creation software.
Revision history for this message
| Justin (reg-hugonweb) wrote | #1 |
| Changed in webhep: | |
| status: | New → Invalid |
| Changed in spods: | |
| status: | New → Invalid |
| assignee: | nobody → Justin (reg-hugonweb) |
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I think I was mistaken about this bug...the cross-section that for dijets in Zll are counted is much lower than the cross-section that dileptons are counted.