Opened 5 years ago
Last modified 5 years ago
#1410 new How to
Muon Reconstruction
| Reported by: | Abhishek Iyer | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | Delphes code | Version: | Delphes 3 |
| Keywords: | Cc: |
Description
Dear Delphes Team,
I am comparing the muon reconstruction efficiency between default delphes CMS card and the delphes HL card. With the HL-LHC card, I find that there is a significant improvement in the reconstruction efficiency. The process is an on-shell Z' with mass 3 TeV decaying into muons at 14 TeV. I assumed a narrow width. I am attaching a plot for your reference.
I am wondering if this difference is expected after the upgrade or am I missing something
best regards
Abhishek
Attachments (1)
Change History (3)
by , 5 years ago
| Attachment: | reconstruction.png added |
|---|
comment:1 by , 5 years ago
Hello,
thanks for the plot. I believe you are talking about the momentum resolution rather than efficiency.
Actually I believe one to be pessimistic (CMS) and one to be optimistic.
The tracker is supposed to be better in PhaseII which should improve the momentum resolution.
This said this is all based on guesses. If you have access to what the resolutions should be in one case or the other please let use know.
I could not find official plot for either.
comment:2 by , 5 years ago
Hello,
Thank you very much for the reply and the clarification. The only information I have access to is the CMS TDR https://cds.cern.ch/record/2283189/files/CMS-TDR-016.pdf and Fig. 8.16 which was pointed out to me by my colleague in IPNL. This shows the mass reconstruction for a 1.6 TeV particle. I don't have the details of the resolution but from here I understand it as being more consistent with the pessimistic case.
Please do correct me if my interpretation is incorrect.
thanks
Muon reconstruction