QEE: Hlt2 lines for quarkonia (Jpsi & U1S)
@rjhunter We are proposing adding in new Hlt2 lines from QEE for Jpsi->mumu and Upsilon(1S)->mumu, gaining control on the kinematic cuts and making them more static as opposed to already existing options (BandQ and QEE's Drell-Yan lines). These are intended for turbo stream in QEE.
Generating general dimuon builders, and then specificying the defaults in functions make_jpsi_{prompt/displaced}()
and make_upsilon()
.
Was decided to reduce rate by adding prescale=0.1
for the Jpsi_Prompt
line specifically.
Rates calculated on 20k minbias (hlt1-filtered).
Efficiencies calculated with 5k signal MC (jpsi's use a corrected denominator to split into Detached and Prompt).
All lines have the following cuts:
ismuon
min_pt_muon = 500. MeV
max_trchi2ndof_muon = 5.
max_vchi2ndof = 10.
Property | Jpsi_detached | Jpsi_prompt | Upsilon(1s) |
---|---|---|---|
dimuon_mass_PDG | 3096.9 MeV | 3096.9 MeV | 9460.3 MeV |
dimuon_mass_window | 100 MeV | 100 MeV | 400 MeV |
min_bpvdls | 3. | None | None |
max_bpvdls | None | 3. | None |
prescale | 1 | 0.1 | 1 |
- | - | - | - |
Rate | 0.9 +/- 0.2120 kHz | 0.605 +/- 0.1734 kHz | 0.15 +/- 0.0865 kHz |
Est. Signal Rate | 0.22 kHz | 0.14 kHz | 0.01 kHz |
Signal Efficiency | 0.712 +/- 0.033 | 0.079 +/- 0.004 | 0.805 +/- 0.007 |
ToDo:
-
Improve rates and efficiencies to acceptable values