Les Houches
2023 Session
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- Use of wiki pages and slack. Wifi access/set-up.
- Important info about bus, lodging, facilities.
- Bulletins.
Wikis of Previous sessions
Les Houches Themes
(Lyrics and Music)
(Lyrics and Music)
This is an old revision of the document!
Members: Sophie, Wolfgang, Humberto, Benj, Andy, Sabine
Problem statement: to identify pairs of signal regions of the analyses in the PAD database that can safely be treated as approximately uncorrelated.
Solution: We aim at a probabilistic approach. We produce events to populate all signal regions, then analyse the extent to which SRs are statistically correlated, i.e. share events.
The events used for the filling should be from (the sum of several) signal models known to provide good SR population. We could use the analyses' benchmark signal MC samples, but a cooler idea is to use SModelS to map topologies (=SRs) back to model points.
For the stats, we'll use bootstrapping rather than directly study which events fall into common signal regions. Procedure: in the analysis framework the set of populated SRs is reported for each event, e.g. as a line of N_SR 1s and 0s in an output file. We then process this: for each event (=line) we sample N_history = O(100-1000) Poisson(lambda=1) weights, and enter these into a set of N_history histograms (each histogram has N_SR bins). We then build a correlation matrix between the bins using the standard sample covariance cov_ij = <sumw_i sumw_j> - <sumw_i> <sumw_j> and corr_ij = cov_ij / sqrt( cov_ii cov_jj ). Finally, convert this to a binary “sufficiently independent SRs” matrix with a corr threshold: indep_ij = (|corr_ij| < thres). The 1s in each row (or column) of this binary matrix define a set of statistically independent SRs, which can be trivially combined in a likelihood.
- Any version of the code from v1.8.20 onwards, to be downloaded e.g. from here .
- This version contains two new dedicated functions (to be added in tools/PAD/Build/Main/main.cpp):
nb mono-X analyses generally cannot be treated in SModelS
Analysis ID | Short description | SMS in SModelS | Result Type | Comment |
---|---|---|---|---|
ATLAS-SUSY-2015-06 | multijet + MET, 3.2 fb-1 | T1, T2 | EM | superseded by 36 fb-1 analysis |
ATLAS-SUSY-2016-07 | multijet + MET, 36 fb-1 | T1, T2, T5ZZ, T5WW(off) | EM | in SModelS develop |
CMS-SUS-16-033 | multijet + MET, 36 fb-1 | T1, T1bbbb, T1tttt(off), T2, T2bb, T2tt(off) | UL | |
CMS-SUS-16-039 | multilepton EWK | TChiWZ(off), TChiWH, TChipmSlep… | UL | |
CMS-SUS-16-052 | 1L stop, soft | T2bbWWoff, T6bbWWoff | UL, agg-EM | SModelS has only PAS version of this |
CMS-SUS-17-001 | 2L stop | T2tt(off), T6bbWW | UL |
Analysis ID | Short description | SMS in SModelS | Result Type | Comment |
---|---|---|---|---|
ATLAS-SUSY-2016-07 | multijet + MET | T1, T2, T5ZZ, T5WW(off) | EM | in SModelS develop |
ATLAS-SUSY-2016-15 | 0L stop | – | – | should include this in SModelS |
ATLAS-SUSY-2016-16 | 1L stop | – | – | should include this in SModelS |
ATLAS-SUSY-2016-17 | 2L stop | T2tt(off), T2bbWWoff | UL | should include this in SModelS |
ATLAS-SUSY-2016-28 | b-jets + MET | – | – | should include this in SModelS |
ATLAS-SUSY-2016-24 | multilepton EWK | (UL: TChiWZ, TSlepSlep, …) (EM: TChiWZ) | – | should include this in SModelS (currently in Philipp's branch) |
CMS-SUS-16-033 | multijet + MET | T1, T1bbbb, T1tttt(off), T2, T2bb, T2tt(off) | UL | |
CMS-SUS-16-043 | 1L 2b + MET (EWKino) | TChiWH | UL | only PAS version in Colliderbit |
CMS-SUS-16-051 | 1L stop | T2tt(off), T6bbWW | UL | |
CMS-SUS-17-001 | 2L stop | T2tt(off), T6bbWW | UL | |
CMS-SUS-16-034 | SFOS lept. + jets | T5ZZ, TChiWZ | UL | only on-Z SRs in ColliderBit |
CMS-SUS-16-039 | multilepton EWK | TChiWZ(off), TChiWH, TChipmSlep… | UL |
… to be done …
atlas_1712_08119 39 electroweakinos search with soft leptons
atlas_1712_02332 24 squarks and gluinos, 0 lepton, 2-6 jets
atlas_1709_04183 14 stop pair production, 0 leptons
atlas_1802_03158 7 search for GMSB with photons
atlas_1708_07875 2 electroweakino search with taus and MET
atlas_1706_03731 19 same-sign or 3 leptons RPC and RPV SUSY
cms_sus_16_039 158 electrowekinos in multilepton final state
cms_sus_16_048 20 two soft opposite sign leptons