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2015:groups:tools:lhaad:proposalgrenoble
Table of Contents
This is the proposal from the LHADA Meeting in Grenoble at the end of February 2016. It is based on the “latest” combined proposal.
Here are some things which were discussed during the meeting and which should be considered when updating the proposal
- Binning does not need to be a separate block but can be done at the end of a “cut” block
- “Select” and “Reject” from MadAnalysis5 syntax, as they have a working parser framework
- “weight” keyword necessary, which reweights an event which has to pass that certain histograms at the end of a cutblock, either in form NBins:Min:Max or Bin1;Bin2;Bin3;…;Bin
- function calls as in Python-kwargs: isolation(source=tracks,ptmin=10,dR=0.5) to make it easier to read
- analysis and results clearly separated, i.e. not put result numbers in cut blocks
- rename “detectorobj”
- detectobj needs a “change” keyword which can smear objects, not jet select/reject them.
- some functions need booleans to be deactivatable, because depending on being phenomenologist or experimentalist, or depending on if one uses Delphes, Rivet, FullSim,… functions might be necessary or not (e.g. smearing functions)
General Structure
The idea is to write a plain text file that can be read easily into xml if needed (and hence universally readable). The name of the block becomes the xml tag. Anything that follows is turned into attributes. e.g. “name ATLAS” inside the block becomes <experiment name=“ATLAS”>. Anything inside the block starting with “#” is added as a comment, i.e. the block
info analysis # Details about experiment id ATLAS-2014-XXX publication JHEP11(2014)118 sqrtS 8.0 lumi 20.0
converts to
<info name="analysis" id="ATLAS-2014-XXX" publication="JHEP11(2014)118" sqrtS="8.0" lumi="20.0" description="Details about analysis">
There are five types of pre-defined blocks:
- objects (defines reconstructed objects)
- function (defines functions that act on these)
- cut (blocks of cuts)
- info (for meta information chosen by the implementer, e.g. information about publication, conf-notes, theory papers used for interpretation, benchmarks, etc.)
For presenting results, we need two more blocks, e.g.
- results (for expected, observed, S95, etc.)
- cutflow (for cutflows)
- table (for providing digitised histograms etc.)
For any block, a link to code or external documentation can be provided. We can also include a MCsamples block to document the programs used to generate signal and background samples.
info
…
info analysis # Details about experiment id SUSY-2013-15 publication JHEP11(2014)118 sqrtS 8.0 lumi 20.0 arXiv 1407.0583 hepdata https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-15/
info units ### Details about units for dimensionful quantities energy GeV length mm xsec pb # If using function repository, need to clarify if phi is between 0-2pi or -pi to pi.
function
ALTERNATIVE 1
function function_name
arg1 type-of-arg1:name-of-arg1
arg2 type-of-arg2:name-of-arg2
return type-of-returnvalue
code link-to-actual-code
doc link-to-documentation
ALTERNATIVE 2
function function_name arg1 name-of-arg1 arg2 name-of-arg2 code link-to-actual-code doc link-to-documentation
Rules:
- allowed keywords: argX, code, doc
- argX must count from arg1 upward
- all values of the argX- commands must differ
- it is recommended to follow with a comment about its meaning after each argument
- If typed,allowed types: int, float, string, bool, detectorobj, tlorentzvector, X-list (X is any of the allowed types)
- for type 'detectorobj' it should be clear from the documentation which information the detectorobj needs to have
Example:
ALTERNATIVE 1 function isolation ### Sums up activity in the vicinity of a given candidate arg1 detectorobj:candidate # a single electron, muon or photon arg2 string:isosource # "calo", "tracks", "eflow" arg3 float:dR # dR cone to be probed arg4 float:ptmin # minpt of objects to be counted arg5 bool:relIso # divide by candidate's pt? returnType float # sum of pT of the respective surrounding objects code http://google.de doc http://google.de ALTERNATIVE 2 function isolation ### Sums up activity in the vicinity of a given candidate arg1 cand # a single electron, muon or photon arg2 src # "calo", "tracks", "eflow" arg3 dR # dR cone to be probed arg4 ptmin # minpt of objects to be counted arg5 relIso # divide by candidate's pt? code http://google.de doc http://google.de function overlap ### Checks if the candidate overlaps with any object of the list provided arg1 detectorobj # to be tested candidate arg2 detectorobj-list # to be tested potential neighbours arg3 float # dR cone to be probed return bool # true if any of the neighbours is closer than dR to the candidate code http://overlap.de doc http://overlap.de function hasMediumTag ### Checks if the candidate overlaps with any object of the list provided arg1 detectorobj # electron return bool # true if it is tagged as medium code http://electrons.de/medium code http://electrons.de/medium
detectorobj
Rules:
- Each detectorobj must start with the keyword “take X”. X can either be a detectorobj-list X defined before or 'external'. In that case, the list is a fundamental object to be defined globally.
- select or reject keywords can filter out specific candidates out of the input list: They have to be followed by a Boolean expression, in which a single candidate of the given detectorobj list can be tested via name.? (see examples)
- functions can access previously defined detectorobj-lists by their name, but not the current detectorobj-list itself
- additional optional keywords can give more insightful information about commonly used parameters.
Example:
detectorobj muon_l ### Loose muons take external select isolation(cand=muon_l.?, src='tracks', dR=0.4, ptmin=0.5)<0.1 code http://muons.mu doc http://checkmate.muons.mu detectorobj elec_l ### loose electrons take external select isolation(cand=elec_l.?, src='tracks', dR=0.4, ptmin=0.5)<0.1 reject overlap(cand=elec_l.?, neigb=muon_l, dR=0.4) code http://elecs.el doc http://checkmate.elecs.el detectorobj elec_m ### medium electrons take elec_l select hasMediumTag(cand=elec_m.?) code http://elecs.el/medium doc http://checkmate.elecs.el/medium detectorobj lep ### signal leptons # lep contains medium electrons and loose muons take elec_m take muon_l detectorobj jet ### clustered jets from the calorimeter cells take external algorithm anti-kt R 0.4 ptmin 20 etamax 2.5 code http://jets.jet doc http://checkmate.jets.de
cut
Rules:
- a cut block processes a list of conditions from top to bottom:
- 'select <bool>' only lets events pass for which the boolean expression holds true
- 'reject <bool>' only lets events pass for which the boolean expression holds false
- eff?
- trigger?
- .OR.?
- allowed brackets for functions?
Example:
cut preselect ### Pre-selection cuts eff 0.95 trigger e_trigger.OR.mu_trigger.OR.met_trigger select lep.1.pt>25 reject lep.size>1 select jet.size>2 select met>100
binning
results
cutflow
info MCsamples ### All information concerning signal and background generation goes here signal Sherpa1.4.1 stop-pair background POWHEG ttbar mtop = 172.5 NLO table maasinfo doc http://singalgenerator.generate doc _benchmark_SLHA_ doc _MG5_model_files_
table
table massinfo cut pdgid mass tN_diag 1000022 1 1000006 700
Examples
ATLAS, 1 Lepton Stop Search
Link Issues:
- pt-selection, identification, overlap removal, isolation are sometimes done in alternating order. This can lead to a plethora of detector-obj.
- cuts can be very hard to read and even hard to parse. Maybe one could improve on that
info analysis # Details about experiment id SUSY-2013-15 publication JHEP11(2014)118 sqrtS 8.0 lumi 20.0 arXiv 1407.0583 hepdata https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-15/ info units energy GeV length mm xsec pb
function mT ### transverse mass arg1 tlorentzvector # visible particle arg2 tlorentzvector # missing energy vector arg3 float # mass return float # transverse mass code http://google.de doc http://google.de function amT2 ### asymmetric stransverse mass arg1 tlorentzvector # visible particle arg2 tlorentzvector # missing energy vector arg3 float # mass return float # asymmetric stransverse mass code http://google.de doc http://google.de function mT2tau ### Sums up activity in the vicinity of a given candidate arg1 detectorobj # a single electron, muon or photon arg2 string # "calo", "tracks", "eflow" arg3 float # dR cone to be probed arg4 ptmin # minpt of objects to be counted arg5 bool # divide by candidate's pt? return float # sum of pT of the respective surrounding objects code http://google.de doc http://google.de function mHadTop ### Sums up activity in the vicinity of a given candidate arg1 detectorobj # a single electron, muon or photon arg2 string # "calo", "tracks", "eflow" arg3 float # dR cone to be probed arg4 ptmin # minpt of objects to be counted arg5 bool # divide by candidate's pt? return float # sum of pT of the respective surrounding objects code http://google.de doc http://google.de function HTMissSig ### Sums up activity in the vicinity of a given candidate arg1 detectorobj # a single electron, muon or photon arg2 string # "calo", "tracks", "eflow" arg3 float # dR cone to be probed arg4 ptmin # minpt of objects to be counted arg5 bool # divide by candidate's pt? return float # sum of pT of the respective surrounding objects code http://google.de doc http://google.de function HT ### Sums up the scalar pt of the leading n objects in the given list arg1 detectorobj-list # a list of objects arg2 integer # the leading n objects of the list should be counted return float # scalarHT function isBJet ### Checks if a given jet is tagged w.r.t to the given working point efficiency arg1 detectorobj # a single jet which contains btag information arg2 float # the working point signal efficiency within [0, 1] return bool # 'true' if tagged, else false code doc function isTauJet ### Checks if a given jet is tagged w.r.t to the given working point efficiency arg1 detectorobj # a single jet which contains btag information arg2 string # the working point, "loose", "medium", "tight" return bool # 'true' if tagged, else false code doc function isIdentifiedElec ### Checks if a given electron is tagged w.r.t a given ID arg1 detectorobj # a single electron which contains rec+id information arg2 string # the working point, "loose", "medium", "tight" return bool # 'true' if tagged, else false code doc function isIdentifiedMu ### Checks if a given muon is tagged w.r.t a given ID arg1 detectorobj # a single muon which contains rec+id information arg2 string # the working point, "combined" return bool # 'true' if tagged, else false code doc function isIsolated ### Checks surroundings of an object arg1 detectorobj # electron, muon, photon arg2 string # isolation test, "tracks", "calo", "eflow" arg3 float # dR to object to count for isolation arg4 float # ptmin of object to count for isolation arg5 bool # if true, sum(pt) is divided by pt(cand) arg6 float # maximum allowed value of sum(pt) or sum(pt)/pt(cand) return bool # 'true' if sum(pt) < maxval, else false code doc function overlaps ### Checks if the candidate overlaps with any object of the list provided arg1 detectorobj # to be tested candidate arg2 detectorobj-list # to be tested potential neighbours arg3 float # dR cone to be probed return bool # true if any of the neighbours is closer than dR to the candidate code http://overlap.de doc http://overlap.de
Now for the detector objects
detectorobj jets ### clustered jets from the calorimeter cells take external algorithm anti-kt R 0.4 ptmin 20 etamax 2.5 code http://jets.jet doc http://checkmate.jets.de detectorobj b_jets ### jets with btag take jets select isBJet(b_jets.?, 70) detectorobj nob_jets ### jets without btag take jets reject isBJet(b_jets.?, 70) detectorobj tau_jets_l ### jets with loose tau tag take jets reject isTauJet(tau_jets_l.?, "loose") detectorobj tau_jets_t ### jets with tight tau tag take tau_jets_l reject isTauJet(tau_jets_t.?, "tight") detectorobj elecs_rec ### reconstructed electrons take external detectorobj elecs_l ### loosely reconstructed electrons take elecs_rec select elecs_l.?.pt>7 select elecs_l.?.eta>-2.47 select elecs_l.?.eta<2.47 detectorobj elecs_m ### medium electrons take elecs_l select isIdentifiedEl(elecs_m.?, "medium") select elecs_m.?.pt>10 code http://elecs.el/medium doc http://checkmate.elecs.el/medium detectorobj muons_rec ### reconstructed muons take external detectorobj muons_l take muons_rec select isIdentifiedMu(muons_l.?, "loose") select muons_l.?.pt>6 select muons_l.?.eta>-2.4 select muons_l.?.eta<2.4 detectorobj muons_m take muons_l select isIdentifiedMu(muons_m.?, "medium") select muons_m.?.pt>10 detectorobj nob_jets_iso ### isolated jets take nob_jets reject overlaps(nob_jets.?, elecs_m, 0.2) detectorobj elecs_t_iso ### isolated electrons take elecs_m reject overlaps(elecs_m.?, nob_jets, 0.4) reject overlaps(elecs_m.?, b_jets, 0.2) reject overlaps(elecs_m.?, tau_jets_t, 0.2) select elecs_t_iso.?.pt>25 select isIdentifiedEl(elecs_t_iso.?, "tight") select isIsolated(elecs_t_iso.?, "tracks", 0.2, 0.5, true, 0.1) detectorobj muons_t_iso ### isolated muons take muons_m reject overlaps(muons_m.?, jets, 0.4) select isIsolated(muons_m.?, "tracks", 0.2, 0.5, false, 1.8) detectorobj leptons_l ### loose leptons take muons_l take elecs_l select leptons_l.?.pt>10 detectorobj leptons ### signal leptons take elecs_t_iso take muons_m_iso select leptons.?.pt>25 detectorobj etmiss ### missing et take external
cut common select leptons.n=1 select leptons_l.n=1 select jets.n>=4 select etmiss.pt>100 cut dPhi12 select etmiss.dphi(jet.1)>0.8 select etmiss.dphi(jet.2)>0.8 cut leadjets_60to25 jets.1.pt>60 jets.2.pt>60 jets.3.pt>40 jets.4.pt>25 cut leadjets_80to25 jets.1.pt>80 jets.2.pt>60 jets.3.pt>40 jets.4.pt>25 cut leadjets_100to25 jets.1.pt>100 jets.2.pt>80 jets.3.pt>40 jets.4.pt>25 cut leading_bjet select isBJet(jets.1, 70)||isBJet(jets.2, 70)||isBJet(jets.3, 70)||isBJet(jets.4, 70) cut tN_diag select common select leadjets_60to25 select leading_bjet select mT(leptons.1,etmiss)>100 select mHadTop(?,?)>130 select mHadTop(?,?)<205 select tau_jets_t.n=0 select b_jets.1.dR<2.5 ???? select etmiss.pt/HT(jets.1,jets.2,jets.3,jets.4)>5 select dPhi12 bin etmiss=100;125;150;inf bin mT=60;90;120;140;inf results tN_diag_results: columns name obs bkg dbkg entry tN_diag_g100_g60 3452 3452 59 entry tN_diag_g100_g90 1712 1720 161 entry tN_diag_g100_g120 313 295 50 entry tN_diag_g100_g140 201 235 34 entry tN_diag_g125_g60 2018 2018 45 entry tN_diag_g125_g90 768 767 80 entry tN_diag_g125_g120 117 136 22 entry tN_diag_g125_g140 163 152 30 entry tN_diag_g150_g60 2543 2543 50 entry tN_diag_g150_g90 647 684 79 entry tN_diag_g150_g120 98 13 101 entry tN_diag_g150_g140 217 236 29 CUT tN_med select common select leadjets_80to25 select leading_bjet select etmiss.pt>200 select mT>140 select amT2>170 select mHadTop>130 select mHadTop<195 select HTMissSig>12.5 select dPhi12 CUT tN_high select common select leadjets_80to25 select leading_bjet select etmiss.pt>320 select mT>200 select amT2>170 select mT2tau>120 select mHadTop>130 select mHadTop<250 select dRbl<3.0 select HtMissSig>12.5 results tN_med_high_results: columns name obs bkg bkgerr entry tN_med 12 13.0 2.2 entry tN_high 5 5.0 1.0
2015/groups/tools/lhaad/proposalgrenoble.txt · Last modified: 2016/02/26 14:26 by daniel.schmeier
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