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Hardware: Software:

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Presentation on theme: "Hardware: Software:"— Presentation transcript:

1 Hardware: http://wwwhephy.oeaw.ac.at/p3w/cms/trigger Software: http://cmsdoc.cern.ch/orca/Manuals/ORCA_8_8_0/doc/ReferenceManual/html/L1GlobalTrigger.html Joint L1/PRS Workshop on Trigger for P-TDR CMS Week, CERN, 16 March 2005 Presented by Claudia-Elisabeth Wulz Level-1 Global Trigger

2 CMS Week, March 2005 C. - E. Wulz2 Global Trigger ORCA-Software - Based on work by M. Fierro and N. Neumeister Documentation: http://cmsdoc.cern.ch/orca/Manuals/ORCA_8_8_0/doc/ReferenceManual/html/L1GlobalTrigger.html

3 CMS Week, March 2005 C. - E. Wulz3 Global Trigger Design trigger decision The trigger decision is taken by combining the trigger objects: Logic combinations of trigger objects sent by the Global Calorimeter Trigger and the Global Muon Trigger Best 4 isolated electrons/photonsE T, ,  Best 4 non-isolated electrons/photonsE T, ,  Best 4 jets in forward regionsE T, ,  Best 4 jets in central regionE T, ,  Best 4  -JetsE T, ,  Total E T  E T Total E T of all good jetsH T Missing E T E T missing,  (E T missing ) 12 jet multiplicities N jets (different E T thresholds and  -regions) Best 4 muonsp T, charge, , , quality, MIP, isolation Thresholds (p T, E T, N Jets ) Optional topological and other conditions (geometry, isolation, charge, quality) 128 flexible parallel running algorithms for physics are possible at one time. The trigger decision (Level-1-Accept) is a function of the 128 trigger algorithm bits, applying a predefined mask.

4 CMS Week, March 2005 C. - E. Wulz4 DAQ-TDR Low Luminosity Trigger Menu

5 CMS Week, March 2005 C. - E. Wulz5 Algorithm Trigger Condition Threshold (low luminosity) 0 Single muon pT > 14 GeV/c 1Di-muon pT > 3 GeV/c 2Single isolated e/  ET > 23 GeV (29 GeV @ 95% eff) 3Isolated 2e/2  ET > 12 GeV (17 GeV @ 95% eff) 42e/2  (isolated + non-isolated) ET > 19 GeV 51 muon + 1 isolated e/  pT > 5 GeV/c, ET > 15 GeV 6total transverse energy ET > 600 GeV 7missing transverse energy ET > 140 GeV 8 1 central jet ET > 177 GeV 9 1 forward jet ET > 177 GeV 10 1 tau jet ET > 93 GeV (86 GeV @ 95% eff) 11 2 central jets ET > 130 GeV 12 2 forward jets ET > 130 GeV 13 2 tau jets ET > 66 GeV (59 GeV @ 95% eff) 14 3 central jets ET > 86 GeV 15 3 forward jets ET > 86 GeV 16 3 tau jets ET > 40 GeV 17 4 central jets ET > 70 GeV 18 4 forward jets ET > 70 GeV 19 4 tau jets ET > 30 GeV 20 1 muon + 1 central jet pT > 5 GeV/c, ET > 30 GeV 21 1 muon + 1 forward jet pT > 5 GeV/c, ET > 30 GeV 22 1 muon + 1 tau jet pT > 5 GeV/c, ET > 25 GeV 23 1 muon + missing energy pT > 5 GeV/c, ET > 45 GeV 24 1 isolated e/  + 1 central jet ET > 21 GeV, ET > 45 GeV 25 1 isolated e/  + 1 forward jet ET > 21 GeV, ET > 45 GeV 26 1 isolated e/  + 1 tau jet ET > 14 GeV, ET > 52 GeV 27 1 isolated e/  + missing energy ET > 21 GeV, ET > 75 GeV 28 1 central jet + missing energy ET > 88 GeV, ET > 46 GeV 29 1 forward jet + missing energy ET > 88 GeV, ET > 46 GeV 30 1 tau jet + missing energy ET > 35 GeV, ET > 40 GeV Actual Low Luminosity Trigger Menu in ORCA

6 CMS Week, March 2005 C. - E. Wulz6 DAQ-TDR High Luminosity Trigger Menu

7 CMS Week, March 2005 C. - E. Wulz7 Item Trigger Condition Threshold (high luminosity) 0 Single muon pT > 20 GeV/c 1Di-muon pT > 5 GeV/c 2Single isol. e/  ET > 28 GeV (34 GeV @ 95% eff) 3Isolated 2e/2  ET > 14 GeV (19 GeV @ 95% eff) 42e/2  (isolated + non-isolated) ET > 19 GeV 51 muon + 1 isolated e/  pT > 7 GeV/c, ET > 17 GeV 6total transverse energy ET > 800 GeV 7missing transverse energy ET > 250 GeV 8 1 central jet ET > 250 GeV 9 1 forward jet ET > 250 GeV 10 1 tau jet ET > 106 GeV (101 GeV @ 95% eff) 11 2 central jets ET > 200 GeV 12 2 forward jets ET > 200 GeV 13 2 tau jets ET > 72 GeV (67 GeV @ 95% eff) 14 3 central jets ET > 110 GeV 15 3 forward jets ET > 110 GeV 16 3 tau jets ET > 70 GeV 17 4 central jets ET > 95 GeV 18 4 forward jets ET > 95 GeV 19 4 tau jets ET > 50 GeV 20 1 muon + 1 central jet pT > 14 GeV/c, ET > 40 GeV 21 1 muon + 1 forward jet pT > 14 GeV/c, ET > 40 GeV 22 1 muon + 1 tau jet pT > 12 GeV/c, ET > 30 GeV 23 1 muon + missing energy pT > 16 GeV/c, ET > 80 GeV 24 1 isolated e/  + 1 central jet ET > 25 GeV, ET > 52 GeV 25 1 isolated e/  + 1 forward jet ET > 25 GeV, ET > 52 GeV 26 1 isolated e/  + 1 tau jet ET > 20 GeV, ET > 57 GeV 27 1 isolated e/  + missing energy ET > 25 GeV, ET > 150 GeV 28 1 central jet + missing energy ET > 113 GeV, ET > 70 GeV 29 1 forward jet + missing energy ET > 113 GeV, ET > 70 GeV 30 1 tau jet + missing energy ET > 60 GeV, ET > 60 GeV Actual High Luminosity Trigger Menu in ORCA

8 CMS Week, March 2005 C. - E. Wulz8 Global Trigger options in ORCA Parameters Name Description Default L1GlobalTrigger:TriggerMenu Trigger menu lumi2x1033 L1GlobalTrigger:Mask Disable some L1 GT algos 0 (128 bits, "1" at bit nr. N disable algo nr. N) L1GlobalTrigger:InputMask Enable/Disable Trigger Object inputs 3 (Enable all inputs ==> InputMask = 3) (Disable Global Calorimeter Input only ==> InputMask = 2) (Disable Global Muon Input only ==> InputMask = 1) L1GlobalTrigger:Algorithm Adding one algorithm to the default ones "” e.g. The user can choose between these two trigger tables by setting a parameter in the.orcarc file: L1GlobalTrigger:TriggerMenu = lumi2x1033 or L1GlobalTrigger:TriggerMenu = lumi1034

9 CMS Week, March 2005 C. - E. Wulz9 Current Setup Tool WriteThresholds # MU_xx Identifier for a Muon Particle block # EL_xx Identifier for a Electron/Gamma Particle block # IE_xx Identifier for a Isolated Electon/Gamma Particle block # CJ_xx Identifier for a Central Jet Particle block # FJ_xx Identifier for a Forward Jet Particle block # TJ_xx Identifier for a Tau Jet Particle block # EM_xx Identifier for a Transverse Missing Energy Particle block # ET_xx Identifier for a Total Transverse Energy Particle block # JN_xx Identifier for a Jet Counting Particle block For istance, if you wish to require a lepton (muon or electron) plus Missing Energy, the algorithm looks like +MU_00+EM_02|+EL_00+EM_02; It is intended to change over to a tool using xml files as in HLT, which will include also the possibility of topological conditions. A trigger algorithm is a logical combination of different Particle Condition blocks. A tool exists to set up algorithms and thresholds, based on these blocks:

10 CMS Week, March 2005 C. - E. Wulz10 Adding algorithms 1. Adding one algorithm to the default trigger table using the L1GlobalTrigger:Algorithm parameter in.orcarc file L1GlobalTrigger:Algorithm = +MU_00+EM_02|+EL_00+EM_02; 2. cvs co Data/TriggerData/L1GlobalTrigger and create a new subdirectory (e.g. mytrigger). Provide an ASCII file (named "trigger_menu.dat") in this directory, one algorithm description per line; white lines and comment lines (preceded by "#") are allowed. Provide the corresponding threshold files which can be created with the application WriteThresholds. Finally you have to specify the new trigger table in your.orcarc file: L1GlobalTrigger:TriggerMenu = mytrigger For PTDR studies more algorithms exploiting the full potential of the Global Trigger should be put in. Thresholds should also be updated if feasible.

11 CMS Week, March 2005 C. - E. Wulz11 Summary The basic Global Trigger ORCA software exists. There is still work to be done to expand the trigger menu possibilities, to switch to xml based input and to fix a few bugs at the same time. Thresholds and algorithms should be updated for the PTDR.

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