RUN 1B TRIGGER HISTORY This list is an attempt to keep a comprehensive list of the evolution of the trigger list during run 1b. V8.2 Released: 18 January 1994 First Used: 19 January 1994 - Run 73725 Changes from V8.1 1) Added Diaster Stream - Filters: MU_2_LO_JET, MU_2_HIGH, MU_3_HIGH, EM1_EISTRKCC_MS, EM1_GIS_HIGH, EM2_EIS_HI, EM2_ELE_EMF_MS, ELE_JET_MAX, MU_ELE, DIELE_MU, DIMU_ELE, MU_JET_MAX, MISSING_ET_MAX, JET_MAX 2) Removed Trigger Tower Eta -20 and +20 from EM reference sets. 3) Changed name of EM1_EIS-TRKCC_MS to EM1_EISTRKCC_MS. 4) Changed name of EM1_EIS0-6_MS to EM1_EIS06_MS. 5) EM1_GIS divided into 2 trigger: EM1_GIS with threshold lowered to 25 (from 30) and a level 2 prescale of 10 added. EM1_GIS_HIGH with a threshold of 40 GeV Et. 6) Added EM1_GIS_MAX with a threshold of 50 GeV Et for GM stream. 7) Changed name of EM1_ELE-TRK_MON to EM1_ELETRK_MON. 8) For EM_3_LOW, raise threshold from 7 to 10. 9) Changed name of EM2_EIS_TRKCC to EM2_EISTRKCC_EIS. 10) For ELE_JET_HIGH, raised MS threshold from 13 to 14. 11) For MU_JET_HIGH and MU_JET_NOCAL, raised MU threshold from 8 to 10. 12) For JET_MULTI_X, add requirement jets have |eta|<2.5. 13) Changed name of ELE-TRK_1_MON to ELETRK_1_MON. 14) For JET_1_VETO, l2jt(2, 15, veto=true) to l2jt(2, 20, veto=true). Modifications: 18 January 1994 -- Changed all electron tracking so that tracking is done in CDC (CC_ONLY). In V8.1, no electron tracking was done. Those filters with electron in FCD and requiring tracking there are passed. 18 January 1994 -- Removed L2 confirmation of L1.5 muon with low threshold muon. L2 production executable at this time does not pass low threshold L1.5 muons. V8.2.1 -- Changes as of Run 73804 20 January 1994 -- Remove l0_mi_flag_1 from triggers requiring single interactions (MU_1_EM_JET, MU_1_LO_JET, MU_2_LO_JET, MU_2_LOW & JET_GAP) 20 January 1994 -- Modified L2SETUP in MU_1_EM_JET to drop MUOH_MUHP_SAMH_CAEP instead of MUHT_CAEP. V8.2.2 -- Changes as of Run 73854 21 January 1994 -- For LT triggers, change seed towers from JT(1,3) to LT(1,6). This is triggers: MU_1_EM_JET, MU_1_LO_JET, MU_2_LO_JET, MU_2_JET_MON, JET_CAL, JET_MULTI, JET_FAR_END, LJT_35, LJT_60, JET_MAX, JET_GAP V8.3 Released: 29 January 1994 First Used: 29 January 1994 - Run 74193 Changes from V8.2 1) Level 2 confirmation of muon includes L1.5 threshold. 2) L0 MI flag removed from triggers temporarily pending completion of Level 0 work. 3) gis_dijet - lower all thresholds to 15 GeV and require for gamma |eta|<1. 4) mu_jet_high becomes mu_jet_cal, mu_jet_nocal become mu_jet_high. 5) mu_jet_high, mu_jet_nocal, mu_jet_max filter now required for jet, |eta|<2.5. 6) remove eta cut on all jets for top bkg triggers, ele_jet_4_bkg, ele_jet_5_bkg, jet_4_mon, jet_3_mon, jet_4_em and jet_5_em. 7) for l2mu, set track in road for each filter. 8) em2_ele_emf_ms, raise threshold to MS(14), change EMF jet to 0.7 cone and EMPCT_MIN=60.0. 9) Triggers mu_1_em_jet & mu_1_lo_jet, LJ(1,12) -> LJ(1,10). 10) Triggers mu_2_lo_jet & mu_2_jet_mon, LJ(1,10) -> LJ(1,8). 11) Trigger mu_2_low, MU(2,y3)MU(1,y2) to MU(2,y3). 12) jet_multi_3 becomes jet_3_multi. 13) jet_cal is eliminated. 14) for filters using L2mu, track_in_road parameter becomes: For y2 triggers track_in_road=CFALL_EFL10_WSL10_SXXX For y3 triggers track_in_road=CFALL_EFL10_WSL1A_SXXX For y4 triggers track_in_road=CFALL_EFL10_WSL1A_SL10 Modifications: V8.3.1 -- Changes as of Run 74197 29 January 1994 -- Removed SAMUS/SAMUS/WAMUS tracking overlap region. This changes WSL1A to WSL10. V8.3.2 -- Changes as of Run 74287 1 February 1994 -- jet_multi trigger - add JT(1,3) for list building. 1 February 1994 -- all muon filters - muon calorimeter confirmation available and used where noted. V8.4 Released: 19 Feb 1994 First Used: 22 Feb 1994 -- Run 75039 Changes from V8.3 1) Filter MU_1_LO_JET - Removed L2 Jet requirement. 2) JET_GAP is now prescaled at level 1. 3) JET_GAP_LOW - raised jet threshold from 15 to 18. 4) New Trigger JET_GAP_HDE on trigger bit 15. Trigger is same as JET_GAP. With following filters... a) JET_GAP_LHE = L2PS(15)JT(2,18,>1.6)DETA(4.0) b) JET_GAP_LME = L2PS(3)JT(2,18,>1.6)DETA(5.0) c) JET_GAP_HHE = L2PS(4)JT(2,25,>1.6)DETA(4.0) d) JET_GAP_HME = JT(2,25,>1.6)DETA(5.0) e) JET_GAP_MHE = JT(2,35,>1.6)DETA(4.0) 5) New Trigger JET_GAP_NMI on trigger bit 11. Trigger is LJ(2,12,x1.6),LJ(1,6). With the filter, JET_GAP_NMI, JT(2,25,>1.6)DETA(4.0). 6) Trigger Bit #9. Now Trigger MU_1_JET_MON, MU(1,y4)LJ(1,10)LJ(1,6) With the filter, MU_1_JET_MON, MU(1,3,best,Ncal) 7) MU_1_BEST filter dropped from list. Note This trigger list is being release without MI flag in triggers requiring it due to Level 0 problems. V8.5 Released: 24 Feb 1994 22:00 First Used: 24 Feb 1994 22:00 -- Run 75143 Changes from V8.4 1) Added JUNK filters to trigger bits 2, 3, 4, 5 & 6. These are for monitoring the amount of events passed by L2 due to MUD1 banks larger than 8000 words. The filters are: a) Off L1 bit 2... JUNK_1_LO_JET = MU(1,1.0e6,best) b) Off L1 bit 3... JUNK_2_LO_JET = MU(1,1.0e6,best) c) Off L1 bit 4... JUNK_2_LOW = MU(1,1.0e6,best) d) Off L1 bit 5... JUNK_1_MAX = MU(1,1.0e6,best) e) Off L1 bit 6... JUNK_2_HIGH = MU(1,1.0e6,best) Modifications: V8.5.1 -- Changes as of Run 75179. 25 February 1994 -- New L2 Executable to fix muon L2 problem. Probably little effect on data passed. V8.5.2 -- Changes as of Run 75404. 2 March 1994 -- Removed micro-blank from triggers EM_2_MED, EM_JET and JET_MULTI. Same as in V7.4 of trigger list. V8.6 Released: 20 March 1994 First Used: 20 March 1994 -- Run 76177 Changes relative to V8.5 1) Remove MU_1_EM_JET from Trigger Bit 1. 2) Add Jet_30 (Trigger & Filter)to Trigger Bit 1. L1 = LJ(1,15)LJ(1,6), L2 = JT(1,30) 3) Remove filter MU_3_LOW from MU_2_LOW (trigbit 4) 4) Filter MU_1_HIGH - Add calorimeter confirmation to L2MU. 5) Filter MU_1_MON - Add L2PS(20). 6) Remove filter MU_3_HIGH from MU_2_HIGH (trigbit 6) 7) Add filter MU_2_MED to MU_2_HIGH (trigbit 6). MU_2_MED = MU(1,7,best/cos/cal)MU(2,5,best/cos/cal) 8) Change filter EM1_EIS_ESC to EM1_EISTRKCC_ESC. Now is EM(1,20,eis/trkcc)EM(1,16,esc) 9) Filter EM1_ELETRK_MON now uses 0.015,0.015 road for tracking. 10) Add filter EM1_2EISTRK_MS to EM_1_MAX (trigbit 7). EM1_2EISTRK_MS = em(1,12,eis)em(2,7,eis/trk)l2ms(7,0). 11) Remove Filter EM_3_LOW. 12) Add filter EM2_2EISTRK_MS to EM_2_MED (trigbit 8). EM1_2EISTRK_MS = em(2,7,eis/trk)l2ms(7,0). 13) Remove Filters DIELE_MU & DIMU_ELE from MU_EM_1 (trigbit 13). 14) Add Filter MU_EIS to MU_EM_1 (trigbit 13). MU_EIS = em(1,7,eis/trk)mu(1,5,best/cos/cal). 15) Add filter JET_2_MISS_MON to JET_3_MISS. JET_2_MISS_MON = L2PS(20)JT(1,25)JT(2,10)MS(25) 16) Filter JET_1_VETO. Add em fraction requirement and raise missing Et cut. JET_1_VETO = JT(1,20,0.080.8) 5) Moved GIS_DIJET to EM_1_MAX. Added jet seed to EM_1_MAX. Increased eta coverage to 2.5 6) Bit 24 LJT_35 becomes LJT_25. Level 1 Large Tile Et threshold reduced from 35 to 25. Now Level 1 = LJ(1,25)LJ(1,6). 7) Bit 25 LJT_60 becomes LJT_35. Level 1 Large Tile Et threshold reduced from 60 to 35. In addition, 2 seed tiles are new required instead of the previous one. Now Level 1 = LJ(1,25)LJ(2,6). 8) Bit 26, LJT_MAX is modified in same manner as Bit 25. Now Level 1 = LJ(1,25)LJ(2,6). 9) W->jj filter added. EM2_WJJ hangs from EM_2_MED. EM2_WJJ = JT(2,15,0.5,emf>85%,|eta|<2.0)MASS(jet,45,lead) 10) Modify filter MISSING_ET_MAX threshold to 100 GeV. 11) Modify Jet threshold for filter JET_140 to 160. Now JET_160. 12) Removed trigger MU_2_LOW_Y4 from gm stream. 13) Changed cone size to 0.7 on jet_3_multi. 14) Changed L2 prescales of filter handing off JET_GAP_HDE (bit15) and increased L1 prescale. a) jet_gap_hhe - removed l2 prescale. b) jet_gap_lhe - changed l2 prescale to 10. c) jet_gap_lme - changed l2 prescale to 2. 15) Added pass_1_of for l2 monitor stream. 16) Changed JET_2_MISS to include ACOL_JETS tool, changed jet thresholds Filter is now JT(1,25)JT(2,10)MS(25,0)ACOL_JETS(ISO=0.25). V8.7.1 Released 29 April 1994 -- Run 78040 Enabled CD hitfinding. This is now controlled via the prescale configuration files. Turned on for only 1.5e30 configuration. NO RAW DATA IS DROPPED. THIS SHOULD NOT EFFECT DATA TAKING AT ALL. V8.7.2 Released 3 May 1994 -- Run 78204 Stopped dropping of L2 CAEP bank per request of L2 group. THIS SHOULD NOT EFFECT DATA TAKING AT ALL. V8.7.2b - 9 May 1994 -- Run 78432 L2 executable STP change... Now using Slow Z Vertex at L2 V8.7.2c - Released 19 May 1994 -- Run 79055 L2 executable STP change. Now SAMUS tracking code will work. Hasn't since 26-Mar-1994. Also new WAMUS constants. V8.7.3 Released 26 May 1994 -- Run 79405 1) Add L0 MI Flag (flag=1) to triggers MU_1_LO_JET, MU_2_LOW, and MU_2_LOW_Y4. 2) Change prescale on MU_1_HIGH from 1 to 2 @ L=8e30 and 2 to 5 @ L=11e30. 3) Eliminate prescales on MU_1_LO_JET at L < 11e30. Set prescale for L = 11e30 to 2. 4) Begin dropping L2 CAEP Bank again. 5) Reduce L2 prescale on ELE_JET_4_BKG V8.7.3a 5/29/94 run 79479, level 2 exe 6.10 V9.0 Changes from V8.7.3. 1) Begin use of active veto. Here is list of veto terms for each level 1 trigger bit. good_cal = mr_veto_high + mr_veto_low TrigBit Name Veto Terms 0 test trigger 1 jet_30 mrbs + ublank 2 mu_1_lo_jet mrbs + ublank 3 mu_2_low_y4 mrbs + ublank 4 mu_2_low mrbs + ublank 5 mu_1_high mrbs + ublank 6 mu_2_high mrbs + ublank 7 em_1_max good_cal 8 em_2_med mr_veto_high 9 mu_1_low mrbs + ublank 10 em_1_miss good_cal 11 jet_gap_nmi mrbs + ublank 12 em_jet mr_veto_high 13 mu_em_1 good_cal 14 mu_jet_high good_cal 15 jet_gap_hde mrbs + ublank 16 jet_multi mr_veto_high 17 jet_min mrbs + ublank 18 jet_2_med mrbs + ublank 19 em_1_mon good_cal 20 missing_et mrbs + ublank 21 jet_3_miss mrbs + ublank 22 jet_1_miss mrbs + ublank 23 jet_far_end mrbs + ublank 24 ljt_25 mrbs + ublank 25 ljt_35 mrbs + ublank 26 jet_max good_cal 27 jet_gap mrbs + ublank 28 zero_bias mr_veto_high In Trigger List, new column for veto term. Veto Terms are define as: MaxLive = mr_veto_high GoodCal = mr_veto_high + mr_veto_low MuRecover = mr_veto_high + mr_veto_low + hv_recovery GoodBeam = mrbs + ublank 2) Drop filter MU_JET_BACK (Trigger MU_JET_HIGH) 3) Change L2 threshold of filter EMJET_15 (Trigger JET_MIN). This filter is now JT(1,20,0.3,emf>0.8). Name also changes to EMJET_20. 4) Add filter JET_MS_MULTI off of trigger JET_MULTI. Filter is JT(4,12,0.3,<2.5)MS(10,0). 5) New Filter JET_30_GMS (trigger bit 1). Filter is L2PS(12)JT(1,30). 6) New Filter JET_50_GMS (trigger bit 24). Filter is L2PS(8)JT(1,50). 7) Increase L2 Prescale of EM1_ELETRK_MON (Trigger EM_1_MAX) from 5 to 10. 8) Reduced L2 Prescale of ELE_1_MON (Trigger EM_1_MON) from 1 to 2. V9.0.0 - Released 9-Jun-1994 - Run 79983 ONLY Muon Triggers used GOOD_CAL as veto condition (not MRBS_LOSS + MICROBLANK). These are triggers MU_1_LO_JET, MU_2_LOW, MU_2_LOW_Y4, MU_1_HIGH, MU_2_HIGH, & MU_1_LOW (trigger bits 2, 4, 3, 5, 6, and 9 respectively.) V9.0.1 - Released 10-Jun-1994 - Start Run 79984. Muon Triggers listed above use veto condition MRBS_LOSS + MICROBLANK as shown in the trigger list. V9.0.2 - Released 27-Jun-1994 - Start Run 80849 Remove JET_MULTI_X from GM stream. V9.0.3 - Released 14-Jul-1994 - Start Run 81578. Replace MR_VETO_HIGH in Veto Scheme by MRBS_LOSS & MIRCOBLANK (and/or term MRBS_AND_MIRCOBL). This changes MAX_LIVE to MRBS_AND_MIRCOBL and GOOD_CAL to MRBS_AND_MIRCOBL or MR_VETO_LOW. Veto Terms in Trigger List Now Coorespond to: MaxLive = mrbs_and_microbl GoodCal = mrbs_and_microbl + mr_veto_low GoodBeam = mrbs + ublank V9.0 Changes from V9.0.3 1) Eta Coverage Trigger JET_MULTI change from entire detector eta to |eta| < 2.4. Now trigger is LJ(3,15,<2.4)LJ(1,6)JT(1,3). 2) Trigger JET_1_MISS changed to JT(1,7,<2.6)MS(16)JT(1,3)L0(1) 3) Filter JET_1_VETO (hanging off Trigger JET_1_MISS) becomes JET_1_TAU... Now filter script is: JT(1,20,0.05