1 / 5

Transition from global_CMT-11.03 to global_CMT-12.10

Kyle Stevenson Elizabeth Gallas Terry Toole Trigger Board Meeting July 8, 2003. Transition from global_CMT-11.03 to global_CMT-12.10. global_CMT over last week. 11.04 – online 10-May to July 2, one Run July 7 July 1,2 (Initial Luminosity about 20E30) 5 days with accelerator problems …

italia
Download Presentation

Transition from global_CMT-11.03 to global_CMT-12.10

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Kyle Stevenson Elizabeth Gallas Terry Toole Trigger Board Meeting July 8, 2003 Transition from global_CMT-11.03to global_CMT-12.10

  2. global_CMT over last week • 11.04 – online 10-May to July 2, one Run July 7 • July 1,2 (Initial Luminosity about 20E30) • 5 days with accelerator problems … • July 7 (Trigger verification run after many changes, access) • 12.10 online July 7,8 (2 Stores including current) • Smooth running with strong evidence of trigger problems effecting the trigger rates • L1 Cal (hot towers) • L3 cal: spikes, jumps, rises in L3 accept rate of JET triggers

  3. global_CMT-12.10 – Runs/Rates • 12.10 online July 7 and July 8 • 2 Stores incl. current store, Initial Luminosity ~30E30 Store Run LumI / PSFile PeakRates ( 1400 / 800 / 50 Hz) 2768 178721 30 / 30 700 / 460 / 45 (last run of 11.04) 178722 24 / 25 1700*/ 600 / 55* 178723 20 / 20 1400 / 550 / 60* 178724 17 / 17 1120 / 450 / 55* 2770 178733 31 / 30 1250 / 740 / 65* 178734 24 / 30 900 / 550 / 50 (L3 MET problem) 178735 22 / 20 1550 / 600 / 70* Summary: 12.10 current rates to tape are too high, require immediate prescale adjustments !!!

  4. Global_CMT-12.10 - problems • Run 178722 • L1 and L3 spike in all high ET Jet, MHT but not MET or EM ? • Spike in L1 magnified in L3 ??? • Lifetime just one or a few luminosity blocks • Weird correlated increase in feb with increase in rate • Suspect ? Increase occupancy in tracking increases candidates • Run 178733 • L1 hot tower addressed by Dan • Run 178734 • Jump and/or steady rise of high Et Jet, EM, MET, MHT L3 rates • See E1_SHT20, JT_95TT, MET and MJT triggers (but not lowest ET jets) • Continues over many luminosity blocks

  5. Global_CMT-12.– future • Dmitri/Arnd: Rate caps for version 12 • L1 / L2 / L3 Accept = 1400 / 800 / 50 Hz • L3 Calorimeter problems observed for JET triggers • May be other problems, these have cause most blatant rate problems • Rates are too high • Prescale changes based on data collected are being applied at L1 to control rate to tape • TM so far have changed only the 25E30.prescales • See the change.log for exact changes • This was because we expected it to be used in next store (this morning) • 25E30 file was skipped during store today (due shifter error) • Accepting input • Future: • No trigger change requests have been received from TB • %_IP Triggers (now disabled if not sharing a prescale) • xml change required – TMs are awaiting specifications • No triggers will change

More Related