Presentation is loading. Please wait.

Presentation is loading. Please wait.

Update Apr 24, 2007 Erik Brubaker FTK meeting. April 24, 2007FTK Meeting2 LVL1/LVL2 jet triggers Set trigger thresholds according to TDR scheme. E.g.,

Published by Modified over 8 years ago

Similar presentations

Presentation on theme: "Update Apr 24, 2007 Erik Brubaker FTK meeting. April 24, 2007FTK Meeting2 LVL1/LVL2 jet triggers Set trigger thresholds according to TDR scheme. E.g.,"— Presentation transcript:

1 Update Apr 24, 2007 Erik Brubaker FTK meeting

2 April 24, 2007FTK Meeting2 LVL1/LVL2 jet triggers Set trigger thresholds according to TDR scheme. E.g., 65 GeV(TDR)  40 GeV(LVL1)  60 GeV(LVL2). LVL2 now has significant effect on signal efficiency. With FTK, LVL2 can have loose energy cuts; tagging requirement makes up x2 factor easily. No FTK scenario:

3 April 24, 2007FTK Meeting3 Hidden Valley process Representative scenario: –m H =100 GeV; m A =40 GeV;  A =333 ps; BR=0.1. No FTKWith FTK LVL14j@40 GeV4j@25 GeV LVL24j@57 GeV4j@38 GeV Jets 2 jets: |  | 15, m jj >20 GeV. Vertexing2 verts: r 1 cm

4 April 24, 2007FTK Meeting4 Hidden Valley signal survival With FTK, x8 more signal events accumulate in this scenario. Background very hard— resolutions, accidentals, not present in ATLFAST…

5 April 24, 2007FTK Meeting5 H->hh->4b process Default cuts too tight and/or miscalibrated. With FTK (LVL1 25 GeV cut) StartLVL14 btagsM_h cutM_H cut # Events1e+0629930046172.1430 Cut eff. 0.2990.01540.0004640 No FTK (LVL1 40 GeV cut) StartLVL14 btagsM_h cutM_H cut # Events1e+0680490255.51.3770 Cut eff. 0.08050.003170.005390 Getting back to my original process:

6 April 24, 2007FTK Meeting6 Background @ LVL1/LVL2 Using sherpa samples, 2->2+3+4 with y t =25 GeV. LVL1 rates slightly low compared to TDR, but OK. Can reproduce TDR x2 rate reduction at LVL2! Need real FTK efficiency/fake rate here!

7 April 24, 2007FTK Meeting7 To do Hidden Valley –Plot or table for different model points showing # of events expected/yr Factor improvement with FTK –Try to understand b-enriched background as discussed in earlier meetings Setting up sherpa on UC tier3 cluster H->hh->4b –Store results for different trigger cuts in one pass –Develop looser set of cuts –Use FTK b-tagging efficiency/fake estimates –For 8 model points, optimize trigger requirements for S/sqrt(S+B) assuming FTK & no FTK

Download ppt "Update Apr 24, 2007 Erik Brubaker FTK meeting. April 24, 2007FTK Meeting2 LVL1/LVL2 jet triggers Set trigger thresholds according to TDR scheme. E.g.,"

Similar presentations

ATLAS ATLAS PESA Meeting 25/04/02 B-Trigger Working Group Work-plan This talk:

ATLAS ATLAS PESA Meeting 25/04/02 B-Trigger Working Group Work-plan This talk:
STAR Status of J/  Trigger Simulations for d+Au Running Trigger Board Meeting Dec5, 2002 MC & TU.

STAR Status of J/  Trigger Simulations for d+Au Running Trigger Board Meeting Dec5, 2002 MC & TU.
UK egamma meeting, Sept 22, 2005M. Wielers, RAL1 Status of Electron Triggers Rates/eff for different triggers Check on physics channels Crack region, comparison.

UK egamma meeting, Sept 22, 2005M. Wielers, RAL1 Status of Electron Triggers Rates/eff for different triggers Check on physics channels Crack region, comparison.
H/Abb -> 4b’s process & Multi-Et-Threshold Study for 4jet Trigger Kohei Yorita Young-Kee Kim University of the FTK Meeting on July 13 th, 2006.

H/Abb -> 4b’s process & Multi-Et-Threshold Study for 4jet Trigger Kohei Yorita Young-Kee Kim University of the FTK Meeting on July 13 th, 2006.
 Trigger for Run 8 Rates, Yields, Backgrounds… Debasish Das Pibero Djawotho Manuel Calderon de la Barca Analysis Meeting BNL October 16, 2007.

 Trigger for Run 8 Rates, Yields, Backgrounds… Debasish Das Pibero Djawotho Manuel Calderon de la Barca Analysis Meeting BNL October 16, 2007.
FTK H->  update Catalin, Tony. Recap - slides 2-9.

FTK H->  update Catalin, Tony. Recap - slides 2-9.
1  trigger optimization in CMS Tracker Giuseppe Bagliesi On behalf of  tracking group Workshop on B/tau Physics at LHC Helsinki, May 30 - June 1, 2002.

1  trigger optimization in CMS Tracker Giuseppe Bagliesi On behalf of  tracking group Workshop on B/tau Physics at LHC Helsinki, May 30 - June 1, 2002.
Some D0 Meeting November 2003 Muon Isolation Studies Ken Johns University of Arizona.

Some D0 Meeting November 2003 Muon Isolation Studies Ken Johns University of Arizona.
Emily Thompson May 5 – UMass HEP Exp Group Meeting 1 Tag-probe method: Fitting Z → μ + μ - mass peaks Motivation: 1. Want to use long p T tail of muon.

Emily Thompson May 5 – UMass HEP Exp Group Meeting 1 Tag-probe method: Fitting Z → μ + μ - mass peaks Motivation: 1. Want to use long p T tail of muon.
VBF H  Progress Report Catalin & Tony February 21, 2007.

VBF H  Progress Report Catalin & Tony February 21, 2007.
Ke2 and Kmu2 Mengkai Shieh Northwestern University.

Ke2 and Kmu2 Mengkai Shieh Northwestern University.
FTK Studies: H  hh  bbbb FTK Physics Case Meeting 11/03/05 Erik Brubaker University of Chicago.

FTK Studies: H  hh  bbbb FTK Physics Case Meeting 11/03/05 Erik Brubaker University of Chicago.
FTK Production on UC Tier3 and Hidden Valley Processes Jan 23, 2007 Erik Brubaker FTK meeting.

FTK Production on UC Tier3 and Hidden Valley Processes Jan 23, 2007 Erik Brubaker FTK meeting.
Progress on the FTK Physics Case (For H/Abb 4b signal) Kohei Yorita Young-Kee Kim University of FTK Meeting on January 26 th, 2006 (1)Brief Sample.

Progress on the FTK Physics Case (For H/Abb 4b signal) Kohei Yorita Young-Kee Kim University of FTK Meeting on January 26 th, 2006 (1)Brief Sample.
Progress on H/Abb -> 4b’s channel for the FTK physics case ~ 4jets trigger w/ and w/o FTK ~ Kohei Yorita Young-Kee Kim University of the FTK.

Progress on H/Abb -> 4b’s channel for the FTK physics case ~ 4jets trigger w/ and w/o FTK ~ Kohei Yorita Young-Kee Kim University of the FTK.
The Matrix Method Data-driven method of estimating the W→lv and QCD multijet contributions to sample S’.

The Matrix Method Data-driven method of estimating the W→lv and QCD multijet contributions to sample S’.
Update on Tools FTK Meeting 06/06/06 Erik Brubaker U of Chicago.

Update on Tools FTK Meeting 06/06/06 Erik Brubaker U of Chicago.
Progress on jet trigger response functions FTK Physics Case Meeting 04/21/05 Erik Brubaker University of Chicago.

Progress on jet trigger response functions FTK Physics Case Meeting 04/21/05 Erik Brubaker University of Chicago.
Update on H/Abb -> 4b’s process (4jet Trigger) Kohei Yorita Young-Kee Kim University of the FTK Meeting on Sep. 7 th, 2006.

Update on H/Abb -> 4b’s process (4jet Trigger) Kohei Yorita Young-Kee Kim University of the FTK Meeting on Sep. 7 th, 2006.
Sept 30 th 2004Iacopo Vivarelli – INFN Pisa FTK meeting Z  bb measurement in ATLAS Iacopo Vivarelli, Alberto Annovi Scuola Normale Superiore,University.

Sept 30 th 2004Iacopo Vivarelli – INFN Pisa FTK meeting Z  bb measurement in ATLAS Iacopo Vivarelli, Alberto Annovi Scuola Normale Superiore,University.

Similar presentations

Ads by Google