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.,

Slides:

Advertisements

Similar presentations

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

Advertisements

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.

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.

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.

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.

VBF H  Progress Report Catalin & Tony February 21, 2007.

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 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 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’.

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.

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.

Progress on jet trigger response functions FTK Physics Case Meeting 06/16/05 Erik Brubaker University of Chicago.

S. Martí i García Liverpool December 02 1 Selection of events in the all-hadronic channel S. Martí i García CDF End Of Year Review Liverpool / December.

1 W’  tb  lnubb: the first read. 2 introduction sample: W’  tb  lnubb generator: PYTHIA number of events: 5000 will only use events in the good run.

Topological D-meson Reconstruction with STAR Using the Silicon Vertex Tracker (SVT) Sarah LaPointe Wayne State University SVT review, BNL, July 7 th /8.

Progress on FTK Studies FTK Physics Case Meeting 07/20/05 Erik Brubaker University of Chicago.

Current plans FTK meeting 2/23/06 F. Crescioli, P.Giannetti, M. Dell’Orso, G. Punzi, G.Volpi, + Cheng-Ju Lin.

Update FTK Meeting 07/13/06 Erik Brubaker U of Chicago.

Physics Studies Update FTK Meeting 02/23/06 Erik Brubaker U of Chicago.

Analysis Meeting – April 17 '07 Status and plan update for single hadron scale check with minimum bias events N. Davidson.

STAR J/  Simulations for RUN III Manuel Calderon for the Heavy-Flavor Group Analysis Meeting at BNL October 23, 2002.

H  FTK update Catalin, Tony FTK meeting, 9/7/2006.

Update on H  studies Catalin and Tony FTK meeting, July 13, 2006.

In order to acquire the full physics potential of the LHC, the ATLAS electromagnetic calorimeter must be able to efficiently identify photons and electrons.

Single Top Trigger Studies Top Trigger Meeting, 9 May Patrick Ryan, MSU Single Top Trigger Studies Top Trigger Meeting 9 May 2007 Patrick Ryan.

FTK update H→  Tony, Catalin By speeding up/adding rejection at LVL2, we can have a higher rate coming in from LVL1. Therefore some of the LVL1 threshold.

Dijet Mass Sherpa vs Pythia Multi-Threshold e.t.c. for H/Abb->4b’s Kohei Yorita University of Chicago FTK Meeting 12/19/2006.

Update FTK Meeting 05/02/06 Erik Brubaker U of Chicago.

H->ZZ->4l Update Trying to re-do CSC note: MC Sample Trigger Eff. Electron Selection Eff. Muon Selection Eff.

Trigger Menus Invisible Higgs input to trigger menus for initial running 4/9/2007 Invisible Higgs CSC Note meeting Ricardo Goncalo, RHUL.

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.

Archana Sharma, Suman Beri Panjab University Chandigarh India-CMS meeting TIFR, Jan Updates on the RPC trigger efficiency work with data driven.

September 30, 2004FTK meeting1 Making the FTK Physics Case M. Shochet 9/30/04.

Commissioning Studies Top Physics Group M. Cobal – University of Udine ATLAS Week, Prague, Sep 2003.

HERA-LHC, CERN Oct Preliminary study of Z+b in ATLAS /1 A preliminary study of Z+b production in ATLAS The D0 measurement of  (Z+b)/  (Z+jet)

1 Single top in e+jets channel Outline : - Data and MC samples - Overview of the analysis - Loose and topological cuts - MC efficiencies and expected number.

Tracey BerryTAPM Meeting June 25 th Triggers Tracey Berry Royal Holloway.

CPPM (IN2P3-CNRS et Université de la Méditerranée), Marseille, France Olivier Leroy, for the Marseille group Trigger meeting, CERN19 April 2004 b-tagging.

1 Update on tt-bar signal and background simulation Stan Bentvelsen.

EM resolutions from low to high energy Jan Stark, LPSC Grenoble CAT Force meeting, May 13 th, 2003.

Hggs-D meeting MPI 11/20061 Higgs Physics – Activities in Bonn/Siegen Jörn Große-Knetter ATLAS-Higgs-D Treffen München,

Tracey BerryTAPM Meeting June 25 th Triggers Tracey Berry Royal Holloway.

Feasibility study of Higgs pair creation in gamma-gamma collider Hiroshima University Nozomi Maeda 19.April 2009.

EPS Manchester Daniela Bortoletto Associated Production for the Standard Model Higgs at CDF D. Bortoletto Purdue University Outline: Higgs at the.

Viktor Veszpremi Purdue University, CDF Collaboration Tev4LHC Workshop, Oct , Fermilab ZH->vvbb results from CDF.

1 H → γγ analysis Maosen Zhou 02/04/ For the coupling measurement,the categories are chosen to probe different Higgs production models,such as.

Upsilon production and μ-tagged jets in DØ Horst D. Wahl Florida State University (DØ collaboration) 29 April 2005 DIS April to 1 May 2005 Madison.

ATLAS UK physics meeting, 10/01/08 1 Triggers for B physics Julie Kirk RAL Overview of B trigger strategy Algorithms – current status and plans Menus Efficiencies.

Τ HLTrigger Optimization Mike B 6 th Nov. 2 M. Bachtis - UW The tau High Level Trigger scheme in CMS For the events that pass the L1 Trigger jet reconstruction.

More technical description:

“Mission impossible IV: qqH→qqbb” Preliminary HLT

CDS comments on supporting note

B Tagging Efficiency and Mistag Rate Measurement in ATLAS

Hidden Valley Processes

Erik Brubaker U of Chicago

Physics Studies Update

J/Y Simulations for Trigger

Samples and MC Selection

Kohei Yorita Young-Kee Kim University of Chicago

Higgs  update Catalin and Tony May 22, 2007

Run and Luminosity dependence of p17 NN b-tag

Presentation transcript:

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., 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:

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 GeV GeV Jets 2 jets: |  | 15, m jj >20 GeV. Vertexing2 verts: r 1 cm

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…

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 Cut eff No FTK (LVL1 40 GeV cut) StartLVL14 btagsM_h cutM_H cut # Events1e Cut eff Getting back to my original process:

April 24, 2007FTK Meeting6 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!

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