Some D0 Meeting December 2003 Muon Isolation Update Ken Johns University of Arizona.

Slides:



Advertisements
Similar presentations
LHC monojet measurements and interpretations David Berge, CERN, ATLAS Measurements by ATLAS and CMS ADD interpretations WIMP interpretations.
Advertisements

Measuring the bb cross- section using B  D o X   decays Liming Zhang & Sheldon Stone Syracuse University.
Search for Top Flavor Changing Neutral Current Decay t → qZ Ingyin Zaw DOE Review August 21, 2006.
Anne Dabrowski Northwestern University Collaboration Meeting 22 nd February 2005 Update Kmu3 Branching Ratio measurement A. Dabrowski, February
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.
Validation of DC3 fully simulated W→eν samples (NLO, reconstructed in ) Laura Gilbert 01/08/06.
1 previously, when I calculated event selection efficiencies, I defined efficiencies as the following: efficiency in electron channel = (total number of.
The Matrix Method Data-driven method of estimating the W→lv and QCD multijet contributions to sample S’.
Top Turns Ten March 2 nd, Measurement of the Top Quark Mass The Low Bias Template Method using Lepton + jets events Kevin Black, Meenakshi Narain.
Kevin Black Meenakshi Narain Boston University
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.
Dimuon Channel ( Z  μμ ) L uminosity ~180 pb -1 (recorded) 2 isolated muons with both having matching central tracks |η μ | 15 GeV 65.0 < M μ 1 μ 2
Update on Pileup Ken Johns, Venkat Kaushik, Xiaowen Lei, Mario Aletti (U. Arizona)
A Method to measure  + /   detection efficiency asymmetry at LHCb Liming Zhang 08/15/07.
Some D0 Meeting December 2003 Muon Isolation Update Ken Johns University of Arizona.
Measuring the bb cross- section using B  D o X   decays Liming Zhang & Sheldon Stone Syracuse University.
Data results for inclusive all-hadronic (RA  with 318 nb -1 SUSY Hadronic/GMSB Meeting [C. Rogan et al.] Data Plots Towards.
H->ZZ->4l Update Trying to re-do CSC note: MC Sample Trigger Eff. Electron Selection Eff. Muon Selection Eff.
H → ZZ →  A promising new channel for high Higgs mass Sara Bolognesi – Torino INFN and University Higgs meeting 23 Sept – CMS Week.
10 TeV Updates on Efficiencies and Event Shapes Ken Johns, Venkat Kaushik, Xiaowen Lei (U. Arizona) Single lepton + jets channel.
Sung-Won Lee 1 Study of Hadronic W Decays in the Jets + MET Final LHC Kittikul Kovitanggoon * & Sung-Won Lee Texas Tech University Michael Weinberger.
1 2vtx tagged diBjets mass cross section measurement Univeristy of Notre Dame Hong Luo Mar 3 th 2005.
W+jets and Z+jets studies at CMS Christopher S. Rogan, California Institute of Technology - HCP Evian-les-Bains Analysis Strategy Analysis Overview:
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)
Quarkonia spectra in PbPb at 2.76 TeV Abdulla Abdulsalam (Dr. Prashant Shukla) BARC, Mumbai Outline Motivation Event selection Kinematic cuts Acceptance.
Status of Muon Trigger Efficiency Measurement for ICHEP Benedikt Hegner, Benjamin Klein, Yvonne Küssel, Patricia Lobelle, Markus Marienfeld, Rahmat Rahmat,
Study of L1 and HLT efficiency in VBTF Monika Jindal (Panjab University, Chandigarh) Jasbir Singh (panjab University, Chandigarh), Kajari Mazumdar (TIFR,
1 Silke Duensing DØ Analysis Status NIKHEF Annual Scientific Meeting Analysing first D0 data  Real Data with:  Jets  Missing Et  Electrons 
Tth study Lepton ID with BDT 2015/02/27 Yuji Sudo Kyushu University 1.
Mark Dorman UCL/RAL MINOS Collaboration Meeting Fermilab, Oct. 05 Data/MC Comparisons and Estimating the ND Flux with QE Events ● Update on QE event selection.
Current Analysis Activity/Results (Only brief overview) Sunil Bansal (Panjab University, Chandigarh) Approved results marked.
Search for the  + in photoproduction experiments at CLAS APS spring meeting (Dallas) April 22, 2006 Ken Hicks (Ohio University) for the CLAS Collaboration.
E. Soldatov Tight photon efficiency study using radiative Z decays (update) E.Yu.Soldatov 1, 1 National Research Nuclear University “MEPhI” Outline:
Search for High-Mass Resonances in e + e - Jia Liu Madelyne Greene, Lana Muniz, Jane Nachtman Goal for the summer Searching for new particle Z’ --- a massive.
Mike HildrethEPS/Aachen, July B Physics Results from DØ Mike Hildreth Université de Notre Dame du Lac DØ Collaboration for the DØ Collaboration.
1 Measurement of the Mass of the Top Quark in Dilepton Channels at DØ Jeff Temple University of Arizona for the DØ collaboration DPF 2006.
A search for the ZZ signal in the 3 lepton channel Azeddine Kasmi Robert Kehoe Southern Methodist University Thanks to: H. Ma, M. Aharrouche.
Status Update: Search for Low Mass Strings at CMS Andy Yen.
Study of B s         Supreet Pal Singh Prof. Kajari Mazumdar Prof. J.B.Singh 1India-CMS Meeting 27th-28th.
Z  BF using  hadronic events Silke Duensing Aug 8th, 2003.
Thursday, March 13th Z   had Z  had Preselection Efficiencies (muon) Backgrounds + Cuts Trigger Back to the Tau..and what remains to.
The Univ. of Tokyo Dept. of Physics 1 New MT method to remove SUSY contaminations CSC Note 1&2 : 27 Aug 2007 Ginga Akimoto, Y. Kataoka, S. Asai The University.
Fixing Tau HLT (Part 1.5/2) ‏ M.Bachtis. 2 L1 Seeding Fix L1: Seeding with High Et Jet paths to increase efficiency with High Et Still using corrected.
Atautau  lh Carlos Solans TileCal Valencia meeting 20th September 2007.
I'm concerned that the OS requirement for the signal is inefficient as the charge of the TeV scale leptons can be easily mis-assigned. As a result we do.
LCFI physics studies meeting, 7 th December 04Sonja Hillertp. 1 Charge efficiency and leakage rates  purity vs efficiency plots give only part of the.
Mark Dorman UCL/RAL MINOS WITW June 05 An Update on Using QE Events to Estimate the Neutrino Flux and Some Preliminary Data/MC Comparisons for a QE Enriched.
H->WW->lνlν Analysis - Improvements and results - - Data and MC - Higgs Working group meeting, 6 January 2011 Magda Chełstowska & Rosemarie Aben.
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.
E. Soldatov Tight photon efficiency study using FSR photons from Z  ll  decays E.Yu.Soldatov 1, 1 National Research Nuclear University “MEPhI”
Some introduction Cosmics events can produce energetic jets and missing energy. They need to be discriminated from collision events with true MET and jets.
Erik Devetak Oxford University 18/09/2008
15/11/11 LHCb Liverpool Meeting
b-ID: p17 certification Version 1.0
Efficiency of Muon Reconstruction
b-ID: p17 certification: Version 1.1 seems solid so far
Where's the Higgs? EW variables sensitive to mH via radiative corrections mH114.4 GeV.
Venkat Kaushik, Jae Yu University of Texas at Arlington
Philippe Doublet, LAL Roman Pöschl & François Richard, LAL
2016 MET triggers for VH analysis
b-ID Four taggers currently being worked on for p13
Generation of samples for VBF H0-->ZZ*-->bbll
Last update at the RPVLL meeting:
Samples and MC Selection
Study of Hb`b, c`c and gg in the `H channel
Study of Hb`b, c`c and gg in the `H channel
Susan Burke, University of Arizona
A brief Update on secondary vertex tagged jets
Presentation transcript:

Some D0 Meeting December 2003 Muon Isolation Update Ken Johns University of Arizona

Some D0 Meeting December 2003 Z, Zj, Zjj Data = “Signal”  Sample u Emily Z skim u Cuts  Good vertex  2 muons with P T > 15 GeV/c  1 isolated muon  Same vertex  Muon phi (highest P T ) – metphi < 165 degrees  Corrected MET < 15 GeV  75 < dimu mass < 105 GeV/c 2  0, 1, >1 jets with E T > 20 GeV u Look at distributions of the “other” muon

Some D0 Meeting December 2003 bb p13 Data = “Background”  Sample u Dimu p13 skim u Cuts  Good vertex  2 muons with P T > 6 GeV/c  // ΔR > 0.5 between the two muons  1 muon with an associated jet  Same vertex  Muon phi (highest P T ) – metphi < 165 degrees  Corrected MET < 15 GeV  0 < dimu mass < 70 GeV/c 2  >1 jets with E T > 20 GeV u Look at distributions of the “other” muon

Some D0 Meeting December 2003 bb rat efficiency = f(Ptmu)  Rat == Halo11 / Ptmu u Let Ptmu = 6, 10, 12, 15 GeV/c u Define Rat cut where background efficiency = 10%  6 GeV/c = 0.32  10 GeV/c = 0.30  12 GeV/c = 0.28  15 GeV/c = 0.25 u => Only slowly varying with Ptcut u => But other isolation variables change slightly with Ptmu cut as well (statistics?)

Some D0 Meeting December 2003 Signal Efficiency  Signal efficiency for 10% background (bb) efficiency u Use 12 GeV/c cut sample for bb background (more statistics than 15 GeV/c) u (Arbitrarily) set background efficiency to 10%  Halo11 efficiency for signal = 75%  Trkpt efficiency for signal = 50%  Rat efficiency for signal = 92%  dR efficiency for signal = 75% u Rat still in the running as isolation variable u Note dR inefficiency as well  n.b. previous efficiencies used Ptmu = 6 GeV/c to determine bb cut points

Some D0 Meeting December 2003 p14 Zjj Data-MC Isolation Comparison  Pick signal efficiency = 90%  Ask what cut value gives this efficiency u Here Ptmu cut = 15 GeV/c u Halo11  Data = 6.4, MC = 3 u Trkpt  Data = > 10, MC = 4 u Rat  Data = 0.35, MC = 0.1

Some D0 Meeting December 2003 Zjj Data – Halo 11

Some D0 Meeting December 2003 Zjj MC – Halo11

Some D0 Meeting December 2003 Zjj Data – Trkpt

Some D0 Meeting December 2003 Zjj MC– Trkpt

Some D0 Meeting December 2003 Zjj Data – Rat

Some D0 Meeting December 2003 Zjj MC – Rat