Control plots at hadron level from official MC production

Slides:

Advertisements

Similar presentations

Effect of b-tagging Scale Factors on M bb invariant mass distribution Ricardo Gonçalo.

Advertisements

Interjet Energy Flow. Patrick Ryan, Univ. of Wisconsin Collaboration Meeting, June 6, Patrick Ryan University of Wisconsin Claire Gwenlan Oxford.

Low-p T Multijet Cross Sections John Krane Iowa State University MC Workshop Oct , Fermilab Part I: Data vs MC, interpreted as physics Part II:

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.

Validation of DC3 fully simulated W→eν samples (NLO, reconstructed in ) Laura Gilbert 01/08/06.

1 N. Davidson E/p minimum bias update with Athena Analysis Meeting 12 th June 2007.

1 N. Davidson, E. Barberio E/p single hadron energy scale check with minimum bias event Hadronic Calibration Workshop 26 th -27 th April 2007.

November 1999Rick Field - Run 2 Workshop1 We are working on this! “Min-Bias” Physics: Jet Evolution & Event Shapes  Study the CDF “min-bias” data with.

Using Track based missing Et tools to reject fake MET background Zhijun Liang,Song-Ming Wang,Dong liu, Rachid Mazini Academia Sinica 8/28/20151 TWiki page.

22. April 2004, New Phenomena MeetingChristian Autermann - Resonant Slepton Production1 Overview R-parity violating Supersymmetry Cross section and Run.

1 The Study of D and B Meson Semi- leptonic Decay Contributions to the Non-photonic Electrons Xiaoyan Lin CCNU, China/UCLA for the STAR Collaboration 22.

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

W + /W - and l + /l - A Means to investigate PDFs T. Schörner-Sadenius, G. Steinbrück Hamburg University HERA-LHC Workshop, CERN, October 2004.

Update on Diffractive Dijet Production Search Hardeep Bansil University of Birmingham Birmingham ATLAS Weekly Meeting 13/09/2012.

Diffractive Dijet Production Hardeep Bansil University of Birmingham SM Soft QCD topical meeting: Diffraction and Forward Detectors 24/05/2011.

Update on Diffractive Dijet Production Search Hardeep Bansil University of Birmingham Birmingham ATLAS Weekly Meeting 24/01/2013.

Muons from  /K CSC samples vs generator predictions: preliminary comparisons.

Update on Diffractive Dijets Analysis Hardeep Bansil Birmingham ATLAS Weekly Meeting 10/04/2014.

Hardeep Bansil, Oldrich Kepka, Vlastimil Kus, Paul Newman, Marek Tasevsky Workshop on Diffractive Analyses with ALFA 09/10/2012 Diffractive analyses with.

Beam Extrapolation Fit Peter Litchfield  An update on the method I described at the September meeting  Objective;  To fit all data, nc and cc combined,

A bin-free Extended Maximum Likelihood Fit + Feldman-Cousins error analysis Peter Litchfield  A bin free Extended Maximum Likelihood method of fitting.

Searches for Diffractive Dijet Production Hardeep Bansil University of Birmingham SM Soft QCD meeting 24/10/2011.

Diffractive Dijet Production Issues with Analysis Hardeep Bansil Birmingham Weekly ATLAS Meeting 15/09/2011.

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.

Diffractive Dijet Production with 2010 data Hardeep Bansil (1), Oldřich Kepka (2), Vlastimil Kůs (2), Paul Newman (1), Marek Taševský (2) (1) University.

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

Update on Diffractive Dijet Production Search Hardeep Bansil University of Birmingham Soft QCD WG Meeting 29/04/2013.

24/08/2009 LOMONOSOV09, MSU, Moscow 1 Study of jet transverse structure with CMS experiment at 10 TeV Natalia Ilina (ITEP, Moscow) for the CMS collaboration.

QCD Background Estimation From Data Rob Duxfield, Dan Tovey University of Sheffield.

Charged Particle Multiplicity, Michele Rosin U. WisconsinQCD Meeting May 13, M. Rosin, D. Kçira, and A. Savin University of Wisconsin L. Shcheglova.

Study for rejection of muons from p/K decays Sergio Grancagnolo Stefania Spagnolo Andrea Ventura.

Update on Diffractive Dijets Analysis Hardeep Bansil University of Birmingham Soft QCD / Diffraction WG Meeting 31/03/2014.

HG 5: Trigger Study for ttH, H→bb Catrin Bernius (UCL) CPPM, Genova, Glasgow, RAL, RHUL, UCL some outline.

Update on Diffractive Dijets Hardeep Bansil University of Birmingham 12/07/2013.

Penny Kasper Fermilab Heavy Quarkonium Workshop 21 June Upsilon production DØ Penny Kasper Fermilab (DØ collaboration) 29 June 2006 Heavy Quarkonium.

Tomas Hreus, Pascal Vanlaer Study of Strangeness Production in Underlying Event at 7 TeV 1QCD low pT meeting, 18/03/2011.

Impact Parameter Resolution Measurements from 900 GeV LHC DATA Boris Mangano & Ryan Kelley (UCSD)

Update on Diffractive Dijet Production Search Hardeep Bansil University of Birmingham 23/07/2012.

Taikan Suehara, 15 th general meeting of ILC physics (Asia) wg., 2010/05/15 page 1 Model 500 GeV Taikan Suehara ICEPP, The Univ. of Tokyo.

Update on Diffractive Dijets Analysis Hardeep Bansil University of Birmingham Soft QCD / Diffraction WG Meeting 28/10/2013.

Update on Diffractive Dijets Search Hardeep Bansil University of Birmingham SM Soft QCD meeting 12/12/2011.

Update on Diffractive Dijet Production Search Hardeep Bansil University of Birmingham Birmingham ATLAS Weekly Meeting 08/12/2011.

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.

UPDATE First Look at Trigger Efficiencies from AOD for ttH, H  bb Catrin Bernius UCL ATLAS Physics Meeting

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

Photon purity measurement on JF17 Di jet sample using Direct photon working Group ntuple Z.Liang (Academia Sinica,TaiWan) 6/24/20161.

Update on Diffractive Dijets Analysis Hardeep Bansil University of Birmingham 06/11/2013.

Update on Diffractive Dijets Analysis Hardeep Bansil University of Birmingham Soft QCD / Diffraction WG Meeting 27/01/2014.

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.

First attempt at reweighting Powheg+Pythia → Powheg+Herwig in W→μν events.

2nd lepton veto, in the one-lepton SUSY analysis

Discrimination of new physics models with ILC

Top physics during ATLAS commissioning

Effect of t42 algorithm on jets

Studies of prompt photon identification and 0 isolation in first p-p collisions at √s=10 TeV May 20, 2009 Meeting Frascati Raphaëlle Ichou.

W + 2 photon events in ALPGEN (P. Bell 4/8/2011)

Sílvia Bravo i Gallart IFAE, Barcelona Moriond-QCD, 18 March 2002

Higgs → t+t- in Vector Boson Fusion

N. ILINA, V. GAVRILOV (ITEP, Moscow)

Charged Particle Multiplicity in DIS

Observation of Diffractively Produced W- and Z-Bosons

Charged Particle Multiplicity in DIS

Fake Jet Rejection: Sum Jt

STAR Analysis Meeting - BNL

Charged Particle Multiplicity in DIS

(2S) Measument with CMS 10 TeV Data

(2S) Measument with CMS 10 TeV Data

Observation of Diffractively Produced W- and Z-Bosons

Study of Top properties at LHC

Presentation transcript:

Control plots at hadron level from official MC production Marek Taševský, V. Kůs, O. Kepka (Institute of Physics, Academy of Sciences, Prague) H. Bansil, P. Newman (University of Birmingham) Prague - 11/03 2013

Statistics available in official samples Data go to gap ~ 7 (see previous slide). Statistics of official ND samples insufficient, information on the large gaps is missing. A filter based on the gap distribution is needed.

HERWIG++ 2.6 ND weighted

HERWIG++ 2.6 ND weighted: sums

HERWIG++ 2.6 ND unweighted

HERWIG++ 2.6 ND unweighted: sums

HERWIG++ 2.6 ND weighted, w<8E4 Remove weights w>8E4 (loss smaller than 1 per-mille and concentrated in very first Gap bin) Get smoother Pt and Eta spectra

HERWIG++2.6 ND weighted:sums,w<8E4 Remove weights w>8E4: Get smoother Pt and Eta spectra

HERWIG++2.6 ND unweighted:sums,w<8E4

HERWIG++2.6 SD1 weighted

HERWIG++2.6 SD1 weighted: sums

HERWIG++2.6 SD1 unweighted Note: JZ0W corrupted

HERWIG++2.6 SD1 unweighted: sums Note: JZ0W corrupted

HERWIG++2.6 SD2 weighted

HERWIG++2.6 SD2 weighted: sums

HERWIG++2.6 SD2 unweighted Note: JZ0W corrupted

HERWIG++2.6 SD2 unweighted: sums Note: JZ0W corrupted

PYTHIA 8 ND weighted

PYTHIA 8 ND weighted: sums

PYTHIA 8 ND unweighted

PYTHIA 8 ND unweighted: sums

PYTHIA 8 ND unweighted: sums

PYTHIA 8 ND weighted: w<2E5 Remove weights w>2E5 (loss smaller than 2 per-mille and concentrated in very first Gap bin) Get smoother Pt and Eta spectra

PYTHIA 8 ND weighted: sums, w<2E5 Remove weights w>2E5 Get smoother Pt and Eta spectra

PYTHIA 8 ND unweighted: sums, w<2E5

PYTHIA 8 ND unweighted: sums, w<2E5

PYTHIA 8 SD weighted

PYTHIA 8 SD weighted: sums

PYTHIA 8 SD unweighted

PYTHIA 8 SD unweighted: sums

PYTHIA 8 SD unweighted: sums

PYTHIA 8 DD weighted

PYTHIA 8 DD weighted: sums

PYTHIA 8 DD unweighted

PYTHIA 8 DD unweighted: sums

PYTHIA 8 DD unweighted: sums

Preliminary findings 1. HW26SD1_JZ0W and HW26SD2_JZ0W corrupted 2. JZxW give smoother Etajet1 and Ptjet1 spectra 3. JZ0Ws are problematic: a) only few events survive Etjet2>12 GeV cut. From 400k of each sample we have: HW26ND: 1098, HW26SD: 0, PY8ND: 11973, PY8SD: 12773, PY8DD: 12514 - how many do we have after the detector-level selection Etjet1>30, Etjet2>20??? b) The sum JZ0W+JZ1W+JZ2W doesn’t match the x-section of the weighted samples The culprit is JZ0W: but what’s wrongly calculated?? - i) weight=1.0 – probably OK - ii) x-section? - iii) Filtering efficiency? 4. Due to large weights, Ptjet1 and Etajet1 spectra aren’t smooth in weighted samples. If events with huge weights are removed, the spectra get smoother. But the MC predictions in the very first bin of the Gap distribution lower by a visible manner. This will be followed up after the reco D3PDS are produced and samples after the detector-level cuts Etjet1>30, Etjet2>20 GeV are created.