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CC background systematics or “Once more, this time with errors” Philip Rodrigues Oxford Group Meeting 6/11/07
2 Error error MC stats similar to data stats – need to add in MC error to c 2 : Changes best fit point, because where S CC and S NC are what we’re trying to find
3 Calculating parameter errors Use mean of up/down errors ( Dc 2 = 1 ) as symmetrical error in plots TH2::SetContour(50)
4 Result – no shower scale Flatter More consistent errors Same NC dip
5 Shower scale No evidence for significant shower scale Cutoff in fit at 1.8
6 Robustness 1 Still not very robust
7 Robustness 2 Still, not too bad considering: –RO pid has smaller lever arm
8 Conclusions Results look more convincing with correct errors Robustness problems remain
CC Background Systematic 3 Philip Rodrigues Oxford Group Meeting 30/10/07.
Possible directions for NC sensitivity Philip Rodrigues April 2008 Minos collaboration meeting, Sussex.
FD Crosstalk or A disappointing lack of pretty colours Philip Rodrigues Oxford MINOS Meeting 20 May 2008.
NC Energy Estimators 2 Philip Rodrigues 27/03/2007.
A bin-free Extended Maximum Likelihood Fit + Feldman-Cousins error analysis Peter Litchfield A bin free Extended Maximum Likelihood method of fitting.
Effect of b-tagging Scale Factors on M bb invariant mass distribution Ricardo Gonçalo.
CC PID Task Force Status Update Philip Rodrigues CC Phone Meeting 6 Dec 07.
Measurement of the D e form factor A. Oyanguren (IFIC, Valencia) J. Costa, A. D’Orazio, P. Roudeau, J. Serrano (LAL, Orsay) To do list Background.
1 Latest CC analysis developments New selection efficiencies: –Based on C++ reco + PDFs rather than old (Fortran+reco_minos) cuts –Attempt to optimise.
Reconstruction Issues in Cosmic Ray Muons Maury Goodman/Gavril Giurgiu & Jurgen Reichenbacher.
Search for Electron Neutrino Appearance in MINOS Mhair Orchanian California Institute of Technology On behalf of the MINOS Collaboration DPF 2011 Meeting.
Measuring Oscillation Parameters Four different Hadron Production models Four predicted Far CC spectrum.
April 1, Beam measurement with -Update - David Jaffe & Pedro Ochoa 1)Reminder of proposed technique 2)Use of horn-off data 3)Use of horn2-off data?
A different cc/nc oscillation analysis Peter Litchfield The Idea: Translate near detector events to the far detector event-by-event, incorporating.
Extrapolation Techniques Four different techniques have been used to extrapolate near detector data to the far detector to predict the neutrino energy.
© Imperial College LondonPage 1 Tracking & Ecal Positional/Angular Resolution Hakan Yilmaz.
Referee Report on Open charm production results for summer conferences, 2010 Peter Clarke Marcel Merk “Observations” and “Comments” The referees thank.
H ➝ bb search and b-tagging Ricardo Gonçalo on behalf of the Higgs subgroup 5.
Selection: i) Used “basic cuts” described in my NuBarPID talk (slide 3). 74.4% of CC events pass this cut. ii) Used David’s PID cut at -0.2 to remove NC.
NC Energy Estimators Philip Rodrigues. Issues Need to choose what true E to estimate. Options are: –showerEnergy –trueVisibleE –y*E_nu Need to choose.
1 Cross-section systematics Broad aims of this study: –Evaluate the effect of cross-section uncertainties on the all-event CC analysis (selection efficiencies,
MINOS 1 Beam e ’s from antineutrinos David Jaffe and Pedro Ochoa September 27 th 2007 Preliminaries Data & MC Expected sensitivities Preliminary.
Topics Topic 21 Comparing Two Proportion.
Source Dynamics from Deuteron and Anti-deuteron Measurements in 200 GeV Au+Au Collisions Hugo E Valle Vanderbilt University (For the PHENIX Collaboration)
1 A study to clarify important systematic errors A.K.Ichikawa, Kyoto univ. We have just started not to be in a time blind with construction works. Activity.
Background Subtraction Fitting technique: Fit mass with G 1 + G 2 + a + b/x Background is G 1 + a + b/x Use 3 cut Goal: put limit on systematic error.
1 Bunch length measurement with the luminous region Z distribution : evolution since 03/04 B. VIAUD, C. O’Grady B. VIAUD, C. O’Grady Origin of the discrepancies.
Regression. Population Covariance and Correlation.
1/16 MDC post-mortem redux Status as of last CC meeting: –True values of cross-section and oscillation parameters were used to reweight the ND and FD MC.
Blessed Plots 2005 The current set of Blessed plots available from the MINOS website are taken from the 5 year plan exercise that occurred in mid-2003.
MINOS Coll Meet. Oxford, Jan CC/NC Data Cross Checks Thomas Osiecki University of Texas at Austin.
1 Using the pHE data to measure the beam e ’s from + decay David Jaffe and Pedro Ochoa April 12 th 2007 Reminder Systematic from background Horn.
Paolo Massarotti Kaon meeting March 2007 ± X X Time measurement use neutral vertex only in order to obtain a completely independent.
Some answers to the questions/comments at the Heavy/Light presentation of March 17, Outline : 1) Addition of the id quadrant cut (slides 2-3); 2)
Alternative Code to Calculate NMH Sensitivity J. Brunner 16/10/
Cedar and pre-Daikon Validation ● CC PID parameter based CC sample selections with Birch, Cedar, Carrot and pre-Daikon. ● Cedar validation for use with.
Proposal for the study to define what is really necessary and what is not when the data from beam, ND and SK are combined A.K.Ichikawa 2008/1/17.
P. Vahle, Oxford Jan F/N Ratio and the Effect of Systematics on the 1e20 POT CC Analysis J. Thomas, P. Vahle University College London Feburary.
Conclusions We established the characteristics of the Fe K line emission in these sources. In 7 observations, we did not detect the source significantly.
Hypothesis Testing Steps of a Statistical Significance Test. 1. Assumptions Type of data, form of population, method of sampling, sample size.
AGENDA Review In-Class Group Problems Review. Homework #3 Due on Thursday Do the first problem correctly Difference between what should happen over the.
1 Using the pHE data to measure the beam e ’s from + decay David Jaffe and Pedro Ochoa March 13 th 2007 Introduction Antineutrino selection Feasibility.
Role and Place of Statistical Data Analysis and very simple applications Simplified diagram of scientific research When you know the system: Estimation.
Resonances in decay Resonances in decay (for 400fb -1 ) (for 400fb -1 )BAM February 27th, 2006 J.Brodzicka, H.Palka INP Kraków J.Brodzicka, H.Palka INP.
Systematic measurement of light vector mesons at RHIC-PHNEIX Yoshihide Nakamiya Hiroshima University, Japan (for the PHENIX Collaboration) Quark Matter.
Moriond 2001Jets at the TeVatron1 QCD: Approaching True Precision or, Latest Jet Results from the TeVatron Experimental Details SubJets and Event Quantities.
Inclusive charm cross-section and charm hadrons production fractions F. Di Capua.
Role and Place of Statistical Data Analysis and very simple applications Simplified diagram of a scientific research When you know the system: Estimation.
Alan Flores, Kathy Alvarado, Carol Prieto Period:
Recent Results from Super-Kamiokande on Atmospheric Neutrino Measurements Choji Saji ICRR,Univ. of Tokyo for the Super-Kamiokande collaboration ICHEP 2004,
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