Presentation is loading. Please wait.

Presentation is loading. Please wait.

NC Energy Estimators Philip Rodrigues. Issues Need to choose what true E to estimate. Options are: –showerEnergy –trueVisibleE –y*E_nu Need to choose.

Published byArturo Knapp Modified over 10 years ago

Similar presentations

Presentation on theme: "NC Energy Estimators Philip Rodrigues. Issues Need to choose what true E to estimate. Options are: –showerEnergy –trueVisibleE –y*E_nu Need to choose."— Presentation transcript:

1 NC Energy Estimators Philip Rodrigues

2 Issues Need to choose what true E to estimate. Options are: –showerEnergy –trueVisibleE –y*E_nu Need to choose what reco variable to use. Options galore. Once chosen, calibrate it. –For true NC only, or for background too?

3 Method Hedge my bets: –Run with different E_true –Run with/without CC bg –Run with different E_reco 1.Plot (E_reco-E_true)/E_true 2.Fit gaussian to peak 3.Scale E_reco until fit peaks at 0 All ND MC so far, until fixed FD MC becomes available

4 Distributions - Uncalibrated E_reco=event.energyGeV. NC selected by Tom’s cuts Fiducial, high mult clean Fitting peak biases towards calibrating NC True CC events selected as NC tend to have energy overestimated

5 Distributions – calibrated for NC Fit gaussian to NC selected, true NC True NC well fit, slight bias in background

6 Choice of E_reco RMS after calibration as measure of width EstimatorTrue NC only+True CC event.energyGeV0.4910.579 reco.nuEnergy= reco.nuEnergyCC 0.4660.502 reco.showerEnergyCC0.5180.504 reco.showerEnergyNC0.3870.463 shower.deweightCCGeV0.3660.401 shower.deweightNCGeV = reco.nuEnergyNC 0.3870.463 shower.linearCCGeV0.5170.508 shower.linearNCGeV0.4850.504

7 True NC vs all selected: How big is the difference? Phill uses E_true=E_shw + E_mu Scale factors for different choices: deweightNCGeVlinearNCGeV -True CC, -E_mu0.9010.928 +True CC, -E_mu0.9050.902 -True CC, +E_mu0.9080.905 +True CC, +E_mu0.9100.909

8 Which E_true to use? Not much difference

9 What next? Performance of estimators as a function of energy Far detector Other ideas?

Download ppt "NC Energy Estimators Philip Rodrigues. Issues Need to choose what true E to estimate. Options are: –showerEnergy –trueVisibleE –y*E_nu Need to choose."

Similar presentations

Mark Dorman UCL/RAL Hough Methods In The CC Analysis Of The Far Detector Mark Dorman Inclusion of Hough variables into PAN NC/CC discriminating power Obtaining.

Mark Dorman UCL/RAL Hough Methods In The CC Analysis Of The Far Detector Mark Dorman Inclusion of Hough variables into PAN NC/CC discriminating power Obtaining.
Update on Data / MC Comparisons for Low Hadronic Energy CC-like Events Reminder of problem Fiducial studies with more MC statistics Effect of offset in.

Update on Data / MC Comparisons for Low Hadronic Energy CC-like Events Reminder of problem Fiducial studies with more MC statistics Effect of offset in.
Technische Universität München Status report on SADC feature extraction.

Technische Universität München Status report on SADC feature extraction.
Data/Monte Carlo disagreement for Rustem’s Signal Fluctuation variable in the Far Detector (Working Title) Philip Rodrigues Oxford MINOS Group Meeting.

Data/Monte Carlo disagreement for Rustem’s Signal Fluctuation variable in the Far Detector (Working Title) Philip Rodrigues Oxford MINOS Group Meeting.
FD Crosstalk or A disappointing lack of pretty colours Philip Rodrigues Oxford MINOS Meeting 20 May 2008.

FD Crosstalk or A disappointing lack of pretty colours Philip Rodrigues Oxford MINOS Meeting 20 May 2008.
CC Background Systematic 3 Philip Rodrigues Oxford Group Meeting 30/10/07.

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.

Possible directions for NC sensitivity Philip Rodrigues April 2008 Minos collaboration meeting, Sussex.
NC Energy Estimators 2 Philip Rodrigues 27/03/2007.

NC Energy Estimators 2 Philip Rodrigues 27/03/2007.
CC background systematics or “Once more, this time with errors” Philip Rodrigues Oxford Group Meeting 6/11/07.

CC background systematics or “Once more, this time with errors” Philip Rodrigues Oxford Group Meeting 6/11/07.
Transverse momentum of Z bosons in Zee and Zmm decays Daniel Beecher 12 December 2005.

Transverse momentum of Z bosons in Zee and Zmm decays Daniel Beecher 12 December 2005.
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.
Oct. Coll Meet. 20051 Late Activity Cuts Without Bias Thomas H. Osiecki University of Texas at Austin.

Oct. Coll Meet Late Activity Cuts Without Bias Thomas H. Osiecki University of Texas at Austin.
13/02/20071 Event selection methods & First look at new PCB test Manqi Ruan Support & Discussing: Roman Advisor: Z. ZHANG (LAL) & Y. GAO (Tsinghua))

13/02/20071 Event selection methods & First look at new PCB test Manqi Ruan Support & Discussing: Roman Advisor: Z. ZHANG (LAL) & Y. GAO (Tsinghua))
Status Analysis pp -> D s D s0 (2317) Overview Reconstruction Some QA plots Figure of merit First approach/strategy.

Status Analysis pp -> D s D s0 (2317) Overview Reconstruction Some QA plots Figure of merit First approach/strategy.
Off-axis Simulations Peter Litchfield, Minnesota  What has been simulated?  Will the experiment work?  Can we choose a technology based on simulations?

Off-axis Simulations Peter Litchfield, Minnesota  What has been simulated?  Will the experiment work?  Can we choose a technology based on simulations?
1 N. Davidson E/p single hadron energy scale check with minimum bias events Jet Note 8 Meeting 15 th May 2007.

1 N. Davidson E/p single hadron energy scale check with minimum bias events Jet Note 8 Meeting 15 th May 2007.
CC analysis progress This talk: –A first attempt at calculating CC energy sensitivity using the Far Mock data MC files with full reconstruction. –Quite.

CC analysis progress This talk: –A first attempt at calculating CC energy sensitivity using the Far Mock data MC files with full reconstruction. –Quite.
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.

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.
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.

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.
Performance of a Water Cherenkov Detector for e Appearance Shoei NAKAYAMA (ICRR, University of Tokyo) November 18-19, 2005 International Workshop on a.

Performance of a Water Cherenkov Detector for e Appearance Shoei NAKAYAMA (ICRR, University of Tokyo) November 18-19, 2005 International Workshop on a.

Similar presentations

Ads by Google