Neutrino Oscillations Working Group Parallel Session Summary

Kurt Woschnagg*UC Berkeley

*WG co-lead with Ty DeYoung

IceCube collaboration meeting, Munich, October 12, 2013

Neutrino Oscillations Working GroupParallel Session Summary

Atmospheric Neutrino Oscillations

Search for muon neutrino disappearance in DeepCore data

Atmospheric Neutrino Oscillations

Search for muon neutrino disappearance in DeepCore data

Theoretical oscillogram

Observables

Likelihood scan inparameter space

IceCube has entered the oscillation field

First generation analysis (A. Gross)Low-E and high-E samplesAnalysis on zenith angleNo energy information used in fit

IceCube/DeepCore νμ disappearance at ICRC

Sebastian Euler, ICRC plots

IC79 νμ disappearance analysis

Markus Vehring

IC79 νμ disappearance analysis revisited

Estimating muon background from data

Anna KriestenHESE-inspired approach:1. Define veto layers2. Define veto3. Determine veto passing rates

DC

Estimating muon background from data• Preliminary studies of charge distributions

• Charge in layers 2 and 3 if tagged in layer 1

• Layers independent -> method should work

Estimating muon background from data

Layer 2 Layer 3

MultiLlh: likelihood fitting with FC errors

Laura Gladstone

MultiLlh: likelihood fitting with FC errors

MultiLlh: likelihood fitting with FC errors

MultiLlh: likelihood fitting with FC errors

Juan Pablo Yanez Results from IC86-2011

IC86 νμ disappearance analysis

• Results from first year

IC86 νμ disappearance analysis

• Nuisance parameters

IC86 νμ disappearance analysis

Extend to two or three years of IC86

IC86 νμ disappearance analysis

Matt Dunkman

IC86 νμ disappearance analysis IIRates at L3

Rates at L5BTD

Containment,Noise rejection

Low-E L3

João Pedro Athayde Marcondes de André (‘’JP”)

Plan for a ντ appearance analysis

Plan for a ντ appearance analysis

João Pedro Athayde Marcondes de André (‘’JP”)

Summary• First generation analysis published• Second generation analyses mature:

– IC79: • Being reoptimized• Better bgr estimate, from data

– IC86:• First year completed• Better energy reco before adding data• Multiyear analysis

• Third generation analyses:– Better tools (MultiLlh, energy reconstruction,…)– Better simulations – Higher statistics, multiyear data sets– Search for tau appearance