Homestake Atmospheric Flux John LoSecco University of Notre Dame - PowerPoint PPT Presentation

Homestake Atmospheric ν Flux John LoSecco University of Notre Dame February, 2016

Honda 2014 Flux ◮ Made for many locations ◮ Asked for Homestake mine ◮ No mountain ◮ From 100 MeV to 10 TeV

Compare to Sudbury – Unoscillated spectrum Raw Neutrino Flux File Name Raw Neutrino Flux File Name lly-20-01-solmaOne lly-20-01-solmaOne lly-20-01-solmaOne lly-20-01-solmaOne 1 1 1 1 10 − 1 10 − 1 File Name File Name Raw Neutrino Flux Raw Neutrino Flux lly-20-01-solmaOne lly-20-01-solmaOne lly-20-01-solmaOne lly-20-01-solmaOne 10 1 − 1 10 − 10 1 1 10 1 1 − − Black is SNO and Red in Homestake: ν µ ¯ ν µ ν e ¯ ν e Loglog plot barely distinguishable

Compare to Sudbury – Energy and Zenith – CC Events File Name Raw CC Rate Raw CC Rate File Name Raw CC Rate Raw CC Rate lly-20-01-solmaOne lly-20-01-solmaOne 1 1 lly-20-01-solmaOne lly-20-01-solmaOne 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 0 0.2 0.2 − − 0.4 0.4 − − 0.6 0.6 − − 0.8 0.8 − − 1 1 − − 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 File Name File Name Raw CC Rate Raw CC Rate lly-20-01-solmaOne lly-20-01-solmaOne 1 1 lly-20-01-solmaOne lly-20-01-solmaOne 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 0 0.2 0.2 − − 0.4 0.4 − − 0.6 0.6 − − 0.8 0.8 − − 1 1 − − 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 Black is SNO and Red is Homestake: ν µ ¯ ν µ ν e ¯ ν e Contour plot of CC event rates barely distinguishable

Compare to Soudan – Unoscillated spectrum File Name File Name Raw Neutrino Flux Raw Neutrino Flux lly-20-01-solmaOne lly-20-01-solmaOne x10_0401z x10_0401z 1 1 1 10 − 10 − 1 2 10 − 10 2 − 1 1 10 − 1 10 − 1 File Name File Name Raw Neutrino Flux Raw Neutrino Flux lly-20-01-solmaOne lly-20-01-solmaOne x10_0401z x10_0401z 10 1 1 − 10 − 2 10 − 10 2 − 1 1 10 − 1 10 − 1 Red is Soudan (Gaisser) and Black is Homestake (Honda): ν µ ¯ ν µ ν e ¯ ν e Loglog plot

Compare to Soudan – Energy and Zenith – CC Events File Name File Name Raw CC Rate Raw CC Rate Raw CC Rate Raw CC Rate lly-20-01-solmaOne lly-20-01-solmaOne 1 1 x10_0401z x10_0401z 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 0 0.2 0.2 − − 0.4 0.4 − − 0.6 0.6 − − 0.8 0.8 − − 1 1 − 0.2 0.4 0.6 0.8 1 − 0.2 0.4 0.6 0.8 1 File Name File Name Raw CC Rate Raw CC Rate lly-20-01-solmaOne lly-20-01-solmaOne 1 1 x10_0401z x10_0401z 0.8 0.8 0.6 0.6 0.4 0.4 0.2 0.2 0 0 0.2 0.2 − − 0.4 0.4 − − 0.6 0.6 − − 0.8 0.8 − − 1 1 − − 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 Red is Soudan (Gaiser) and Black is Homestake (Honda): ν µ ¯ ν µ ν e ¯ ν e Contour plot of CC event rates barely distinguishable

Event rates (Sol Max) Raw CC Rate Raw CC Rate RawCCnum RawCCnum RawCCnum RawCCnum Entries Entries 2020 2020 Entries Entries 2020 2020 10 9 Mean Mean 4.468 4.468 Mean Mean 4.468 4.468 RMS RMS 53.23 53.23 RMS RMS 53.23 53.23 8 1 7 6 1 10 − 5 4 10 2 − 3 2 3 10 − 1 0 1 2 3 4 1 2 3 4 10 − 1 10 10 10 10 10 − 1 10 10 10 10 Osc Mu Rate Osc Mu Rate MuOsc MuOsc MuOsc MuOsc 10 Entries Entries 4040 4040 Entries Entries 4040 4040 6 Mean Mean 5.771 5.771 Mean Mean 5.771 5.771 RMS RMS 64.88 64.88 RMS RMS 64.88 64.88 5 1 4 1 10 − 3 10 − 2 2 1 10 3 − 0 3 3 10 1 1 10 10 2 10 10 4 10 1 1 10 10 2 10 10 4 − − Top unoscillated, Bottom oscillated Linear scale on left and log on right. From top down ν µ ν e ¯ ν µ ¯ ν e ν τ ¯ ν τ

Topography – Not in Honda Calculation

Shared in DocDB ◮ Honda estimate of the atmospheric flux at Homestake DocDB-1037 ◮ Topographical map of Homestake DocDB-1038