Tomo mography E Examp mple fro from m NOv OvA E. Craig Dukes - - PowerPoint PPT Presentation

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Jun 19, 2023 883 likes •1.02k views

Tomo mography E Examp mple fro from m NOv OvA E. Craig Dukes for the CRV Group October 28, 2019 NOvA Near Detector is Being Used for Tomography Craig Dukes Pyramid: 10/28/2019 2 A Bump was Found in Muon Flux Peter Filip, NOvA Craig

SLIDE 1

Tomo mography E Examp mple fro from m NOv OvA

E. Craig Dukes

for the CRV Group October 28, 2019

SLIDE 2

NOvA Near Detector is Being Used for Tomography

Craig Dukes Pyramid: 10/28/2019 2

SLIDE 3

A Bump was Found in Muon Flux

Craig Dukes Pyramid: 10/28/2019 3

Peter Filip, NOvA

SLIDE 4

Flux Suddenly Increased

Craig Dukes Pyramid: 10/28/2019 4

Peter Filip, NOvA

SLIDE 5

Bump Points to ICARUS

Craig Dukes Pyramid: 10/28/2019 5

Peter Filip, NOvA

SLIDE 6

ICARUS Construction Schedule

Craig Dukes Pyramid: 10/28/2019 6

Peter Filip, NOvA

SLIDE 7

Found a Deficit as Well

Craig Dukes Pyramid: 10/28/2019 7

Peter Filip, NOvA

SLIDE 8

Is There a North-South Difference

Craig Dukes Pyramid: 10/28/2019 8

Peter Filip, NOvA

SLIDE 9

North-South Difference

Craig Dukes Pyramid: 10/28/2019 9

Peter Filip, NOvA

SLIDE 10

North-South Difference

Craig Dukes Pyramid: 10/28/2019 10

Peter Filip, NOvA

SLIDE 11

Left-Right Difference as Well

Craig Dukes Pyramid: 10/28/2019 11

Peter Filip, NOvA

SLIDE 12

Comments

Craig Dukes Pyramid: 10/28/2019 12

NOvA Near Detector is ~100 m underground, which removes low- energy muons There is no East-West effect for high energy muons We do not have this luxury for scanning the pyramid unless we can somehow eliminate low-energy muons Eliminating low-energy muons (< 100 GeV) can be done using TRDs, which would mean a completely different design. Unfortunately, these are the muons we want!