The Deep Underground Neutrino Experiment with an emphasis on - - PowerPoint PPT Presentation

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The Deep Underground Neutrino Experiment with an emphasis on - - PowerPoint PPT Presentation

Apr 12, 2023 204 likes •652 views

The Deep Underground Neutrino Experiment with an emphasis on astrophysics Outline I. Status of DUNE Design Collaboration Schedule, including ProtoDUNE II. Physics of DUNE Beam and atmospheric neutrinos Supernova

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The Deep Underground Neutrino Experiment

with an emphasis on astrophysics

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Outline

I. Status of DUNE

– Design – Collaboration – Schedule, including ProtoDUNE

  • II. Physics of DUNE

– Beam and atmospheric neutrinos – Supernova neutrinos – Nucleon decay – Other

9 March 2019 Maury Goodman 2

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Overview

9 March 2019 Maury Goodman 3

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Anatomy of DUNE

15m x 15 m x 65 m

9 March 2019 Maury Goodman 4

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The growing collaboration

As of January 2019 1202 collaborators from 183 institutions in 31 countries

 648 faculty/scientist, 201 PDs, 119 engineers, 234 PhD students

9 March 2019 Maury Goodman 5

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Single Phase----------------Dual Phase

9 March 2019 Maury Goodman 6

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Strategy

The DUNE Collaboration is pursuing and prototyping two LAr TPC technologies, SP &DP The collaboration is planning for the 1st 10 kT module to be SP & 2nd DP (2+1+1 model with 3rd module SP and 4th ‘module of opportunity’) Sequencing (SP-DP-SP vs. SP-SP-DP) will depend on ProtoDUNE results & resources

9 March 2019 Maury Goodman 7

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PIP II

Proton Improvement Plan Phase 2 using superconducting cryomodules Groundbreaking Ceremony 15 March 2019

9 March 2019 Maury Goodman 8

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DUNE Schedule

 Physics TDR will be available soon  Detector 1 ready to start installation August 2024  Detector 1 ready for cool down August 2025  Detector 1 ready for physics late summer 2026  Detector 2 ready to start installation August 2025  Detector 2 ready for cool down August 2026  Detector 2 ready for physics late summer 2027

9 March 2019 Maury Goodman 9

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ProtoDUNE

9 March 2019 Maury Goodman 10

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Purity

 Drops in purity due to stop

  • f the liquid argon

recirculation (sometime planned and sometime not)

9 March 2019 Maury Goodman 11

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CERN Beam ProtoDUNE running

9 March 2019 Maury Goodman 12

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Events / future CERN plan

 2018 ProtoDUNE-SP run  Use cosmics through Oct 2020 for SP & DP  Upgrade SP Oct 2020- Sep 2021  more beam Apr-May 2022

9 March 2019 Maury Goodman 13

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Supernova neutrinos

9 March 2019 Maury Goodman 14

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n Signals in Liquid Ar

A LAr detector is primarily sensitive to neutrinos, as

  • pposed to water/scintillator sensitivity to antineutrinos

9 March 2019 Maury Goodman 15

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n distributions (t, En) before oscillations

Garching Model

9 March 2019 Maury Goodman 16

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Rates and distance

Rate versus distance

9 March 2019 Maury Goodman 17

At 10 kpc:

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SIMULATIONS MARLEY & SNOGLOBES

MARLEY

Model of Argon Reaction Low Energy Yields

SNOwGLoBES

A fast event rate computation tool for long-baseline experiments

9 March 2019 Maury Goodman 18

Energy smearing without/with drift correction

http://www.marleygen.org/ http://webhome.phy.duke.edu/~schol/snowglobes/

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Time details

9 March 2019 Maury Goodman 19

n/(cm2 ms 0.2MeV) neutronization accretion cooling ne ne nx

En t

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Michels from stopping m appropriate for calibration

Supernova spectrum in DUNE Michel Electron Spectrum

9 March 2019 Maury Goodman 20

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Stopping m in ProtoDUNE

9 March 2019 Maury Goodman 21

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Trigger challenge

 SN triggering is a challenge for a slow LArTPC  Sampling at 1.15 TB/s for 10 kT single phase  100 s of uninterrupted data if SN happens  Don’t want to miss any galactic SN  Very rough rates:  1 SN@LMC makes 50 events in 40 kT  13 events in 10 kT  Spread over ~10 s  13 events/10 s  1 Bq  For Background 4  10-8 Bq 1 fake per month

Need a fast & efficient trigger algorithm

9 March 2019 Maury Goodman 22

Background contributions

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Interpretation challenges

We can predict an En spectrum from a model, but how well can we point to a model based on a measured spectrum?

9 March 2019 Maury Goodman 23

We need theorists to be perfect!

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Tests using DUNE SN n

  • f Lorentz/CPT violation

9 March 2019 Maury Goodman 24

Slide from Kostolecky

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SN n’s in NOvA

  • Reconstructed e+ from 10kpc in 1 s:

299 for 27 M 87 for 9.6 M

SN distance NOvA can detect with e = 50%:

6.23 kpc for 9.6 M 10.58 kpc for 27 M

9 March 2019 Maury Goodman 25

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Solar neutrinos

9 March 2019 Maury Goodman 26

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Solar n’s in DUNE

 theoretical studies: A. Ioannisian et al., Phys.Rev. D96 (2017) no.3, 036005  newer paper-- arXiv:1808.08232

The key advantage of DUNE: event-by-event energy reconstruction, rather than n-e recoil spectrum

8B+hep, from

SNOwGLoBES w/smearing from Amoruso et al., 2003 [not DUNE smearing]

100 kt-year solar n interactions

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Solar signal without background

Slide from K. Scholberg

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Capozzi et al. paper presents intriguing sensitivity: BUT: makes very optimistic assumptions: (7% energy resolution, 25% angular resolution, modest bg, no systematics, ...these may not be achieved*)

 Triggering studies still needed (different issues than SNB)  Overall realistic sensitivity for solar ns still under study

From K. Scholberg

*~20% energy resolution more likely, e.g., mBooNE 1704.02927

A Dm2

21 sensitivity estimate

9 March 2019 Maury Goodman 28

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Nucleon decay

9 March 2019 Maury Goodman 29

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NDK sensitivity 400 kT-y

p →nK+ Comparable to Super-K n → e- K+ Improve by ~100 91 modes in 2014 RPP (Super-K had reported best limit for only 14, but probably could do better in most modes. DUNE could compete in ~ 20.)

9 March 2019 Maury Goodman 30

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Beam neutrinos

9 March 2019 Maury Goodman 31

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CP, Order, q23 sensitivity

9 March 2019 Maury Goodman 32

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Atmospheric neutrinos

9 March 2019 Maury Goodman 33

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3n oscillations with Atmospheric n’s

9 March 2019 Maury Goodman 34

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Lorentz & CPT violation

using Standard Model Extension (SME)

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Sensitivity from Kostolecky, no simulation

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Other

9 March 2019 Maury Goodman 36

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Additional topics

 Relic Supernova neutrinos  GUT monopoles  Light Dark Matter  Boosted Dark Matter  Neutrinos from DM annihilation in the sun  Solar neutrinos  CPT and Lorentz Violation  Sterile Neutrino searches Coincidences with GRB, gravitational waves

9 March 2019 Maury Goodman 37

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Thank you!

9 March 2019 Maury Goodman 38

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Backup

9 March 2019 Maury Goodman 39

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SN direction

  • Some promising work is taking place on

reconstructing the direction from ne elastics.

9 March 2019 Maury Goodman 40

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Run5203-Evt1290

proto SP Cosmic Muon Stopping and decay Michel Electron 7 GeV - Pion Interaction (beam) proton 7 GeV Cosmic Muon Stopping and decay Michel Electron

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SN signal (red) on background (blue) in NOvA FarDet

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SN signal versus distance for NOvA

The resulting detection e for 3 signal shapes vs. t.