instituto de física gleb wataghin unicamp ictp-saifr ...neutrino astrophysics pedro c. holanda...
TRANSCRIPT
![Page 1: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/1.jpg)
Neutrino Astrophysics
Pedro C. HolandaInstituto de Física Gleb Wataghin
UNICAMP
@
School and Workshop on Dark Matter and Neutrino Detection
ICTP-SAIFR/IFT-UNESP07/2018
![Page 2: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/2.jpg)
● Outline of the talk
➔ Supernova Neutrino Detection➔ Diffuse Supernova Neutrinos➔ High-Energy Neutrinos
![Page 3: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/3.jpg)
Supernova Neutrinos
![Page 4: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/4.jpg)
● Supernova Neutrino Emission
Supernova Neutrinos
- strong emission of neutrinos from colapsing stars
Raffelt, 1201.1637
![Page 5: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/5.jpg)
● Supernova Neutrino Emission
Supernova Neutrinos
- close to thermal emission, with
Raffelt, 1201.1637
![Page 6: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/6.jpg)
● Supernova Neutrino Emission
from Vissani's talk, Paris 2011.
Supernova Neutrinos
- importance features on time and energy structure!
![Page 7: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/7.jpg)
● Supernova Neutrino Conversion
Supernova Neutrinos
- like solar neutrinos, supernova neutrinos are produced in a dense medium, in flavour eigenstates that relates to mass eigenstates through proper diagonalization of the Hamiltonian.
normal inverted
![Page 8: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/8.jpg)
But things are more complicated:
Supernova Neutrinos
nn interaction
![Page 9: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/9.jpg)
Supernova NeutrinosBut things are more complicated:
![Page 10: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/10.jpg)
Supernova NeutrinosBut things are more complicated:
Flavour swap?Collective oscilations?
To be honest, we don’t know the flavour distribution of supernova neutrinos!
![Page 11: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/11.jpg)
SN 1987A: a succesfull case for Supernova Neutrino detection
Supernova Neutrinos
![Page 12: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/12.jpg)
SN 1987A
Supernova Neutrinos
![Page 13: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/13.jpg)
● Next Galactic Supernova will provide great statistics;
Supernova Neutrinos
Fortunately, it will happen in our lifetime.
● Strong conversion of physicist into supernova neutrino specialists;
● > 200 articles in the first month;
● dedicated conferences in nice places;
● a lot of learning opportunities.
![Page 14: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/14.jpg)
Diffuse Supernova BackgroundDSNB
![Page 15: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/15.jpg)
Diffuse Supernova BackgroundDSNB
- Why waiting for a gallactic SN, if somewhere else in the Universe a SN is exploding every second?
worse then that, we have to account redshift and space expansion!
- But what if we integrate the signal of all neutrinos from SN explosions?
![Page 16: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/16.jpg)
Diffuse Supernova BackgroundDSNB
Related question: Olbers' paradox.
![Page 17: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/17.jpg)
Diffuse Supernova BackgroundDSNB
Related question: Olbers' paradox.
Why is the night dark?
We should have a bright sky!
![Page 18: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/18.jpg)
Diffuse Supernova BackgroundDSNB
Related question: Olbers' paradox.
Why is the night dark?
- light takes time to propagate, so we have to include a retarded time in L
s.
![Page 19: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/19.jpg)
Diffuse Supernova BackgroundDSNB
Related question: Olbers' paradox.
Why is the night dark?
- light takes time to propagate, so we have to include a retarded time in L
s.
- since Universe is not infinite in time, integral should go only to causal Universe.
![Page 20: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/20.jpg)
Diffuse Supernova BackgroundDSNB
Related question: Olbers' paradox.
Why is the night dark?
- light takes time to propagate, so we have to include a retarded time in L
s.
- since Universe is not infinite in time, integral should go only to causal Universe.
- Universe is expanding, so photons redshift.
![Page 21: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/21.jpg)
Diffuse Supernova BackgroundDSNB
- Back to DSNB:
![Page 22: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/22.jpg)
Diffuse Supernova BackgroundDSNB
- Back to DSNB:
- SN explosion rate
![Page 23: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/23.jpg)
Diffuse Supernova BackgroundDSNB
- Back to DSNB:
- SN explosion rate
- neutrino energy redshifted
![Page 24: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/24.jpg)
Diffuse Supernova BackgroundDSNB
- Back to DSNB:
- SN explosion rate
- neutrino energy redshifted
- universe expansion
![Page 25: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/25.jpg)
Diffuse Supernova BackgroundDSNB
Lunardini et al., ArXiV:1012.1274
- Small window between solar and atmospheric neutrinos to search for DSNB.
![Page 26: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/26.jpg)
Diffuse Supernova BackgroundDSNB
From ArXiV:1508.00785
- but with a chalenging event rate...
![Page 27: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/27.jpg)
High-Energy Neutrinos
![Page 28: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/28.jpg)
Icecube
![Page 29: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/29.jpg)
Icecube
![Page 30: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/30.jpg)
Icecube- detect cherenkov light from charged particles.- incoming neutrino produces the associated charged lepton through charged current.
● Muon neutrinos leave a track + a hadronic shower.
![Page 31: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/31.jpg)
Icecube- detect cherenkov light from charged particles.- incoming neutrino produces the associated charged lepton through charged current.
● Electron and (low energy) tau neutrinos produce only a shower
![Page 32: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/32.jpg)
Icecube
- events with muon tracks has an excelent angular resolution < 1o.
● But events are not contained, so energy leaks out of the detector, making it difficult to find original neutrino energy.
● Huge atmospheric background, difficult (but not impossible) to distinguish non-atmospheric neutrinos.
● At such high energies, neutrino absortion on Earth is relevant, so more sensible to downgoing neutrinos: south hemisphere
![Page 33: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/33.jpg)
Icecube
- events with muon tracks has an excelent angular resolution < 1o.
● But events are not contained, so energy leaks out of the detector, making it difficult to find original neutrino energy.
● Huge atmospheric background, difficult (but not impossible) to distinguish non-atmospheric neutrinos.
● At such high energies, neutrino absortion on Earth is relevant, so more sensible to downgoing neutrinos: south hemisphere
- Shower events can do a better job in reconstructing neutrino energy, but with poor direccionality: < 30o
● Sensible to electronic and tauonic neutrinos, not present in atmospheric neutrino flux for high energies → cleaner background
![Page 34: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/34.jpg)
IceCube Runs
![Page 35: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/35.jpg)
Icecube, track x showers
- 103 events (60 events with energy > 30 TeV)
Taboada @ Neutrino 2018
![Page 36: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/36.jpg)
Icecube, track x showers
Event excess in high-energy and downgoing.
Taboada @ Neutrino 2018
![Page 37: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/37.jpg)
nm from northern hemisphere
![Page 38: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/38.jpg)
Icecube, track x showersNo directionality (!)
![Page 39: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/39.jpg)
Flavor composition
![Page 40: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/40.jpg)
Flavor composition
Due to large mixing angles, flavour distribution in initial neutrino fluxes changes with neutrino evolution.
neutrino evolution
neutrino evolution {
It is reasonable to expect something close to (1:1:1) on Earth.
Píon decay:
Muon damped / radioactive decay:
![Page 41: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/41.jpg)
Flavor composition
Results (arxiv:1806.05696)
![Page 42: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/42.jpg)
But, recently:
![Page 43: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/43.jpg)
But, recently:
Energy = 290 TeV,Zenith angle = 5.7 degrees below horizon
![Page 44: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/44.jpg)
And, then:
![Page 45: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/45.jpg)
And, then:
![Page 46: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/46.jpg)
And, then:
![Page 47: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/47.jpg)
And, then:
![Page 48: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/48.jpg)
And, then:
![Page 49: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/49.jpg)
And, then:
13 events in excess!
![Page 50: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/50.jpg)
And, then:
1 event that triggered the analysis
![Page 51: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/51.jpg)
And, then:
![Page 52: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/52.jpg)
Announcement:
Francis Halzen – IceCube Principal Investigator
Regina Caputo – Fermi-LAT Analysis Coordinator
Razmik Mirzoyan – MAGIC Spokesperson
Olga Botner – Former IceCube Spokesperson
![Page 53: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/53.jpg)
Announcement:
Francis Halzen – IceCube Principal Investigator
Regina Caputo – Fermi-LAT Analysis Coordinator
Razmik Mirzoyan – MAGIC Spokesperson
Olga Botner – Former IceCube Spokesperson
Multi-messenger!!
![Page 54: Instituto de Física Gleb Wataghin UNICAMP ICTP-SAIFR ...Neutrino Astrophysics Pedro C. Holanda Instituto de Física Gleb Wataghin UNICAMP @ School and Workshop on Dark Matter and](https://reader036.vdocuments.us/reader036/viewer/2022071511/6130d5fc1ecc5158694459e0/html5/thumbnails/54.jpg)
Conclusions
- work in progress...