Antares Neutrino Telescope

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Antares Neutrino Telescope

• Jean-Pierre Ernenwein
• Université de Haute Alsace
• (On behalf of the ANTARES collaboration)

Rencontres de Moriond, 13/03/2005
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ANTARES collaboration
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The messenger of ANTARES
g absorbed (interaction with C.B.)
n
p magn. field GZK effect
Neutrino n

• Weakly interacting ? Source exploration on
  cosmological distances
• Access to the heart of sources
• Weakly interacting ? large detection volume
  required

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(Potential) Sources of Neutrinos for ANTARES
GALACTIC SOURCES
Micro Quasars,
Galactic Center,
Dark Matter annihilation of neutralinos inside
massive objects (Sun, Earth, Galactic Center)
Gamma Ray Bursts
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(Potential) Sources of Neutrinos for ANTARES
M 87
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Neutrino detection principle
ANTARES detection principle
3D PMT array
nm
p, a
p
m
Cherenkov light from m
gc
nm
g
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2500 m depth
Measurement Time position of hits
m
interaction
n
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• 12 lines
• 25 storeys / line
• 3 PMTs / storey
• 900 PMTs

14.5 m
350 m
to be deployed by 2005-2007
100 m
2500m depth
70 m
Anchor/line socket
Submarine links
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Detector design
STOREY
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ANTARES location and sky view
Off the coast of Toulon (France) in mediterranean
Sea (42º50N, 6º10E), at 2500 m depth.
0.5 p sr instantaneous common view
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ANTARES angular resolution
Electronics simulation light absorption
scattering light background (40K bacteria
bioluminescence 60 kHz)
Eµ gt10 TeV
WATER on ANTARES site
labs 26/60 m _at_ 370/470 nm
leff (scattering) 100/300 m _at_ 370/470 nm
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ANTARES Energy resolution
10 GeV lt Em lt 100 GeV method muon path
Emgt1 TeV method quantity of light ? E
estimated by a factor 2-3
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ANTARES Effective Areas


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Performances Diffuse Fluxes
Neutrino oscillations ? nenmnt 111
Detectors sensitive to HE cascades ? sensitive
to HE n of any flavour
ANTARES HE cascade sensitvity estimate in
progress not yet included in limits

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Point-like sources sensitivity
Test of Micro Quasar C. Distefano et al model
MACRO
Amanda has the required sensitivity.
Antares will reach this sensitivity.
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Prototype Sector Line
Connected in March 2003
5 storeys
40K bacteria
Junction box
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Submarine cable connection
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Year 2005 Line 0, MILOM
Line 0 23 storeys with spheres but without
PMTs inside purpose test of new version of
EMC cable test of LCMs penetrators (failures
in PSL)
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Next Steps Line 1 ...
Line 0 validation of the new EMC cable
Line 1 is currently at the integration step
Line 1 will be deployed and connected in autumn
2005
The 11 next lines will be deployed and connected
during year 2006 / beginning of 2007