Status of KM3NeT Status of KM3NeT (Detector Design (Detector Design Optimisations) Optimisations) Christopher Naumann, Christopher Naumann, CEA Saclay – IRFU / SPP CEA Saclay – IRFU / SPP for the KM3NeT consortium for the KM3NeT consortium 44 44 th th Reconcontres de Moriond, Reconcontres de Moriond, La Thuile, Italy , 1 La Thuile, Italy , 1 st st -8 -8 th th February 2009 February 2009
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Status of KM3NeT (Detector Design Optimisations) Christopher Naumann, CEA Saclay – IRFU / SPP for the KM3NeT consortium 44 th Reconcontres de Moriond,
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Status of KM3NeTStatus of KM3NeT(Detector Design Optimisations)(Detector Design Optimisations)
Status of KM3NeTStatus of KM3NeT(Detector Design Optimisations)(Detector Design Optimisations)
Christopher Naumann,Christopher Naumann,
CEA Saclay – IRFU / SPPCEA Saclay – IRFU / SPPfor the KM3NeT consortiumfor the KM3NeT consortium
4444thth Reconcontres de Moriond, Reconcontres de Moriond, La Thuile, Italy , 1La Thuile, Italy , 1stst-8-8thth February 2009 February 2009
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 2
Physics Motivation: Neutrinos from Astrophysical SourcesPhysics Motivation: Neutrinos from Astrophysical Sources
•TeV neutrinos by-product in cosmic accelerators:TeV neutrinos by-product in cosmic accelerators:
Gamma Ray Bursts
• “smoking gun” for hadronic acceleration
• probe for hidden sources: no magnetic deflection, (nearly) no absorption
new window to astrophysics!
supernova remnants
Active galacticnuclei (AGN)
p/A + p/ + ...
e e
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 3
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 4
KM3NeT – a kmKM3NeT – a km33 neutrino telescope in the Mediterranean neutrino telescope in the Mediterranean
Consortium of Consortium of ~~40 laboratories from 10 European countries40 laboratories from 10 European countries
Combines Mediterranean projects ANTARES, NEMO and NESTOR Combines Mediterranean projects ANTARES, NEMO and NESTOR
neutrino astronomy on a new scaleneutrino astronomy on a new scale + earth and sea science + earth and sea science
– Design Study (2006-2009): “develop adevelop a cost-effective designdesign for the construction of a 1 km3 neutrino telescope”
– Preparatory Phase (2008-2011): “prepararationprepararation for constructionconstruction by defining the legal, financial and governance issues, as well as the pre-pre-productionproduction of the telescope componentstelescope components”
co-financed by E.U. (FP6 and FP7)
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 5
The KM3NeT siteThe KM3NeT site
ToulonToulon
Capo PasseroCapo Passero
PylosPylos
candidate sitesthree candidate sites in the
Mediterranean
depth 2500-5500 m
different water properties
decision pending
sky coverage > 2 sr
complementary to IceCube (but overlap)
Galactic centre
HESS sources
KM3NeT
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 6
KM3NeT – Design GoalsKM3NeT – Design Goals
complementary to IceCube and with complementary to IceCube and with improved physics improved physics sensitivitysensitivity
−angular resolution 0.1° above 30TeV angular resolution 0.1° above 30TeV − focus energy range 1 TeV – 1 PeVfocus energy range 1 TeV – 1 PeV−good muon background suppressiongood muon background suppression
design goals and technical options formulated in CDR www.km3net.org/CDR/CDR-KM3NeT.pdf
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 14
Dark matter sensitivity (Dark matter sensitivity (reference detector)reference detector)
Detectability:
- Blue: ANTARES
- Green: KM3NeT
- Red: None of them
preliminary values, need for further optimisation !
Scan of mSUGRAparameter space
Focus on pointscompatible withWMAP data
significant increase over ANTARES sensitivity
"Status of KM3NeT Design Optimisations", 44th Recontres de Moriond, 2/2009 - Christopher Lindsay NaumannCEA DSM Irfu 15
Conclusions and OutlookConclusions and Outlook
• KM3NeT consortium in the process of designing a kmKM3NeT consortium in the process of designing a km33 size detector for the Mediterraneansize detector for the Mediterranean
• large number of options for layout and technology studied, large number of options for layout and technology studied, narrowing parameter space downnarrowing parameter space down
• first values for sensitivity (non-optimised)first values for sensitivity (non-optimised) Conceptual Design Report ready (April 2008)Conceptual Design Report ready (April 2008)
• Next step: Finalisation of storey and detector layoutNext step: Finalisation of storey and detector layoutTechnical Design Report (TDR) end of 2009Technical Design Report (TDR) end of 2009
• construction of working prototypesconstruction of working prototypes• Start of construction foreseen 2011Start of construction foreseen 2011