1. Parallel session WP2 - Physics analysis and simulation (9:30 ->12:30) 09:30 Diffuse Galactic Flux -Andrew Taylor (DIAS) 09:55 MUPAGE status– Giada Carminati (Bologna) 10.15 LNS Studies – Rosa Coniglione (LNS) 10:40 Erlangen studies- Rezo Shandize (Erlangen) 11:00 coffee break 11:15 Dynamic range and showers - Jean-Pierre Ernenwein (Mulhouse) 11:40 Nessy Studies – Fabrice Cohen (Mulhouse) 12:00 Plans/Discussion – Paschal Coyle (CPPM) Manage password: wp20308 http://indico.cern.ch/conferenceDisplay.py?confId=30297

2. Recent (good) News WP2 contribution to CDR-EB (before xmas) (km3net portal/documents/CDR/wp2) –physics case –detection principles –optimisation studies -> reference detector –preliminary ‘requirements’ (incomplete) –physics performance (AGN, GRB analyses missing) Successfully passed mid term review (mid feb) (9 month extension announced) Year 2 yearly report-preliminary version feedback please as soon as possible Galactic diffuse flux paper-could be the guaranteed source Awaiting feedback from ICECUBE on ICETRAY framework

3. Reference Design (for CDR) ++ 225 strings (15 x 15) 36 storeys per string 21*3” PMTs per storey (equivalent to 3*10’’) total number of storeys 8100 storey distance 16.5m instrumented volume 1.022 km3 total PMT area 663m2

4. Diffuse flux Sensitivity– Reference Design Reference design 1yr

5. Point Source Sensitivity – Reference Design Reference design 1yr Reference design 1yr

6. Recent (not so good) News Loss of expertise due to turnover of postdocs/students –Sebastian Kuch, Erlangen (optimisations) ? –Fabrice Jouvenot, Liverpool (galactic diffuse flux) ? –Richard White, Leeds (AGNs) G. Haladijan (CPPM) –Jenela Petrovic, Nikhef (GRBs) D. Dornic (CPPM) –Claudine Colnard, Nikhef (SIRENE) ? New (wo)manpower - please contact me coyle@cppm.in2p3.fr

7. Pending Issues (from WP2@Catania) Input to technical specifications –time resolution (independent check desirable) –dynamic range (high energy electron showers) –charge resolution –2-hit separation (multi-muon rejection) Evaluation of NEMO geometry Evaluate effect of energy measurement on sensitivity Rejection of downgoing atmospheric muons Cost Model software from WP1 Reconstruction of electron and tau neutrinos energy resolution, direction resolution

8. CDR to TDR Need feedback from technical WPs –cubical geometry doable? –max height of lines? –recommended technical implementations (cost, reliability, feasibility) –costs and cost model Define 3-4 ‘practical’ designs of same cost, what cost? –reference –NEMO geometry –compact line –?…. Evaluate sensitivity for benchmark fluxes –Point source, diffuse flux, dark matter –For both muon & electron neutrinos Choose THE design (perhaps a backup?) Evaluate the physics performance for all physics channels

9. Interface with PP-WPD? WP2 tools to be used for evaluation of: –single versus multi-site issue –staging options dependent on funding profiles –options for future expansions (dense core?, UHE?) Prepare ‘final’ software for analysis of real data ? (Hopefully we will not use KM3/NESSY after DS!) –ICETRAY/SIRENE?, MM/PHOTONICS?, HOU/GDML? –incorporation of front end calibration constants –Incorporation of position/time dependent alignment –Inclusion of dead channels –etc.

10. Partner Contributions Source modelling: INFN, CEA, DUBLIN Atmospheric muons: INFN Galactic (CR) neutrinos: INFN, UK, CEA Galactic (HESS) sources: Erlangen, IN2P3, CEA, INFN Dark matter: INFN, Erlangen, IN2P3, UK, FOM Diffuse flux:INFN, Erlangen Extragalactic pt sourceUK, IN2P3 GRBs:Erlangen, FOM UHE:UHA-GRPHE, APC Shower reconstructionErlangen, FOM Neutrino flux generator: INFN software: FOM, IN2P3, Erlangen Multi-PMT geometry: FOM Directional PMT:INFN simulation of triggerINFN, FOM, Demo, HOU, Erlangen, IN2P3 Reconstruction algorithms: Erlangen,INFN, IN2P3, HOU, FOM, CEA Time,position calibration: UK, Valencia, Erlangen, INFN Absolute positioning : INFN(moon), HOU(surface array) Optimisation of design:ALL physics and analysis software calibration