Alain Blondel 4 March 2011 NEU2012 summary NEU2012: towards a concrete proposal by the neutrino community (emphasis on long baseline accelerator expts) (or: Laguna, EUROnu and others together) NEU2012 is a Network Activity (NA) of the FP7 Integrated Activity EUCARD (European Coordinated Accelerator R&D) Some history: started in 1998 with ECFA study groups Prospective Study of Muon Storage Rings European study of European Neutrino Factory Complex Then BENE network of CARE) International Scoping Study and input to CERN strategy now NEU2012 Alain Blondel 4 March 2011 NEU2012 summary Alain Blondel 4 March 2011 NEU2012 summary Prospective study of muon storage rings at CERN, ECFA-CERN CERN (1999) First study group discussion of CP violation in neutrino oscillations ECFA-CERN study of a Neutrino Factory Complex A.Blondel et al., eds. CERN ECFA March First discussion of superbeam/beta-beam/neutrino factory road map ISS reports Accelerator design concept for future neutrino facilities JINST, 4:P07001, 2009 Detectors and flux instrumentation for future neutrino facilities. JINST 4:T05001,2009. Physics at a future Neutrino Factory and super-beam facility Rept.Prog. Phys., 72:106201, Systematic performance comparison, first serious look into detector technologies European Strategy for Future Neutrino Physics YELLOW REPORT CERN Organized by CERN Oct as imput to SPC study (SPC document is given as appendix) Kickoff at CERN March Neutrino detector studies and possible experiment at CERN PSNEU Doing the best of existing infrastructures in Europe and at CERNReferences and Links Report of the SPC panel on Future Neutrino Facilities R.Aleksan, A.Blondel, P.Dornan, K.Meier/T.Nakada, A.Zalewska, F.Zwirner Report from the SPC: CERN/SPC/940 CERN/ Relations between CERN and the ongoing development work regarding future neutrino facilities. I. Summary -- Annex: Relations between CERN and the ongoing development work regarding future neutrino facilities. II. Supporting document The final report is signed by the SPC as a whole and published as conclusions of the workshop on European Strategy for Future Neutrino Physics YELLOW REPORT CERN The work of the panel: The initial observation (March 2009) was as follows: 1.there is no more a neutrino physics group at CERN 2.there are a number of accelerator activities -- CNGS -- EUROnu-related -- Linac4, SPL and other LHC injectors design but they are not coordinated 2 and detector activities (MINOS, OPERA, T2K, AIDA, (GLACIER, LENA, MEMPHYS) LAGUNA) 3. there are quite strong activities happening outside of Europe: T2K, NUMI (MINOS and NOvA), DUSEL, NFMCC 4. even inside Europe there are activities in neutrino oscillation physics with which CERN has little association (DCHOOZ, solar neutrinos, MICE, UKNF etc) Yet Neutrino physics is important and Europe should remain major player SPC meeting, Main Conclusions Neutrino physics provides unique window on physics beyond the Standard Model; what is learned with neutrinos cannot be learned at the high energy frontier (LHC, LC), although we may be very lucky and discover a connection between the TeV energy frontier and the neutrino paradigm. and There is a large active European community taking this challenge MINOS OPERA ICARUS DCHOOZ T2K EMMA, MICE, MERIT, EUROnu (LE superbeam, Beta-beam, Neutrino Factory) GLACIER, MEMPHYS,LENA (LAGUNA) AIDA(MIND&TASD) (Count at time of SG2006 was around 500 physicists) T2KK: T2K 1.66 MW beam to 270 kton fid volume Water Cherenkov detectors in Japan (295km) and in Korea (1050 km); DUSEL: a WBB from Fermilab to a 300 kton WC in Dusel (1300km); SPL 4 GeV, EU-BB and BB+SPL: CERN to Frjus (130km) project; NF bl is the Neutrino Factory baseline (4000km and 7000km baselines) and NF Py+INO represents the concrete baseline from CERN to Pyhasalmi mine in Finland (2285 km) and to INO in India (7152 km); PS2-Slanic is a preliminary superbeam study at 1500km based on an upgrade of PS2 to 1.66MW and a 100kton Liquid Argon TPC SPC meeting, Figure 2 A representative compilation of sensitivities of some future long baseline projects. Here the fraction of CP where CP violation can be observed at 3 standard deviations is plotted as a function of 13. Similarly for the sign of m 2 13 From the IDS-NF draft report clearly the neutrino factory is very powerful optimization of distance and muon energy is still open Long term strategy planning It is unrealistic to expect to have a high intensity neutrino source of any kind in Europe before early 2020s. By this time it is reasonable to expect that there will be many years of operating and upgrading Superbeams in Japan and in the USA. This should be closely followed. Thus if Europe is to be competitive in the 2020s it should concentrate on the R&D for a new intense source, i.e. the Neutrino Factory or the Beta Beam. It would be advisable to systematically review the progress and prospects of this work. SPC meeting, SPC report Nominal performance p.o.t./yr = 324 kW x 10 7 s Operating a High Intensity Facility NB similar limitations apply to beta-beam using SPS achieved = comments on CNGS 1.CNGS is the most super of todays superbeams. However. there seems to be little interest in the CNGS beam as is beyong OPERA. Main limitations being a) absence of near detector, b) high energy and c) intensity limitations. Beam needs to be rebuilt for e.g. electron neutrino search. 2. May as well build a new one pointing at either -- location >>1000km (where CP violation and matter effects can be separated) fine grain detector: segmented scintillator or liquid argon may as well foresee neutrino factory-type baseline (> 2000km) energy ~ 4 GeV PS2 superbeam and/or neutrino factory -- or