Neutrinos 20 December Alain Blondel DPNC seminar 16 november 1
1998 Neutrinos have mass (SuperKamioKande, SNO) The discovery that neutrino flavours transform (Neutrino Oscillations) was a long process initiatedin 1968 and completedin 1998-2001. Neutrinos have mass! There is no unique way to incorporate this in the Standard Model It almostcertainlyimpliesthe existence of -- new mass-generation mechanism --new phenomenasuchas right-handedneutrinos possible explanations for the baryon asymmetry of the universeand for darkmatter This opens a deep field of research for many many years Neutrino masses? Mixings? Ordering? Majorana mass term? ev, kev, GeV, TeV,, ZeVRH neutrinos? A first step is the full understanding of the neutrino mixing and in particular the discovery and measurement of CP violation by neutrinos. SHIP, HL-LHC, FCC-ee/hh 20 December Violation de CP = Les antineutrinos n oscillent pas comme les neutrinos Alain Blondel DPNC seminar 16 november 2
NA61, T2K, T2K-II and HyperK 神岡 Kami oka 東海 Tō kai 3 3
Idea of T2K was born 1999-2001 hep-ex/0106019 combining: -- existing SuperKamiokande detector (50kton W.Č., 22.5 kton fiducial) -- JAERI-KEK Japanese Proton Accelerator Research Complex (JPARC) at TOKAI including a high power, 0.75MW/30GeV Proton Synchrotron neutrino beam from pion decay π + µ + ν µ -- baseline 295 km neutrino energy for first maximum is ~650 MeV achievable by pion-decay beam at 2.5 degrees off-axis 4
20 December Alain Blondel DPNC seminar 16 november 5
20 December Alain Blondel DPNC seminar 16 november 6
20 December Alain Blondel DPNC seminar 16 november 7
T2K = Tokai to KamioKa neutrino experiment 2015 Breakthrough prize for discovery of νµ νe Oscillation 0.45 MW (proton+c-> neutrinos) beam 50 ton SuperKamionande WC detector 2σ indication of CP violation -2026 upgrades to reach 1.3 MW beam power up to 4σ evidence for CP violation 300-600 kton HyperKamiokande WC detector precise measurements (5-10o) 神岡 Kami oka 20 December 東海 Alain Blondel DPNC seminar 16 november Tō kai and-. proton decay Supernovae till Andromeda relic supernovae neutrinos8
E. Noah, Y. Karadhzov, S. Parsa 20 December Alain Blondel DPNC seminar 16 november to beinstalledin ND280 in summer2017 9
Step1 (sameprocessfor bothback and front parts) Aluminium frame assembly, Plastic spacers and Aluminium plate on the back. 45 orientation (to secure the assembly) Laurent NICOLA / Franck CADOUX CERN meeting November 3, 11
Step2 (sameprocessfor the back and the front parts) Half module frame Transfert on another assembly structure + Scintillating bars insertion(first, the vertical ones, then the horizontal ones ). Laurent NICOLA / Franck CADOUX CERN meeting November 3, 12
Step3 (sameprocessfor bothback and front parts) Insert the inner reinforcements. Laurent NICOLA / Franck CADOUX CERN meeting November 3, 13
Step 4 2 parts of module assembledand boltedtogetherwithbraces(spacer ) Laurent NICOLA / Franck CADOUX CERN meeting November 3, 14
The Baby-MIND module prototype in words The mechanical module in a few numbers 222 SiPM and connectors 95 horizontal scintillating bars 16 vertical scintillationg bars 6 reinforcements 16 plastic spacers 2 aluminium plate 8 aluminium flat bar for the frame 18 stoppers 14 braces 3 pairs of cover 926 screws ~200Kg without cables and electronics Laurent NICOLA / Franck CADOUX CERN meeting November 3, 15
Integrationon Armcomagnet Step 1 Lift the wooden plate with Module after bottom structure is disassembled Laurent NICOLA / Franck CADOUX CERN meeting November 3, 16
Final step Fixthe module on the Armcomagnetwith4 M10 screwson the interface corner and sustainthe bottomsideof module by 3 balljoint screws. Nice object Laurent NICOLA / Franck CADOUX CERN meeting November 3, 17
Electronics (Y. Favre) DAQ (Y. Karadhzov) 20 December Alain Blondel DPNC seminar 16 november 18
test beam21/06/2017 12/07/2017 then packing & transport to Japan
Near detector upgrade for T2K-II A.B., M. Rayner 20 December Alain Blondel DPNC seminar 16 november 20
ND280 upgrade simulation D. Sgalaberna 20 December Alain Blondel DPNC seminar 16 november 21
JOYEUSES FÊTES à TOUS! 20 December Alain Blondel DPNC seminar 16 november 22