Summary of Nufact-03 Alain Blondel NuFact 03 5th International Workshop on Neutrino Factories & Superbeams Columbia University, New York 5-11 June 2003 Highlights and personnal impressions part II

Summary of Nufact-03 Alain Blondel BETA BEAMS Concept proposed by Piero Zucchelli Produce radioactive ions (ISOL technique) Accelerate them in the CERN accelerator complex up to  of order 100 Store ions in a storage ring with long straight sections aimed at a far detector Advantages strongly focussed neutrino beam due to small Q value of beta decays (quality factor  /Q) very pure flavour composition (   contamination ~ ) perfectly known energy spectrum Baseline scenario studied at CERN (Mats Lindroos and collaborators) Recent progress presented at a special workshop at Moriond Possible synergy between beta beams and EURISOL Updated study of expected performances (Mauro Mezzetto)

Summary of Nufact-03 Alain Blondel A new idea for the ion source: using a pulsed ECR source Idea proposed by Pascal Sortais at Moriond workshop Based on experimental work done at Grenoble with Phoenix => High density/high frequency plasmas allow to produce efficiently short bunches (20  s instead of 20 ms) of ions with a high repetition rate (16 Hz) by pulsing the RF and the HV Advantages: Ions are already very well bunched and (hopefully) totally stripped This simplifies considerately the design downstream: Possibility to use a LINAC rather than a cyclotron or a FFAG Multiple turn injection in the storage ring becomes possible (40 turns)

Summary of Nufact-03 Alain Blondel New RFQ LINAC 3 PSB Simplification of the injection system P. Sortais, Moriond workshop

Summary of Nufact-03 Alain Blondel sin 2 

Summary of Nufact-03 Alain Blondel    and  measurements using superbeam and betabeam SPL: 2 years in  + 8 years in anti  BETABEAM: 10 years of 6 He AND 18 Ne (Mauro Mezzetto)

Summary of Nufact-03 Alain Blondel UPDATED CP sensitivity : domain of 99% CL effect for maximal CP violation