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ICFA neutrino Panel

This document outlines key developments and strategic discussions of the ICFA Neutrino Panel from 2006 to 2012. Highlights include the initiation of the first European Strategy exercise, the International Scoping Study for a Neutrino Factory, and advancements in accelerator R&D. Notable milestones include the discovery of significant data related to neutrino properties and the potential for CP violation studies. The importance of cooperation among international neutrino research communities and the establishment of a robust long-baseline neutrino program is emphasized as critical for future experiments.

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ICFA neutrino Panel

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  1. ICFA neutrino Panel

  2. ICFA neutrino panel History

  3. 2006 • European community carrying out the first European Strategy exercise; • International Scoping Study for a future Neutrino Factory and super-beam facility in full swing • First study to review and compare on equal footing super-beam, beta-beam and Neutrino Factory • The EUROnu Design Study being prepared • I wrote to ICFA to suggest that ICFA had a role in promoting cooperation in the development of the neutrino programme

  4. 2006 (continued)

  5. Eu strategy Snowmass

  6. 2012: February • ICFA requested briefing on the International Design Study for the Neutrino Factory • Presentation included: • Review of long-baseline programme; • Status of IDS-NF and EUROnu: • And accelerator R&D work; • Summary of the conclusions of the ECFA neutrino panel • Asked whether ICFA had a role, perhaps as an “incubator” of the future long-baseline neutrino programme

  7. Daya Bay and RENO:

  8. Standard Neutrino Model: • Exciting new data! • Discovery of leptonic CP-violation is possible: • Best chance at the Neutrino Factory • Increases motivation for precision determination of the parameters and search for “non-standard effects” Fogli, Lisi, Marrone, Montanino, Palazzo, Rotunno arXiv:1205.5254v3

  9. 2012: July • ICFA requested briefing on role of Neutrino Factory now that θ13 is known to be large

  10. Elements of a staged programme: • Large value of θ13, makes it likely that the next generation long-baseline experiments will determine the neutrino mass hierarchy; • However, sensitivity to CP violation will be limited; • In the first instance, a combination of long-baseline (wide-band beam) experiments (e.g. LBNE/LBNO) and short baseline experiments (e.g. T2HK) may offer an attractive way forward: • In such an approach: • CP reach is limited by systematic effects; • Hints of CP violation would require follow up by the Neutrino Factory. • The Neutrino Factory is the facility of choice; • Consensus: • Will be required to:, • Complete the Standard Neutrino Model and to test whether it is a good description of nature • But, stored muon beams have not yet been shown to be capable of serving a world-class neutrino programme: • Require to push through R&D and complete IDS-NF, considering an incremental implementation in parallel; and • Establish a first, realistic, scientifically first-rate neutrino experiment based on a stored muon beam

  11. 2012: July • ICFA requested briefing on role of Neutrino Factory now that θ13 is known to be large • Presentation: • Explained opportunity (leptonic CP violation); • Argued that: • ICFA has a role in creating the conditions for competition moderated by cooperation informed by “enlightened self-interest”

  12. 2012: September

  13. Schedule: • Next ICFA meeting: • February 2013 • Desirable to have membership ready to propose to ICFA by Christmas 2012

  14. ICFA neutrino panel ICFA neutrino panelsteps taken

  15. Contacts made: • Americas: • Leaders/spokespeople in USA and Canada contacted: • Support for initiative • Suggestions for how to procede • Asia: • Spokespeople of T2K contacted; • Recognition (and I think interest in and support for) initiative • Takashi Kobayashi will discuss with Director General KEK • INO spokesman contacted • Europe …

  16. Europe: • Contacted the Steering Group that prepared the European Neutrino Town meeting and the input to the Strategy Update from the European Neutrino Community • Feedback positive • Contacted Manfred Krammer, ECFA Chair, to: • Ask how ECFA could be involved in: • The process of setting up the panel; • Ensuring that the work of the panel remains aligned with the European Strategy

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