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Future Perspectives in Neutrino Physics: Expanding Horizons with T2K, HyperK, and LBNF

Explore our past activities, involvement in MINOS, T2K, HyperK projects. Learn about T2K results, LBNE, HyperK developments, and personnel details. Discover UK and world situations, Oxford strategies, and upcoming plans.

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Future Perspectives in Neutrino Physics: Expanding Horizons with T2K, HyperK, and LBNF

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  1. Long Baseline Neutrinos A.W., G. Barr, D. Wark R. Guenette, A. Vacheret

  2. Content • Introduction • Our Activities in the Past • MINOS, T2K, LBNE, HyperK • MARS & SOLID • UK & World Situation • Oxford Strategy • Plans for the Future • T2K • HyperK • LBNF • 35t prototype, CERN test beam, • LA1-ND, MicroBooNE • Generic R&D

  3. MINOS • No funding on past CG • Additional resources from STFC & FNAL • Phased withdrawal • Recent results • ToF measurement • Complete disappearance measurement • Sterile Neutrinos • Nominal involvement • No further activities planned • Academics • Barr (5%) & Weber (5%)

  4. MINOS Physics Results Neutrino Speed

  5. T2K • Main activity of the group • Hardware (with RAL) • DAQ operational support & Experts (conv: Barr) • Electronics support & experts (conv: Weber) • Physics • Determining π0 BG (conv: Vacheret, O’Keeffe) • Cross section measurements (conv: Weber) • Disappearance measurement • Personnel • Ac: Barr, Wark, Weber; • Fellow: Vacheret • RA: Dewhurst, Lu (vice O’Keeffe) • Students: Waldron, Dealtry, Smith, Williamson, Jacob, Duffy, Shah, Dolan, Coplowe, …

  6. T2K Results Smith/Dewhurst: Use of off-axis spectrum change to measure pion/kaon production Williamson/Jacob: π0 production first complete result of a very challenging physics measurement

  7. νμ Disappearance Dealtry: PRL 112, 181801 (2014) Uncertainties indicate 68% confidence intervals obtained with Feldman-Cousins unified approach

  8. T2K Results

  9. LBNO, LBNE/F & HyperK • LBNO • European design study • Evaluating sites and detector technologies in Europe • Finished! • Is (probably) evolving into LBNF • Oxford Founding members of LBNE & HyperK • LBNE • US DoE project manager for DAQ (Barr) • Cosmic ray simulation (de Jong) • HyperK • DAQ (Barr) • Sensitivity (Shah) • No dedicated effort • Bid under PPRP review

  10. MARS & SoLi∂ • Technology development & short-baseline oscillations, derived from MINOS/T2K technology • MARS • Radiation detection • Corporation with UK company (Kromek) to develop handheld/backpack detector for neutron detection • STFC KE funding • SoLi∂ • Short baseline oscillation experiment (B, F, UK) • Vacheret is spokesperson • H2020 and PRD funding pending • partially funded in B & F • Personnel • Ac: Vacheret, Weber • RA: Ryder, (Scovell), Ihantola • EEng: Baird

  11. The World Scene • Neutrino physics high priority internationally • European Strategy for PP • P5 report in the US • HyperK & J-PARC beam upgrade • Major projects on MEXT long-list for future projects • Expect decision to go ahead in next 2 years • UK major player in large international collaboration • LBNF • P5 recommended LBL Neutrino Facility as highest priority for the domestic program • Future of Fermilab is tied to LBNF • Make it a truly international endeavour • Funding agencies and members of LBNE and LBNO are forming new collaboration/project as we speak

  12. UK Strategy • Exploitation • T2K for next ~ 5 years • Submitted SoI and proposal to position ourselves for major contribution to either HyperK and LBNF • 3 year preparatory phase • Several 10s of M£ over 10 years later • Push for 2 experiments • 10 + 10 = 14 institutions across the UK • Exploit synergies between experiments • Beam / targetry • DAQ • Near detectors

  13. Oxford Strategy • Position ourselves to play leading role whatever happens • Very active in LBNF and HyperK proposal • DAQ WP leader in both (Barr) • LBNF UK project manager (Weber) • Near Detector studies (LBNF WP manager: Weber) • HyperK UK co-leader (Wark) • Develop skills and expertise • 35 ton LAr prototype • CERN LAr test beam (aka WA105) • 1 kton H2O prototype • Don’t wait for physics in 10+ years • Exploit T2K • LAr Data analysis with MicroBooNE/LAr1-ND

  14. Activities on T2K • Background • Running for the next 5 years, mix of nu and anti-nu • Physics • Oscillation & cross sections • Hardware • DAQ & electronics support • Leadership • Electronics, DAQ, near detector • EC, UK spokesperson • Manpower • Ac: Barr, Wark, Weber • RAs: Dewhurst, Lu • Students essential to exploit physics

  15. Future Sensitivity

  16. Physics • Need more sensitive experiments • HyperK • H2O-Cherenkov, 1 Mton, 300 km baseline • 800 MeV neutrinos • No matter effect • Massive statistics • 750 kW beam power • LBNF • LAr, 40 kton, 1300 km baseline • 1000-6000 MeV neutrinos • Moderate matter effects • High resolution detector • 1.0  2.2 MW beam power • Both are needed to over-constrain neutrino-mixing

  17. Physics M. Bass

  18. Activities on LBNF • LBNF is not a single experiment • UK program that has several components to build up the capability and leadership • Main (LBNE) experiment • 35t prototype at Fermilab • MicroBooNE & LAr1-ND • CERN test beam (aka WA105) • Complemented by generic LAr R&D (Not part of CG) • Optical readout of LAr TPC @ RAL (Gunette/Bass)

  19. Activities on HyperK • UK is one of the largest international collaborators • Oxford interests • DAQ • Hardware architecture • Physics studies • Near Detector • Reduce Systematics

  20. DAQ (HyperK) • High energy events are easy • physics study of low E events to overcome combinatorial background (Dewhurst et al.) • Develop architecture in about 9 months • including info from physics studies • Use experience from LBNF 35t DAQ

  21. DAQ (LBNF) • LBNF DAQ • Prototyping 35t det@FNAL • practical experience with cryo-electronics incl. cold ASIC • Design choices influence DAQ • Oxford focus • software and management • Plan to expand into a more electronics/firmware (disc. ongoing) • DAQ green paper in preparation • Later prototyping in CERN test beam and LAr-1ND • Far detector might be (partially) installed in 2020 before beam arrives in 2025

  22. DAQ (MicroBooNE) not CG • Short Baseline LAr experiment in Fermilab booster beam (Guenette & Bass) • Search for sterile neutrinos • Prototyping LAr technology for physics • Oxford involvement • Muon veto: project manager • DAQ: lead in run control • Initial Comics data • Beam data in 2015 • Gain experience with LAr data • Reconstruction • interaction and oscillation analysis • LAr1-ND • ND to MB • planning and sensitivity studies

  23. Near Detector • LBL experiment require excellent control of systematics • Factors of 2-5 better than current experiments • Need highly capable ND systems to study nuclear effects on cross section and energy reconstruction • High pressure TPC is an option • Develop tool kid to design ND • Need for oscillation measurement • determine optimal configuration • Almost identical problem for LBNF and HyperK • Part of PPRP bid

  24. CG/project Manpower • T2K • Academics Barr, Vacheret, Wark, Weber • RAs Dewhurst (80%), Lu (80%) • HyperK • Academics Barr, Wark, (Weber) • RAs Dewhurst (20%), New (50%), w/ RAL (50%) • LBNF • Academics Barr, Guenette, Vacheret, Weber • RAs Dealtry (100%), Lu 20%, New (50%), (Bass) • HyperK & LBNF (DAQ/BE electronics) • PhysProg New (100%) • f/w Eng New (50-100%)

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