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

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long baseline neutrinos

Long Baseline Neutrinos

A.W., G. Barr, D. Wark

R. Guenette, A. Vacheret

content
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
minos
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%)
minos physics results
MINOS Physics Results

Neutrino Speed

slide5
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, …
t2k results
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

disappearance
νμ Disappearance

Dealtry: PRL 112, 181801 (2014)

Uncertainties indicate 68% confidence intervals obtained with Feldman-Cousins unified approach

lbno lbne f hyperk
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
mars soli
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
the world scene
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
uk strategy
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
oxford strategy
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
activities on t2k
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
physics
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
physics1
Physics

M. Bass

activities on lbnf
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)
activities on hyperk
Activities on HyperK
  • UK is one of the largest international collaborators
  • Oxford interests
    • DAQ
      • Hardware architecture
      • Physics studies
    • Near Detector
      • Reduce Systematics
daq hyperk
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
daq lbnf
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
daq microboone not cg
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
near detector
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
cg project manpower
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%)