EUROEUROA High Intensity Neutrino Oscillation Facility in

Europe

• Introduction

• Superbeam

• Neutrino Factory

• Beta beams

• Detectors

• Physics

• Possible next steps

EUROnuEUROnu

• FP7 Design Study

• Due to limited funds: focus on possible “next” generationneutrino oscillation facilities in Europe

CERN to Frejus superbeam

Neutrino Factory (in collab. with IDS-NF)

Beta beams

• + performance of baseline detectors and physics reach

• Output: comparison of physics, “cost” & risk

• Reported to CERN Council via SG/ECFA

• Project started: 1st September 2008

• Duration: 4 years – completion in August 2012

PartnersPartners

Country Partner

Belgium Louvain

Bulgaria Sofia

France CEA

CNRS (4)

Germany MPG (3)

Italy INFN (3)

Poland Cracow

Spain CSIC (2)

Switzerland CERN

UK Durham

Glasgow

Imperial

Oxford

STFC

Warwick

Country Associate

Canada TRIUMF

France GANIL

Germany Aachen

India INO

Israel Weizmann

Portugal Lisbon

Russia IAP, Novgorad

JINR, Dubna

Switzerland Geneva

UK Brunel

USA Argonne

Brookhaven

FNAL

Virginia Tech

Muon Collaboration

StructureStructure

Work package

Activity Coordinator Deputy

WP1 Management, etc Edgecock (STFC)

WP2 Superbeam Zito (CEA) Densham (STFC)

WP3 Neutrino Factory Pozimski (IC) Martini (CERN)

WP4 Beta beams Wildner (CERN) Hansen (CERN)

WP5 Detectors Soler (Glasgow) Cervera (CSIC)

WP6 Physics Hernandez (CSIC)

Donini (CSIC)

Edgecock STFC

Dracos CNRS

Efthymiopoulos CERN

Long Imperial

EUROnu StatusEUROnu Status

• Baselines largely defined

• Design work still continues

• Moving more towards “engineering”

• Costing:

WBS being done

Framework being created using cost tool

Workshop planned soon

• Safety and risk also to be done

• Midterm technical review taking place

• 19 months left!

Super-BeamSuper-Beam

• Design of CERN to Frejus SB based on SPL

Super-BeamSuper-Beam

• Design of CERN to Frejus SB based on SPL

• Parameters:

4MW beam: HP SPL

5 GeV k.e. protons

130Km baseline

• Focus on solution for target + collector

• Determine performance for Physics reach

SB - TargetSB - Target

• Preference: static solid target

• Mercury jet – non-starter:

needs magnetic field containment

interaction with horn

not simple

• Low Z and 4 targets: small extrapolation

• Initial thoughts: 4*single graphite/beryllium target

SB - TargetSB - Target

SB - TargetSB - Target

Pebble-bed target

SB - HornSB - Horn

Baseline:

• Miniboone shape

• Aluminium

• Cooled with internal water jets

• Pulsed with 300-350kA

• Looks fine from stress and fatigue

• Lifetime due to radiation needs study

SB - HornSB - Horn

Very preliminary

Neutrino FactoryNeutrino Factory

• Close collaboration with IDS-NF

• IDR almost ready

Muon front-end

Muon acceleration

NF – Pion captureNF – Pion capture

NF – Pion captureNF – Pion capture

NF – Pion captureNF – Pion capture

NF – Pion captureNF – Pion capture

NF – Front-endNF – Front-end

Status: - advanced- awaiting MICE results- RF studies- alternatives under study

NF – AccelerationNF – Acceleration

The RLAs consist of single SC RF cavity cells and FODO quadrupole focussing throughout.

Chicanes have a vertical dipole spreader, horizontal bending magnets, quadrupoles for transverse focussing and a vertical dipole combiner.

0.6 GeV/pass 3.6 GeV

244 MeV

146 m

79 m

2 GeV/pass

264 m

12.6 GeV

0.9 GeVThe linac consists of SC RF cavities and iron shielded SC solenoids grouped into three types of cryo-modules.LINAC

RLA I

RLA II

NF – AccelerationNF – Acceleration

Non-scaling FFAG:Conceptual design

advanced.Engineering being

started.But, no such

machine ever built.Commissioning

underway.

Beta-BeamBeta-Beam

• Main issue in EUROnu: maximise ion production

• 2 options being considered

BB – Ion productionBB – Ion production

• EURISOL Beta Beam:18Ne and 6He

• Production

ISOL method18Ne 2x1013/s <8x1011/s 6He 2x1013/s >1x1013/s

direct production being studied

8Li 1014/s8B >1013/s

ion production ring

• Updated Beta Beam: 8Li and 8B – higher Q isotopes

BB – Ion productionBB – Ion production

But: >5* more ions – difficult to accelerate8B looks very difficult 18Ne looks possible, though experiment required

BB – Ion productionBB – Ion production

New baselineWork continues to optimise ion production rate

BB – Ion productionBB – Ion production

Type Accelerator Beam Ibeam

mA

Ebeam

MeV

Pbeam

kW

Target Isotope Flux

S-1

Ok?

ISOL & n-converter

SPL p 0.1 2 103 200 W/BeO 6He 5 1013

ISOL & n-converter

Saraf/GANIL d 15 40 600 C/BeO 6He 5 1013

ISOL Linac 4 p 6 160 700 19FMolten NaF loop

18Ne 1 1013

ISOL Cyclo/Linac p 10 70 700 19FMolten NaF loop

18Ne 2 1013

ISOL LinacX1 3He > 170 21 3600 MgO80 cm disk

18Ne 2 1013

P-Ring LinacX2 7Li 0.160 25 4 d 8Li ?1 1014

P-Ring LinacX2 6Li 0.160 25 4 3He 8B ?1 1014

Experimentally OK

On paper may be OK

Not OK yet

Possible

Challenging

Needs experiment

DetectorsDetectors

• Limited funding: only performance and “cost”

• Concentrate on baseline detectors

Magnetised Iron Neutrino Detector - NF

Large water cherenkov – SB and BB

Near detectors

• Hoped Laguna would be able to do LAr, e.g., !

Detectors - MINDDetectors - MIND

Golden channel signature: “wrong-sign” muons

Far detector: 100 kton at 2000-4000 km Magic detector: 50 kton at 7500 km Appearance of “wrong-sign” muons Segmentation: 3 cm Fe + 2 cm scintillator 1 T magnetic field

iron (3 cm) + scintillators (2cm)

beam15 m

15 m

B=1 T

50-100kT50-100kT

50-100 mIDS-NF baseline for 25 GeV NuFact: MIND

Detectors - MINDDetectors - MIND

Numu efficiency Anti-numu efficiency

New analysis with Nuance and GEANT4: signal efficiencies Systematic errors: ~1%

Background: ~10-4

Detectors - WCDetectors - WC

EuroNu, RAL, 19 January 2011

MEMPHYS: 3x65mx60m water Cherenkov modules (400 kton fiducial) but could be expanded to 3x65mx80m (572 kton)

Either SPL Super Beam or CERN Beta Beam to Frejus tunnel in Modane, France, 130 km from CERN.

81,000 12” PMTs (30% coverage)

65m

60m

MEMPHYS

440 kt

Detectors - WCDetectors - WC

R&D underway: new PMTs and readout electronics Prototype: MEMPHYNO under construction New WC simulation

MEMPHYS: interactive MEMPHYS: interactive μμ++500 MeV500 MeV

PhysicsPhysics

• Physics performance

• Optimisation:

baselines and energies

synergies: experimental setups and facilities

• Systematics

Next StepsNext Steps

• Technical review: April/May

• ECFA Neutrino Panel

Independent assessment

IDS-NF IDR

EUROnu annual report

• CERN Strategy Review: kick-off this summerreport next summer

• EUROnu contribution under discussion

• EUROnu future: also under discussion