Status of the T2K Experiment
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Status of the T2K Experiment. J-PARC PAC KEK July 6, 2007. Dave Wark Imperial/RAL. 1R- m Energy spectrum. SuperK. SNO. Soudan II. MACRO. 71 ±5. 71 ±5. KamLAND. Evidence for n oscillations from…. Early Solar Neutrino Exps. MINOS. K2K.

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Status of the T2K Experiment

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Status of the t2k experiment

Status of the T2K Experiment

J-PARC PAC

KEK

July 6, 2007

Dave Wark

Imperial/RAL


Evidence for n oscillations from

1R-m Energy spectrum

SuperK

SNO

Soudan II

MACRO

71±5

71±5

KamLAND

Evidence for n oscillations from…

Early Solar Neutrino Exps.

MINOS

K2K

Has shown that neutrinos have mass and oscillate.


Status of the t2k experiment

The Maki-Nakagawa-Sakata-Pontecorvo Matrix

Three Angles

If neutrinos have mass:

For three neutrinos:


Status of the t2k experiment

The Maki-Nakagawa-Sakata-Pontecorvo Matrix

Two mass differences

If neutrinos have mass:

For three neutrinos:


Status of the t2k experiment

The Maki-Nakagawa-Sakata-Pontecorvo Matrix

CP violating phase d

If neutrinos have mass:

For three neutrinos:


A happy announcement

A happy announcement…


Status of the t2k experiment

Current knowledge of oscillation parameters.

IAC07 T2K

Dave Wark

Imperial College/RAL

q23, Dm232

q12, Dm122

Solar + KamLAND

SK +K2K+ MINOS

MiniBooNE has failed to confirm the

single piece of counterevidence


Status of the t2k experiment

IAC07 T2K

J.W.F. Valle, hep-ph/0410103

Dave Wark

Imperial College/RAL

What about q13?


Three neutrino mixing

Three neutrino mixing.

If neutrinos have mass:

~0.03

~p/4

And sin22q13 < ~0.14


What will t2k add

IAC07 T2K

nm disappearance

sin22q13

sin22q23

Dm232

Dave Wark

Imperial College/RAL

What will T2K Add?

ne appearance

First phase of a longer programme which

could have sensitivity to CP violation!


Super kamiokande rebuild

IAC07 T2K

Dave Wark

Imperial College/RAL

Super Kamiokande Rebuild


Project integration and schedule

Project Integration and Schedule

  • 280m detector hall will not be fully available until February 2009, producing a severe challenge for the installation of the 280m detectors.

  • As recommended by the PAC, we have formed an Integration Group of the detector engineers, organized by Alan Grant and Cormac Neeson, to do detailed planning of the detector installation.

  • Meeting planned for July 10/11 at Imperial, 19 engineers will be in attendance.


Project integration and schedule1

Project Integration and Schedule


Project integration and schedule2

Project Integration and Schedule

  • Obviously such an integration programme is complex and interconnected (and something could slip), however…

  • Previously all installation was scheduled for Feb-March, now just the INGRID

  • For beam commissioning only the INGRID and muon monitors are really needed, and these have few linkages to the other detectors.

  • The neutrino spectrum can me measured with just the magnet, FGDs, and TPCs.

  • We should therefore be able to make efficient use of the beam from day one.


Other progress and issues

IAC07 T2K

Dave Wark

Imperial College/RAL

Other Progress and Issues

  • The T2K Collaboration has adopted an International Collaboration Agreement.

  • This replaces the provisional governing structure of the collaboration with a governing arrangement fairly typical of international HEP projects:

    • Spokesman and International Co-Spokesman

    • Executive Committee and Institutional Board

    • Publication policy

    • Speakers bureau…

  • We are forming new Working Groups for T2K-SK analysis and Global Analysis


Contributions and funding by country

Canada

Contributions:

All the FGD except photosensors

TPC mechanical and field cage, integration, gas system

Slow Controls and Monitoring

Cont. to Beamline: OTR Monitor, Remote handling for hot cell, beam position/profile monitors and vessel

Funding situation: secured with yearly review

France

Contributions:

INGRID detector (LLR)

TPC Micromegas and FE electronics (Dapnia)

TPC BE electronics (LPNHE)

Beamline quench detection system

Power supply for the UA1 magnet

Funding situation: secured.

Contributions and Funding by Country


Contributions and funding by country1

Germany

Contributions:

UA1 Magnet moving system

TPC gas monitoring

Funding situation: request submitted.

Italy

Contributions:

UA1 Magnet preparation

TPC elements?

Very uncertain…

Japan

Contributions:

J-PARC

Most of SK, and the SK rebuild and upgrades

Most of the T2K beamline, target, and beam dump including beamline monitors and muon monitor

Infrastructure for the 280m facility

INGRID detector

FGD photosensors

SMRD FEE

Cont. to NA61

Funding situation: secured, with additional funding from MEXT in form of competitive grants.

Contributions and Funding by Country


Contributions and funding by country2

Poland

Contributions:

Cont. to SMRD

Cont. to NA61

Funding situation: request submitted

Russia

Contributions:

Cont. to SMRD

Funding situation: secured

South Korea

Contributions:

Beamline proton monitor electronics

Funding situation: secured

Spain

Contributions:

TPC testing, calibration, and gas monitoring

Cont. to UA1 magnet

Funding situation: secured

Switzerland

Contributions:

Cont. to TPC mechanics, testing, and assembly

Major contributions to NA61

Major Cont. to UA1 magnet

Funding situation: secured subject to annual review

Contributions and Funding by Country


Contributions and funding by country3

United Kingdom

Contributions:

BEE for ECAL/P0D

/SMRD/INGRID

Cont. to beamline - beam window, baffle, and engineering for target and dump design, target remote handling

Basket/basket stand

ECAL (all)

FEE design for P0D/SMRD/INGRID

DAQ for 280m

Cont. to UA1 magnet

Funding situation: ~60% secured, funding for the Barrel and P0D ECALs deferred for decision this year.

United States

Contributions:

Cont. to SK, including upgrades, rebuild, and new SK electronics

P0D (all)

Beamline - SC corrector magnets, 2nd horn, monitor electronics and GPS

Cont. to SMRD

Funding situation: secured, with forward cash flow from institutions(!)

Contributions and Funding by Country


Overall funding situation

Overall funding situation…

  • Mostly good. The only major uncertainty for committed items is the UK funding for the ECAL, which we should find out later this year.

  • However:

    • There is no overall cash reserve or contingency for the project.

    • A number of items have been identified which fall in the cracks between commitments, the most notable of which is the magnet installation (precise cost estimates are not yet available for some of these items).


Magnet installation

Magnet Installation


Magnet installation1

Magnet Installation


Overall funding situation1

Overall funding situation…

  • Mostly good. The only major uncertainty for committed items is the UK funding for the ECAL, which we should find out later this year.

  • However:

    • There is no overall cash reserve or contingency for the project.

    • A number of items have been identified which fall in the cracks between commitments, the most notable of which is the magnet installation (precise cost estimates are not yet available for some of these items).

    • We tried to cover this by extending the operating Common Fund forward two years into the construction period.

    • This has not been immediately accepted by all funding agencies, and we are negotiating.

    • The total amount is small compared to the project cost, but the last bit is always hardest to find…


Overall funding situation2

Overall funding situation…

  • The situation with the final funding for completion should properly be the remit for an International Finance Committee made up of representatives from the funding bodies.

  • We would welcome help from KEK in rapidly forming such a committee to help us finalize funding arrangements for installation and integration.


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