John Womersley

WelcomeWelcome

John Womersley

Director of Particle Physics, CCLRC

International Scoping Study Meeting, RAL

April 2006

John Womersley

Neutrino Programme in CCLRCNeutrino Programme in CCLRC

MINOS• Operate detector and computing• Ensure a scientific return for the UK

in physics analysis

MICE• Deliver Phase I and II• Demonstrate muon cooling

Learn more about mixing angles (govern CP violation)

T2K• Secure a strong role for the UK in

detector and accelerator development and in physics analysis

• Build up UK neutrino community

Explore CP violationNeutrino Factory• Build community, create enthusiasm

for a neutrino factory • See the UK (RAL) as a logical site

Technology demonstration

John Womersley

MINOSMINOS

• Precision experiment to study νµ oscillations

• High intensity ν beam projected through the earth and measured in two large detectors:

– 1kT near detector at Fermilab– 5.4kT far detector 735km downstream,

located in the Soudan Mine, Minnesota• RAL has made a major contribution to the

design and construction of the two detectors and we are actively engaged in operations and analysis.

First results submitted March 2006

John Womersley

T2KT2K

• Primary aim

– Measure final mixing angle θ13 (µ → e)

– CP violation if large• Tokai to Super-Kamiokande

– 50 GeV PS, 0.75MW (Phase I)– Existing SK Detector, off-axis

• ‘narrow band’ ~ 1 GeV beam

• Accelerator construction underway– Beam in April 2009

• Proposed UK participation– CCLRC, QMUL, IC, Sheffield,

Liverpool, Lancaster, Warwick• Seedcorn funding• Full proposal with PPARC• Plan to focus on

– Beamline and beam dump• Accelerator expertise

– Near (280m) detector

JPARC neutrino beamline

John Womersley

MICEMICE

• To explore CP violation in the neutrino sector…

• Muon storage ring as a neutrino factory:

– requires storing muons within 2μs

– Ionisation cooling of the muon beam

– never been tried– MICE is the technology

demonstrator

• An international collaboration of ~150 physicists

• Phase I (Beamline & detectors) approved

• Want results by the end of the decade

4T solenoid& tracker

4T solenoid& tracker

Liquid hydrogen

Acceleratingcavities

prototypes

µ

John Womersley

MICE installation starts this year, in R5 next to ISIS

RF cavity test at Fermilab MICE Hall 2005

Tracker prototype at KEK

John Womersley

Statement by Statement by

Professor Keith Mason, Chief Executive of PPARC Professor Keith Mason, Chief Executive of PPARC

and by and by

Professor John Wood, Chief Executive of CCLRCProfessor John Wood, Chief Executive of CCLRC

John Womersley

• The observation of neutrino oscillations is probably the most important result in particle physics in the last decade. It points to the existence of new particles, new forces, or both. There is an international consensus that detailed measurements of neutrino properties are essential for the underlying theory to be discovered, and there are strong arguments that the best accelerator facility to address these issues is a Neutrino Factory, a high-intensity, high-energy neutrino source based on a muon storage ring. The Neutrino Factory is unique among future facilities for particle physics in that it could be hosted in the UK.

• CCLRC and PPARC recognise the excellence of the science and strongly support the R&D programme required to establish the full conceptual design for the Neutrino Factory. A cornerstone of the this programme is the MICE experiment which will take place at the Rutherford Appleton Laboratory (RAL). MICE is the first attempt to demonstrate the feasibility of muon-beam cooling and is being constructed by a collaboration of physicists and engineers drawn from Europe, Japan, and the US. In parallel, the international scoping study of a future Neutrino Factory and super-beam facility, launched by CCLRC with the support of PPARC, is laying the foundations for the international design-study phase.

John Womersley

(Timescale ~ June 2006)

(continued)

• The UK contributions to the MICE project and the UK Neutrino Factory collaboration’s R&D programme have always been supported jointly by CCLRC and PPARC. The two Councils recognise the strategic importance of the timely development of a full conceptual design of the facility and therefore seek to support:

– The implementation of Phase II of MICE and the exploitation of both Phase I and Phase II with the goal of delivering results on cooling by 2009/10; and

– The UK Neutrino Factory collaboration’s activity in the context of an International Design Study of the facility with the goal of producing an interim conceptual design report by 2009/10 and a full conceptual design report by 2011/12.

• To this end, the two Councils are working towards a call for proposals for accelerator R&D programmes. CCLRC and PPARC will continue to work together in strong support of both neutrino physics and accelerator R&D in the UK.

John Womersley

CCLRC CCLRC PPARC = ? PPARC = ?

John Womersley

http://www.ost.gov.uk/policy/nextsteps.pdf

John Womersley

Make no little plans…Make no little plans…

• ISIS• ISIS 1MW

upgrade• ESS-class 5MW

spallation source• Neutrino factory• Future multi-TeV

muon collider

Harwell Science and Innovation Campus

John Womersley

Welcome to RALWelcome to RAL

I wish you a most productive meeting…I wish you a most productive meeting…