Manchester and STFC and Particle Physics

Manchester and STFCand

Particle Physics

Roger Barlow

September 7th 2007

ResearchManchester

UniversitySTFC

Research Manchester

UniversitySTFC ParticlePhysics

Manchester Particle Physics A unique integrated group

over 100 strong

Large AND successful Group

Esteem Indicators• Spokesman for D0 (Wyatt)• Run Coordinator for ATLAS (Wengler)• Chair of PPGP (Lafferty)• Spokesman for FP420 (Cox)• Physics coordinator for D0 (Söldner-Rembold)• Chair of IoP HEPP group (Barlow)• TV appearances (Cox)• …..

Concentrate on aspects of our activity

most relevant for today’s visit: those where we interact with ex-CCLRC part of STFC, such as detector construction.

All our achievements in organisation and leadership and production of physics results will be largely ignored in this talk. Next visit?

However…

Building Experiments: history

Design and construction in-house of large drift chambers

JADE, OPAL, H1

Built half the endcap calorimeter

(in conjunction with Daresbury)

CP violation in B sector observed – and comprehensively measured

300+ papers

•

Trigger hardware and softwareAnalysis (first D0 Run II paper

by Söldner-Rembold)Leadership (spokesman,

physics co-ordinator)

Silicon tracker

Modules assembled ahead of time and better than spec.

Large team based at CERN (Wengler) leading trigger design to ensure that interesting events (top quarks) are not rejected

(needle in haystack problem)

Trigger

Tomorrow’s Experiments

SuperNEMOPrototyping drift tubes for module

construction

CALICEAssembly of 40,000 (?) silicon pads

FP420 - more later

Experiment: Electronics

• Electronics labs and engineers

• Design circuits

• Design circuit boards – routing software

• Build circuits – bonding machine

• FPGA programming

Newly refurbished labs

Experiment - future

Brunel group (Watts and DaVia)

3D silicon – for FP420 and ATLAS upgrade

particle

PLANAR

i

~ 500 mm

Active edge ~4m

p+

n+

------

++++

++++

--

--

++

30

0

m

50 m

3D

n+p+ n+n+n+ p+ p+p+ n+

3D versus planar3D versus planar

--

--

--

--

--

--

++++

++++

++

Manchester/Stanford Collaboration

Transfer to Industry in

progress – SINTEF

0

20

40

60

80

100

0 5 1015 1 1016 1.5 1016 2 1016

Sig

nal

eff

icie

ncy

[%

]

Fluence [n/cm2]

0 8 1015 1.6 1016 2.4 1016 3.2 1016

Fluence [p/cm2]

3D silicon C. DaVia et a. March 06

Diamond W. Adam et al. NIMA 565 (2006) 278-283

n-on-p strips P. Allport et al.IEEE TNS 52 (2005) 1903

n-on-n pixels CMS T. Rohe et al. NIMA 552(2005)232-238

C. Da Via'/ Aug.06

3x1015 p/cm2 = 10 years LHC at 1034 cm-2s-1

At r=4cm

1.8 x 1016p/cm2 = 10 years SLHC at 1035cm-2s-1

At r=4cm

Radiation HardnessRadiation Hardness Cinzia DaVia – Hiroshima Conf. 2006

World Recordfor a silicon detector !!

Experiment: summary

We have mechanical and electronic expertise.

Clean rooms and equipment in the group

Large Workshops in the School

An STFC (ex CCLRC)+ University partnership is not as simple as engineering+physics.

Theory

• QCD (Dasgupta, Forshaw, Seymour, Shaw)– Exploring new phenomena in QCD and applying to experiment

(e.g.FP420)– Understanding gluon radiation. Crucial at the LHC, e.g. in Higgs

production and other ‘New Physics’ processes– Simulating particle collisions: mused by all experiments as a

crucial part of their analysis (Herwig++)• New Physics (Pilaftsis, Forshaw)

– Anticipating and preparing for the LHC: supersymmetric phenomena, Higgs bosons and the origin of mass

– Understanding a universe with extra dimensions– Particle Physics in the early universe– Links to the astronomy group through common interest in

cosmology, inflation, CMB, dark matter, dark energy

Theory/Experiment

• Joint papers– Simulations of possible theories and their

experimental consequences

• Joint students– Very successful

• Crossovers (Schwanenberger, Peters)

Accelerators

Part of Cockcroft Institute

2 additional appointments (3rd ongoing)

5 RAs, 3 students. Rapid growth continues

Accelerators

Original purpose strongly aligned to ILC

RF, Beam optics, Beam dumps, collimators

Deeply embedded with ASTeC group at Daresbury

Now generalising to CLIC

Accelerators

Lead nsFFAG

project (£8M

Basic Technology).

EMMA now under construction at Daresbury.

Working with ASTeC + Daresbury + RAL + JAI + medics

Post-accelerated beams with the REX-ISOLDE (Radioactive Beam EXperiment On-Line Isotope Mass Separator)

HIE-ISOLDE

HIE-ISOLDE

HIE-ISOLDE In the first step: increase in REX energy from 3 to 5.5 MeV/u and later to 10 MeV/u, Proton Intensity 2 6 ASoI for HIE-LINAC (SC linac to 5.5 MeV/u) submitted by consortium of Cockcroft, Daresbury, and Universities. Jones and Butler(Liverpool) Co-PIs

A specific example: FP420

• Higgs production at LHC through glancing proton collisions

• Signalled by ‘rapidity gaps’ – emptyregions of the detectors – and outgoing protons

• . Experimentally observed at HERA (Cox), understood and simulated (ExHuME, Pomwig, ktJet) by Manchester physicists (Cox, Forshaw, Pilkington, Pilaftsis)

H

FP420

Diffractive protons measured by small precise detectors 420 m downstream (3D Silicon for Radiation hardness) close to beam (Watts, DaVia)

• Effects of detectors and beampipe modifications on LHC beam must be shown to be negligible (Jones, Potter)

• Manchester experiments + theory + accelerator groups working in combination

eScience

Grid Software (Andrew McNab and GridSite)

Working with Manchester Research Computing through eSNW

‘Grid Security’ = ‘Encouraging Grid users’

Working with RAL eScience team (also CERN, other universities, etc.)

.

Tier 2 centre

2000 CPU Cluster (University funded) run by Particle Physics (GridPP and EGEE funded). Right architecture, right support, heavily used

Major contributor to EGEE

eScience: more than just CPU cycles

Standard grid jobs – MC production, molecular modelling for biomedicine – relatively simple

More challenging:

ATLAS trigger simulation: need to reserve dedicated block and to ship large quantities of data

Grid farm for EM simulations – nodes build PVM

Data skimming forBaBar

Working with STFC

• Strengths– Positive and professional staff

• Weaknesses– Slow decision processes. Over-management and

bean-counting

• Opportunities– New initiatives, new partnerships. Daresbury Campus

• Threats– SR outcome.

Working at Manchester University

• Strengths– Healthy undergraduate and graduate recruitment– Top level commitment to world class research

• Weaknesses– Commitment not always consistent at lower levels

• Opportunities– Interactions with other groups

• Threats– RAE outcome

Conclusions

• Universities and Research Councils benefit greatly by working together

• Especially Manchester and STFC

• Particle Physics already does so, and welcomes the prospect of expansion in this area