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1/24/2006 EPAC 1 Strategic Overview: Particle and Particle Astrophysics Persis S. Drell Deputy Director Director, Particle and Particle Astrophysics

Strategic Overview: Particle and Particle Astrophysics

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Strategic Overview: Particle and Particle Astrophysics. Persis S. Drell Deputy Director Director, Particle and Particle Astrophysics. SLAC: A Lab in Transition. SLAC’s research vision is evolving dramatically. The balance and content of the scientific foci is changing in substantial ways - PowerPoint PPT Presentation

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Page 1: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 1

Strategic Overview: Particle and Particle Astrophysics

Persis S. DrellDeputy DirectorDirector, Particle and Particle Astrophysics

Page 2: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 2

SLAC: A Lab in Transition SLAC’s research vision is evolving dramatically.

The balance and content of the scientific foci is changing in substantial ways

Photon science is rapidly expanding It will be the dominant laboratory program by the end of

the decade. In 2009, the major accelerator-based facilities will both

be primarily serving photon science Particle Physics and Particle Astrophysics

Will no longer have forefront accelerator based HEP program on site.

Non-accelerator efforts will grow Will be serving user community at accelerator facilities

that will be off site e.g. ILC; other potential accelerator opportunities

Page 3: Strategic Overview:  Particle and Particle Astrophysics

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Photon Science Future X-Rays have opened the Ultra-Small World -- Realm of

SPEAR3 1012 photons/sec from high brightness undulator 400 eV –40 KeV 50 ps pulse limited coherence at x-ray wavelengths

X-ray Lasers will open the Ultra-Small and Ultra-Fast Worlds –Realm of LCLS 1012 photons/pulse 800 eV – 9 KeV 200 fs pulse at commissioning few * 10 fs within 1-2 years fully coherent at x-ray wavelengths

Page 4: Strategic Overview:  Particle and Particle Astrophysics

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Linac Coherent Light Source

LCLS Will Be The World’s First X-ray Laser

Page 5: Strategic Overview:  Particle and Particle Astrophysics

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LCLS: Remarkable Opportunities for Discovery Femtochemistry and

Biology Nanostructured

Materials Atomic Physics Plasmas and Warm

Dense Matter Imaging of

Nanoclusters and Single Biomolecules

X-ray Laser Physics

Page 6: Strategic Overview:  Particle and Particle Astrophysics

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Changes to Optimize Lab for its Future

New Laboratory Organization and Management Structure New structure is built around four new

directorates -- Particle & Particle Astrophysics, Photon Science, LCLS Construction, and Operations. Lab is better positioned to serve the two

science focus areas New structure stresses the importance of strong

and effective line management at the laboratory

Page 7: Strategic Overview:  Particle and Particle Astrophysics

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Previous SLAC Organization

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Page 9: Strategic Overview:  Particle and Particle Astrophysics

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Page 10: Strategic Overview:  Particle and Particle Astrophysics

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An Exciting and Challenging Time in Field of Particle Physics The Standard Model of quarks and leptons is fabulously

successful---and fabulously incomplete It only describes ~5% of the Universe Compelling Questions confront us

Within this decade a new accelerator is coming on line with potential to make dramatic progress in our understanding LHC We are also developing the accelerator for discovery in the

next decade: ILC Non accelerator strategies essential components

achieving our scientific goals Long term health and future of the field of HEP relies on

ILC Excellent progress towards international realization of such

a machine---but not a certainty Budgets are very constrained

Page 11: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 11

SLAC PPA Program: Exploiting the present and preparing for the future

Science now or soon B Factory (operations to 2008) GLAST (2007 – 2012/17) SLAC Participation in the LHC (2007 and beyond) Proof of principle experiments in accelerator research

R&D for science in the next decade (2010 and beyond) ILC (2016?) LSST (first light 2012??) JDEM (20??) EXO (2012?? if R&D successful)

R&D for farther future Accelerator Research

FFTB SABER

Page 12: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 12

Programmatic Priorities For the near term:

We must focus on B-factory performance and delivery of science to our largest user community

For the mid term: We must continue in our leadership role for the ILC

Highest priority new facility for the world community We must complete GLAST construction and develop the

ISOC Deliver the science to the user community

We must work to provide additional opportunities for science to the HEP user community in ~2012 e.g. LHC, LSST, EXO, JDEM,...

For the long term: The R&D in accelerator science is our hope for the future of

the field To make the next accelerator *after* the ILC technically

feasible and affordable

Page 13: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 13

Near Term Program: Science Now or Soon

B-factoryGLASTSLAC Participation in the LHC

Page 14: Strategic Overview:  Particle and Particle Astrophysics

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B-Factory Program PEP-II Accelerator

Collides e+ and e- with unequal beam energies at ECM=10.58 GeV

Premier tool for studying physics of heavy flavor

BaBar Detector Optimized for B-physics at

asymmetric energy collider Run by International Collaboration of

~623 physicists from 80 institutions in 11 countries

Program of Rich Physics B-factory program operates until

end of FY2008 Ultimate goal: Deliver to BaBar:

~1ab-1 end of FY2008 Laboratory committed to

delivering luminosity

Journal Papers

BABAR Belle

<2003 32 54

2003 39 28

2004 52 35

2005 60 36

2006 1 2

Total 184 155

Page 15: Strategic Overview:  Particle and Particle Astrophysics

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Machine Performance

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GLAST GLAST: -ray Large Area Space Telescope

GLAST measures direction, energy and time of celestial gamma rays from 20MeV – 300 GeV Gamma rays probe cosmological distances in a largely unexplored

energy range Great potential for Discoveries:

Fundamental Physics (dark matter,..) Cosmic Particle Acceleration (SNR, jets, ..) Physics of Relativistic Outflows (GRB’s, Pulsars, ..)

Joint Particle Physics/Particle Astrophysics venture Involves 5 nations, 9 funding agencies

Fabrication project has been challenging! Project successfully rebaselined summer 03 after CNES withdrew

financial support Transition to flight production much more painful than anticipated

and production anomalies summer/fall led to second rebaseline winter 05

Page 19: Strategic Overview:  Particle and Particle Astrophysics

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LAT Instrument

Page 20: Strategic Overview:  Particle and Particle Astrophysics

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LAT Instrument

Tracker/Converter (TKR): Silicon strip detectors. W conversion foils. 80 m2 of silicon (total). 106 electronics chans. High precision tracking, small dead time.

Calorimeter (CAL):1536 CsI crystals. 8.5 radiation lengths. Hodoscopic. Shower profile reconstruction (leakage correction)

Anti-Coincidence (ACD): Segmented (89 tiles). Self-veto @ high energy limited. 0.9997 detection efficiency (overall).

Page 21: Strategic Overview:  Particle and Particle Astrophysics

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ACD Installed

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GLAST Moving Forward Instrument is assembled and in final

testing Ship to NRL for environmental testing

at end of February Delivery to Observatory Integration in

summer Mate with spacecraft and GBM and

test Launch 8/07

Kennedy Space Flight Center Focus at SLAC transitioning to build up

of ISOC and preparation for science

Page 24: Strategic Overview:  Particle and Particle Astrophysics

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SLAC Participation in LHC Motivations:

Energy frontier Physics. Synergy between LHC and ILC.

Experience in detector and operations relevant for ILC.

To maintain a healthy work force for ILC Strong user interest from traditional SLAC user

community Our experience on detector/computing are seen as

valuable assets which could help ATLAS to prepare for the first physics at LHC.

The M&S cost is moderate and should be able to fit more flexibly into the Lab budget.

Good synergy with existing LARP participation Strongly supported by our theory community

Page 25: Strategic Overview:  Particle and Particle Astrophysics

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Proposed Areas of Involvement Specific proposal for SLAC participation in ATLAS

developed under leadership of Su Dong and Charlie Young

Four related items: Pixel detector Trigger Simulation Tier 2 computing center

Simulation production Calibration. Primary location for physics analysis. A really functional Tier 2 requires much more than keeping a

bunch of boxes running. Proposal for SLAC to join ATLAS is being presented to

you at this meeting Also considered CMS option

Page 26: Strategic Overview:  Particle and Particle Astrophysics

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Possible SLAC Physicist Profile

0

2

4

6

8

10

12

14

16

18

20

2006 2007 2008 2009 2010 2011

Year

FT

E

Trigger Simulation Pixel Analysis TBD

Page 27: Strategic Overview:  Particle and Particle Astrophysics

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R&D for science in the next decade: 2010 and beyond

ILCLSSTJDEMEXO

Page 28: Strategic Overview:  Particle and Particle Astrophysics

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ILC High Energy e+e- LC highest priority new machine for

world community SLAC has led field in development of LC design and

technology Champion of warm RF technology

How has the ‘cold’ technology choice impacted the lab? SLAC has always been committed to playing a leadership

role in ILC independently of choice of RF technology SLAC has accelerator expertise in all subsystems of the

collider R&D program now restructured to address critical issues for

cold machine SLAC fully supports GDE effort

SLAC staff are co-leading 4 of the technical subgroups

Page 29: Strategic Overview:  Particle and Particle Astrophysics

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ILC Machine R&D activities Restructured R&D program to align with the cold

decision Accelerator Design and CDR

e+e- sources Damping ring design Beam Delivery System Instrumentation and control systems

All being done as part of the coordinated GDE effort Some accelerator R&D may be directed for additional

support e.g. L-band power sources

Goals for near term: End of CY05: Select baseline configuration design End of CY06: CDR

Goals longer term: CY08/09: TDR

Page 30: Strategic Overview:  Particle and Particle Astrophysics

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ILC Detector Program Need to grow program of linear collider detector R&D

SLAC is working with LBNL and FNAL to provide opportunities for user community to engage

Simulation Effort Supports national and international effort

Concept development for a detector based on Silicon One of several approaches in the community

Effort is investment limited—particularly engineering Opportunities to grow with GLAST roll off You will hear a report on the status at this meeting

Page 31: Strategic Overview:  Particle and Particle Astrophysics

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LSST-Large Synoptic Survey Telescope 8.4 m ground based telescope

Wide field of view Weak lensing survey of entire

sky Dark matter power density

spectrum Constraints on Dark Energy

Proposed as joint DOE/NSF project SLAC lead lab on camera

development First light ~2012

R&D effort growing with GLAST roll off

LSST proposal in front of you at this meeting

* Dark matter and dark energy with weak lensing Full LSST survey will cover 20,000 square degrees, and resolve over 4 billion high-redshift (z ≤ 3) galaxies!

* Dark matter and dark energy with

supernovaeLSST will detect 250,000 type I-a supernovae (z ≤ 1) per year!

* Cluster survey and baryon

oscillations.

* Gravitational micro-lensing.

* Strong galaxy & cluster lensing:

physics of dark matter.

* Multi-image lensed SN time delays:

separate test of cosmology.

* QSO time delays vs z: independent

test of dark energy.

Page 32: Strategic Overview:  Particle and Particle Astrophysics

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The LSST Collaboration

Brookhaven National Laboratory

Harvard-Smithsonian Center for Astrophysics

Johns Hopkins University

Las Cumbres Observatory

Lawrence Livermore National Laboratory

National Optical Astronomy Observatory

Ohio State University

Pennsylvania State University

Research Corporation

Stanford Linear Accelerator Center

Stanford University

University of Arizona

University of California, Davis

University of Illinois

University of Pennsylvania

University of Washington

Page 33: Strategic Overview:  Particle and Particle Astrophysics

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2m

3.2 Giga-Pixel10 m CCD Array3.5° FOV

LSST Camera (shown with the secondary mirror of

the telescope)

Page 34: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 34

JDEM/SNAP 2m space based telescope—

LBNL lead lab Study high z SNe Dark

Energy Weak Gravitational lensing

Dark Matter Strong Lensing Small scale

structure Joint project DOE and NASA

SLAC involvement in OCU and possibly electronics

R&D effort growing with GLAST roll off

Anticipate full proposal at next meeting

Page 35: Strategic Overview:  Particle and Particle Astrophysics

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EXO: Enriched Xenon Observatory Search for decay in 136Xe-->136Ba++ e- e-

EXO Philosophy Excellent energy resolution (separates 0 from 2) Positive ID Ba Ion (Ba tagging)

Strategy: Currently EXO 200 is being built

Study detector performance (no Ba+ tagging) Look at backgrounds Measure 2 mode with 1-2 year run Sensitivity of ~0.2 eV to 0 mode

Continue R&D on Ba tagging for next 2-3 years In parallel with EXO 200 operations

Successful R&D would lead to proposal for full EXO (ton scale experiment) EXO goal: <me>~10’s of meV

Page 36: Strategic Overview:  Particle and Particle Astrophysics

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Strategic Elements of Accelerator Research

Accelerator Research for Future MachinesHigh Gradient Studies for CLIC type machineDevelopment of L-band power sources for ILC

Proof of Principle Studies of New Acceleration Mechanisms:

Plasma Acceleration Laser Acceleration

Page 37: Strategic Overview:  Particle and Particle Astrophysics

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Accelerator Research for Future Machines Accelerator Research for ILC

We are developing plans for R&D effort into alternative sources of L-band power for ILC Plug and play replacement to multi beam

klystron at lower cost More innovative technologies: high risk but high

gain High Gradient R&D for e+e- colliders past

the ILC National program being encouraged by DOE Redirecting some of resources (people) from

warm RF R&D to these efforts

Page 38: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 38

Proof of Principle Studies of New Acceleration Mechanisms Accelerator Research

E164/E164X running successfully (Plasma wake field acceleration) Talk by Mark Hogan Limited by finite lifetime

of FFTB Laser acceleration

experiment progressing in NLCTA Demonstrate and develop

new methods for accelerating electrons with laser radiation using solid-state structures

First runs this year

e-ion

column

F = -eEz

Page 39: Strategic Overview:  Particle and Particle Astrophysics

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SABER SABER (FFTB replacement) in proposal

development White paper outlining science case and project

description

Page 40: Strategic Overview:  Particle and Particle Astrophysics

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SABER Scientific Opportunities Plasma Wakefield Acceleration and Beam-Plasma Physics

Continuation of successful plasma acceleration program Extend to positrons

Magnetism and Solid State Physics Use intense E and B fields associated with the electron

bunches Studies of ultra-fast magnetization dynamics

Intense THz Light Source for Surface Chemistry SABER can produce ultra-short pulse of coherent THz radiation Studies of dissociation of aligned molecules at a surface &

other surface chemistry experiments Laboratory Astrophysics Experiments

Calibration of cosmic ray observational techniques Studies of dynamics of jet-plasma interactions

Inverse Compton Scattered Beam Photon energies to 18 GeV

Page 41: Strategic Overview:  Particle and Particle Astrophysics

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SABER ParametersEnergy Adjustable up to 30 GeV nominal. 28.5 GeV when the

Bypass Line is used concurrently with PEP-II operation.

Charge per pulse 2 x 1010 (3 nC) electrons or positrons per pulse.

Pulse length at IP (σz) 30 μm

Spot size at IP (σx,y) 10 μm nominal(5.2 x 5.4 μm achieved in computer simulations).

Momentum spread 4 % full width with full compression.

Momentum dispersion at IP (η and η’)

0

Drift space available for experimental apparatus

2 m from last quadrupole to focal point. Approximately 23 m from focal point to Arc 3 magnets. This space will be available for experimental use and for the dump line system, depending on user requirements. Further expansion is possible by removing unused arc magnets downstream.

Page 42: Strategic Overview:  Particle and Particle Astrophysics

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Looking Forward

Page 43: Strategic Overview:  Particle and Particle Astrophysics

1/24/2006 EPAC 43

Vision for HEP at SLAC Highest priority is given to B-factory operations

through FY2008 Delivery of science to our largest user community

Other program elements ILC/LCD

We hope resources saved to HEP by transfer of responsibility of accelerator operations to BES and eventual termination of B-factory program will be used to help build up national ILC R&D program

New and other reprogrammed resources will also be essential

We will compete through GDE process for some of those resources

We anticipate an aggressive growth model for ILC program at SLAC This must be matched by aggressive growth in the national

program

Page 44: Strategic Overview:  Particle and Particle Astrophysics

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Vision for HEP at SLAC

Other program elements (cont.) Non-accelerator based programs will grow SLAC Participation in LHC We will continue at roughly constant level:

Accelerator R&D Theory

Page 45: Strategic Overview:  Particle and Particle Astrophysics

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PPA Goals for 2009 Vibrant particle physics and particle astrophysics

programs ILC LHC GLAST and BaBar data Non-Accelerator Experiments (LSST, EXO, SNAP…)

Strong support for operating accelerator program (LCLS) transferred to photon science management

Thriving cross disciplinary programs Accelerator Research Scientific Computing

Strategic decisions now are focused on achieving these goals

Page 46: Strategic Overview:  Particle and Particle Astrophysics

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Summary

Enormous opportunities for world class science at SLAC

SLAC’s programs and leadership central to national and international effort

Programs are science driven, innovative, flexible and responsive to scientific drivers