thomas jefferson national accelerator facility r.. mckeown page 1 view from lab management r....

Thomas Jefferson National Accelerator Facility R.. McKeown

View from Lab Management

R. McKeownDNP12 Satellite Meeting

October 25, 2012


Outline• PAC and science program• New Projects Update

- Super Bigbite Spectrometer (SBS)- MOLLER- SoLID- others

• NSAC Subcommittee• MEIC


PAC 39 Result (June 2012)• Considered 13 new proposals, 6 previously

conditionally approved, 3 Letters of Intent,

• 5 Proposals recommended for Approval

• 6 Proposals deferred

• 5 Conditionally approved (C1 – do not return to PAC)

• 3 Conditionally approved (C2 - must return to PAC)


12 GeV Approved Experiments by Physics Topics

Topic Hall A

Hall B Hall C Hall D

Total

The Hadron spectra as probes of QCD(GluEx and heavy baryon and meson spectroscopy)

1 1 2

The transverse structure of the hadrons (Elastic and transition Form Factors)

4 3 2 9

The longitudinal structure of the hadrons(Unpolarized and polarized parton distribution functions)

2 2 5 9

The 3D structure of the hadrons(Generalized Parton Distributions and Transverse Momentum Distributions)

5 10 3 18

Hadrons and cold nuclear matter(Medium modification of the nucleons, quark hadronization, F N-N correlations, hypernuclear spectroscopy, few-body experiments)

3 2 6 11

Low-energy tests of the Standard Model and Fundamental Symmetries

2 1 3

Total 16 18 16 2 52


12 GeV Approved Experiments by PAC Days

More than 7 years of approved experiments


Proposal for Backlog Management

Re-evaluate Priorities Timing: ~2015Charge: select high impact experiments for 3 years

(beyond commissioning)•Nominally consider about 300 pac-days per hall

• Start with A rated approved experiments (+ selected others?)

• Equip. availability input from Hall Leaders


Other PAC Issues

• New charge (no longer “top ½ of first 5 years”)

• Reconsider proposal process for Hall B (parallel running) – possible impact on other halls (e.g., SoLID, Hall D)

• New categories for resource availability:- Stage I: resources need to be identified/obtained- Stage II: resources are essentially available


Future Projects

• Super BigBite Spectrometer(Approved for FY13-15 construction)- high Q2 form factors - SIDIS

• MOLLER experiment (MIE – FY14-18?)

- Standard Model Test

• SoLID (SIDIS, PVDIS) Chinese collaboration CLEO Solenoid?

Directors review: 2012-3


Other Projects/Upgrades

• Windowless target for proton charge radius experiment (NSF/MRI)• Hall B (CLAS12):

-Forward tagger (NSF/MRI + INFN)- planning for one-sector RICH for Hall B- Micromegas for CLAS12 (IRFU agreement)

• Backward-nucleon detector (Israel) and planning for p0 spectrometer in Hall C• Planning for Cherenkov and FCAL upgrade in Hall D

These are upgrades/enhancements to 12 GeV projects,still under development (various degrees).


Status: A’ Experiments

• APEX - completed test run (published)- awaiting radiation impact review, $$

• HPS - completed parasitic test run, now C1- review results, promote C1 Approval?- HEP funding…

• DarkLIGHT- completed test run at FEL- held briefing Oct. 22 for approval – more HW due- HEP/NP funding?


Charge to NSAC (4-5-2012)


NSAC subcommittee events

• Subcommittee met May 15 for planning• Presentations to subcommittee Sept. 7-9• NSAC, Sept. 21• Fall DNP (10/24-27 - Newport Beach, CA)

- Thurs. evening: mini-Town meetings- Fri. evening: DNP Town Meeting

• Subcommittee meeting ~mid-Nov.?• Report due: December 2012


White Paper

1 Executive Summary

2 Meson Spectroscopy, Hybrid Mesons & Confinement

3 The Internal Structure of Hadrons

4 QCD and Nuclei

5 The Standard Model and Beyond

6 Appendix A: Experimental Equipment


Jlab Presentations (Sept. 8)

8-8:45 MEP Overview R. Holt8:45-9:05 JLab Recent Accomplishments R. Ent9:05-9:35 JLab Future Science Program R. McKeown9:35-9:55 Meson Spectroscopy and GlueX J. Dudek9:55-10:15 Nucleon Imaging M. Guidal10:15-10:30 Break10:30-10:50 12 GeV Project Status C. Rode 10:50-11:10 Accelerator Science A. Hutton 11:10-11:30 Budget Impacts A. Lung11:30-11:45 Summary and outlook H. Montgomery


Electron Ion Collider

15

NSAC 2007 Long-Range Plan:

“An Electron-Ion Collider (EIC) with polarized beams has been embraced by the U.S. nuclear science community as embodying the vision for reaching the next QCD frontier. EIC would provide unique capabilities for the study of QCD well beyond those available at existing facilities worldwide and complementary to those planned for the next generation of accelerators in Europe and Asia.”

• White Paper developed by JLab/BNL communities, posted for comment

• JLab MEIC design well-developed, design report posted

• Next NSAC Long Range Plan?


MEIC Design Report

• ArXiv: 1209.0757

• Stable design for 3 years


Medium Energy EIC@JLab

JLab Concept

Initial configuration (MEIC):• 3-11 GeV on 20-100 GeV ep/eA collider• fully-polarized, longitudinal and transverse• luminosity: up to few x 1034 e-nucleons cm-2 s-1

Upgradable to higher energies (250 GeV protons)

Pre-booster

Ionsource

Transfer beam line

Medium energy IP

Electron collider ring

(3 to 12 GeV)Injector

12 GeV CEBAF

SRF linacWarm large

booster(up to 20 GeV)

Cold ion collider ring

(up to 100 GeV)


solenoid

electron FFQs50 mrad

0 mrad

ion dipole w/ detectors

ions

electrons

IP

ion FFQs

2+3 m 2 m 2 m

Detect particles with angles below 0.5o beyond ion FFQs and in arcs.Need 4 m machine element free region

detectors

Central detector Detect particles with

angles down to 0.5o before ion FFQs.Need 1-2 Tm dipole.

EM C

alor

imet

erH

adro

n Ca

lorim

eter

Muo

n D

etec

tor

EM C

alor

imet

er

Solenoid yoke + Muon DetectorTOF

HTC

C

RICH

RICH or DIRC/LTCC

Tracking

4-5m

Solenoid yoke + Hadronic Calorimeter

Very-forward detectorLarge dipole bend @ 20 meter from IP (to correct the 50 mr ion horizontal crossing angle) allows for very-small angle detection (<0.3o).Need 20 m machine element free region

MEIC: Full Acceptance Detector

7 meters

Three-stage detection


Summary

• PAC process evolving to match 12 GeV program

• Revisit priorities with PAC in ~2015• Queue of projects is making progress• We provided much input to NSAC

subcommittee• MEIC design, science case, moving forward

thomas jefferson national accelerator facility r.. mckeown page 1 view from lab management r....

Documents

mckeown page

gev approved experiments

rated approved experiments

hall cplanning

pac days

approved c2

approved c1

hall b micromegas