thomas jefferson national accelerator facility page 1 physics lrp december 8, 2011 glenn r. young...
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Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Glenn R. Young
Experimental Nuclear Physics Division Town MeetingJefferson Lab
December 8, 2011
12-GeV Upgrade“<5 years” Scientific Program
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Highlights of the 12 GeV Program
• Spin and Flavor Dependence of Valence Parton Distribution Functions
• Distribution of Charge and Current in the Nucleon
• New View of Hadron (and Nuclear) Structure: Generalized Parton Distributions
Determination of the quark angular momentum
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Highlights of the 12 GeV Program
• Exploration of QCD in the Nonperturbative Regime:
Existence and properties of exotic mesons
• Nuclear Structure in Terms of QCD
Spin and flavor dependent EMC Effect
Study quark propagation through nuclear matter
• Precision Tests of the Standard Model
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Hall D – exploring origin of confinement by studying exotic mesons
Hall B – understanding nucleon structure via generalized parton distributions
Hall C – precision determination of valence quark properties in nucleons and nuclei
Hall A – short range correlations, form factors, hyper-nuclear physics, future new experiments (e.g., PV and MOLLER)
12 GeV Scientific Capabilities
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Detector Performance Requirements
Hall D Hall B Hall C Hall A
excellent hermeticity
luminosity 1035
energy reach installation space
polarized photons hermeticity precision
Eg~8.5-9 GeV 11 GeV beamline
108 photons/s target flexibility
good momentum/angle resolution excellent momentum resolution
high multiplicity reconstruction luminosity up to 1038
particle ID
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
12 GeV Upgrade Schedule
Hall A: fabrication delayed to FY12 start; first Hall to receive beam 10/2013
Hall D: new; early access to allow for solenoid work; re-planned installation to accommodate solenoid test and maintain detector installation; beam 4/2014
Hall C: requires SOS removal; limited by funding rate; last to receive beam 10/2014, w/Hall B
Hall B: requires CLAS removal; limited by funding rate; last to receive beam 10/2014, w/ Hall C
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
12 GeV Science Program
• The physical origins of quark confinement (GlueX, meson & baryon spectroscopy)
• The spin and flavor structure of the proton and neutron (PDF’s, GPD’s, TMD’s…)
• The quark structure of nuclei
• Probe potential new physics through high precision tests of the Standard Model
Program Advisory Committees (PAC) 30, 32, 34, 35, 36, 37, 38
– 2006 through 2011
– 48 experiments approved; 7 conditionally approved
– PAC39 scheduled June 2012
Exciting slate of experiments for 4 Halls planned for initial five years of operation!
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
12 GeV Approved Experiments by Physics Topics
E12-11-105 has not been counted with the experiments since it is considered a test
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
12 GeV Approved Experiments by PAC Days
• Hall B has substantial parallel running• Hall A PV experiments have long running times
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Glueballs and hybrid mesons
5/10/201010 Seminar - Argonne National
Laboratory
DefinesBeam
Energy :12 GeV
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Hall D “GlueX” Experiment
Lead Glass
Solenoid
Target CerenkovCounter (future)
Time ofFlight
BarrelCalorimeter
Upstream Veto
12 GeV Electron Beam
PhotonsBremsstrahlung
Tagger
DiamondCrystal
Tracking
Scope matches 12 GeV Upgrade technical performance requirements
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Deeply Virtual Exclusive Processes - Kinematics Coverage of the 12 GeV Upgrade
JLab Upgrade
Upgraded JLab hascomplementary& unique capabilities
unique to JLaboverlap with other experiments
High xB only reachablewith high luminosity H1, ZEUS
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Quark Structure of Nuclei• (Nucleons and Pions) or (Quarks and Gluons)?• Not a simple convolution of free nucleon structure with Fermi motion• In nuclear deep-inelastic scattering, look directly at the quark structure of
nuclei
Counts/hour/ (100 MeV)2 (100 MeV2) for
L=1035 cm-2 sec-1
12 GeV Upgrade Provides Substantially Enhanced Access to the DIS Regimewith enough luminosity to reach the high-Q2, high-x region!
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Hall C “SHMS”
SHMS
HMS
Shield House for Detectors
Detector PackageInside Shield House
Three Superconducting Quadrupole Magnets
SC Dipole Magnet
Scope matches 12 GeV Upgrade technical performance requirements
Horizontal Bender
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
SHMS Detectors in Shield House
DipoleNG Cerenkov
Wire Chambers
HG Cerenkov
S1X S1Y
S2X S2Y
Aerogel
Calorimeter 116 cm
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Differe
nt colors
for upgra
ded sy
stemsHigh Resolution
Spectrometers
Møller Polarimeter
Compton Polarimeter&
Arc Energy Measurement
PRESENT HALL A - SCHEMATIC VIEW
E12-06-114: DVCS at 11 GeV in Hall A
JLab12 with 3, 4, 5 pass beam (6.6, 8.8, 11.0 GeV)
88 days 250 k events/settingJLab @ 6 GeV
Absolute cross-section measurements
Test of scaling
Increased kinematical coverage
Well described by leading twist contribution
Significant deviation from Bethe-Heitler
Results from E00-110:
Upgraded PbF2 calorimeter
built and tested
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
CLAS12 Detectors
Silicon Vertex Tracker
Central Time of Flight
Solenoid
High Threshold Cerenkov
3 Regions of Drift Chambers
Torus
3 Panels of Time of Flight –1a & 2 reused
from CLAS
Low Threshold Cerenkov – Reused
from CLAS
Electromagnetic Calorimeter –
Reused from CLAS
Pre-Shower Calorimeter
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
CLAS12 Experiments – Optimal Running Proposal Physics Contact Rating Days Group all equipment
available day 1Energy Group Target
E12-07-104 Neutron magnetic form factor G. Gilfoyle A- 30
90
Neutron detectorRICHIC 11 A
liquidD2 target
PR12-11-109 (a) Dihadron DIS production Avakian
E12-09-007a Study of partonic distributions in SIDIS kaon production K. Hafidi A- 56
E12-09-008 Boer-Mulders asymmetry in K SIDIS w/ H and D targets M. Contalbrigo A- TBA
11-003 DVCS on neutron target S. Niccolai A 90
E12-06-108 Hard exclusive electro-production of π0, η P. Stoler B 80
119
RICHICForward tagger
11, 8.8, 6.6 B
liquidH2
E12-06-112 Probing the proton’s quark dynamics in Semi-Inclusive pion production
H. Avakian A 60
E12-06-119 Deeply Virtual Compton Scattering F. Sabatie A 80
E12-09-103 Excitation of nucleon resonances at high Q2 R. Gothe B+ 40
E11-005 Hadron spectroscopy with forward tagger M. Battaglieri A- 119
PR12-11-103 DVMP of ρ , ω, φ M. Guidal
E12-06-106 Color transparency in exclusive vector meson electroproduction off nuclei
K. Hafidi B+ 60 60 11 C Nuclleartargets
E12-06-117 Quark propagation and hadron formation W. Brooks A- 60 60 11 D Nuclear
E12-10-102 Free Neutron structure at large x S. Bueltman A 40 40 Radial TPC 11 E Gas D2
E12-06-109 Longitudinal Spin Structure of the Nucleon S. Kuhn A 80
170
Polarized targetRICHIC
11 F
NH3ND3
E12-06- 119(b) DVCS on longitudinally polarized proton target F. Sabatie A 120
E12-07-107 Spin-Orbit Correl. with Longitudinally polarized target H. Avakian 103
PR12-11-109 (b) Dihadron studies on long. polarized target H. Avakian
E12-09-007(b) Study of partonic distributions using SIDIS K production K. Hafidi A- 110
E12-09-009 Spin-Orbit correlations in K production w/ pol. targets H. Avakian A- 103
PR12-11-109 SIDIS on transverse polarized target M. Contalbrigo Transverse target 11 G HD
TOTAL run time 1231 539
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Items Also Needed - In-Hand or TBA
• Existing– spectrometers – HMS, both HRS– Targets (H, D, 3He, HD, …) (polarized)– Detectors – Big Bite, polarimeters, calorimeters
• Devices underway (in various stages)– Neutron detector, forward vertex, forward tagger– Aerogel Cerenkov, TOF slats, neutron polarimeter
• Devices foreseen– RICH for K/pi (Halls B & D)– Super BigBite– SOLID, Møller, other large experiments
(! This is by no means exhaustive)
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Backup Slides
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Detectors Construction Cost Summary
Experimental Equipment/Physics Cost
Experimental Systems Experimental Systems by Sub-system
(FY11$K Direct)Construction 93,621
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
Magnets
Detectors
Computing
Fast Electronics
Beamline
Infrastructure
Magnets
Detectors
Computing
Fast Electronics
Beamline InfrastructureSolenoid
Detectors
Computing
Electronics
Beamline
Infrastructure
Comparison of Major Costs: Halls D, B, and C
Hall D Hall B
Hall C
existing magnet
Most detectors funded through
NSF/MRI grant and foreign
contribution
2008 NSF/MRI grant approved for ~1/2 of PCal costs
Part on WFO funds
Thomas Jefferson National Accelerator Facility
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Physics LRP December 8, 2011
WBS 1.4 & 1.5 Construction Cost Summary
IPR Oct 2011 (August 31, 2011 Data)
WBS Halls
EAC FY11$K Direct
BAC Burdened & Escalated $K
1.4.1. Hall A 508 588
1.4.2. Hall B 31,581 33,941
1.4.3. Hall C 22,938 24,113
1.5. Hall D * 38,594 41,825
1.4 & 1.5 Total 93,621 100,467
1.9.5, 1.9.7
WFO Hall D Detectors and Infrastructure 5,201 5,291
* Includes $8M Spare Solenoid