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Muon g-2; deuteron EDM RHIC/AGS Users meeting BNL, 9 June 2006. Muon g-2 experiment (E969) to 0.25 ppm and deuteron EDM (dEDM) to 10 -29 e∙cm. Muon g-2: We made a presentation at P5 (27 March 2006) and expect a report from P5 ~summer 2006
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Muon g-2; deuteron EDM RHIC/AGS Users meeting BNL, 9 June 2006 Muon g-2 experiment (E969) to 0.25 ppmand deuteron EDM (dEDM) to 10-29 e∙cm • Muon g-2: We made a presentation at P5 (27 March 2006) and expect a report from P5 ~summer 2006 • dEDM: submit an LOI to BNL this Summer and proposal in 2007 Yannis K. Semertzidis Brookhaven National Laboratory Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
The Muon Storage Ring: B ≈ 1.45T, Pμ ≈ 3 GeV/c Sitting idle waiting for the next challenge… Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Error: 0.5ppm, Statistics dominated G.B. et al., Phys.Rev.Lett.92:161802,2004, hep-ex/0401008 Muon g-2 • Present result statistics limited • Theoretical error is expected to improve by a factor of ~2 • Upgrade: More muons/proton; upgrade detectors to take the increased rate • 0.25 ppm realistically achievable; up to 5-6 sigma difference possible Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
A factor of 2 improvement in BOTH experiment and theory • Upgrade the pion beamline to obtain more muons/proton • Upgrade the experiment to cope with the increased rate • Theoretical error is expected to be reduced by a factor of ~2 • …sensitivity to new physics improves substantially Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Largest contribution : QED hadronic weak g - 2 for the muon Other standard model contributions : The muon g-2 is sensitive to physics effects in an integral way… Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
New Physics Sensitivity (W. Marciano, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Errors from Theory and Experiment (W. Marciano, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Motivation (W. Marciano, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
The (g-2) discrepancy is consistent with other constraints on the SUSY LSP being the dark matter candidate. E821 error = 0.5 ppm scalar mass CMSSM calculation Following Ellis, Olive, Santoso, Spanos, from K. Olive gaugino mass Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Future Comparison: sE969 = 0.25 ppm; DE969 = Dnow Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Pions @ 3.115 GeV/c Decay muons @ 3.094 GeV/c Muon g-2 beamline • Open inflector x 2 • Quadruple the quadrupoles x 2 – 3 • Beam increase design factor x 4 – 6 Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
New segmented detectors of tungsten / scintillating- fiber ribbons to deal with pile-up • Prototype work and simulations underway • New custom electronics and DAQ Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
4 Billion e+ with E>2GeV Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Muon g-2 • Historically (g-2) has placed a major hurdle in the path of new theories beyond the standard model. • (See the letters from Altarelli, Davier, Ellis, Jackiw, Jaffe, Kane, Wilczek, Winstein sent to P5) • The (g-2) result must fit with other evidence into a consistent picture of new physics. • It will be important to particle physics even beyond the LHC era • e.g., determining the value of tan b Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Resonance Electric Dipole Moment Method In search of new physics through precision Electric Dipole Moment Experiments Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
B2T 10m D=0 D0 Orlov ring 5m Resonance Electric Dipole Moment Method Novel, moderate cost experiment, offering the next sensitivity level in hadronic EDMs Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
T + - + - P - + A Permanent EDM Violates both T & P Symmetries: Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
CPT T-Violation CP-Violation Andrei Sakharov 1967: CP-Violation is one of three conditions to enable a universe containing initially equal amounts of matter and antimatter to evolve into a matter-dominated universe, which we see today…. Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
2009 UCN-ILL 210-28ecm/yr 2011 UCN-LANL/SNS 110-28ecm Main competition: Neutron EDM Exp begin data taking Exp goal 2005 2007 2008 UCN-PSI 10-27ecm Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Storage Ring Electric Dipole Moments Y. Orlov et al., PRL 96, 214802 (2006) • D @ 10-29e·cm would be the best EDM sensitivity over present or planned experiments for QCD, quark, and quark-chromo(T-odd Nuclear Forces)EDMs. • P, D, 3He, etc., i.e. a facility to pin down the CP-violation source. • Systematics are different… Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Dipole Moments in Storage Rings • Dipole Moments in Storage Rings: Sensitive probes of physics beyond the SM • EDM: Probe of new CP-violation source • Muon g-2 upgrade at BNL (E969): March 2006, presentation to P5. Report due this Summer • dEDM: Submit an LOI to BNL for consideration this Summer and proposal in 2007. • Moderate cost, high physics potential experiments should be supported… Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Extra Slides Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
E969 Baseline – 0.25 ppm total error • Systematic error goals: • for wa: 0.1 ppm • for wp: 0.1 ppm • Statistical error goal: • for wa: 0.2 ppm • Total Error Goal: • am: 0.25 ppm (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Status and goal (W. Marciano, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Future measurements at VEPP-2000 • Factor >10 in luminosity • Up to 2 GeV c.m. energy • CMD-3: major upgrade of CMD-2 (new drift chamber, LXe calorimeter) • measure 2 mode to 0.2-0.3% • measure 4 mode to 1-2% • overall improvement in R precision by factor 2-3 Under construction. Data taking is expected to start is 2007-2008. Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Theory (W. Marciano, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Future Comparison: sE969 = 0.25 ppm; DE969= 0 Historically (g-2) has played an important role in restricting models of new physics. Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Field systematic uncertainties, ordered by importance (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Precession frequency systematic uncertainties, ordered by importance (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
The error budget for E969 represents a continuation of improvements already made during E821 (L. Roberts, P5) • Field improvements:better trolley calibrations, better tracking of the field with time, temperature stability of room, improvements in the hardware • Precession improvementswill involve new scraping scheme, lower thresholds, more complete digitization periods, better energy calibration Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Construction Operations construction operation Funding Profile by Year (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
BNL E969 Collaboration (L. Roberts, P5) R.M. Carey, I. Logashenko, K.R. Lynch, J.P. Miller, B.L. Roberts Boston University G. Bunce, W. Meng, W. Morse, P. Pile, Y.K. Semertzidis Brookhaven National Laboratory D. Grigoriev, B.I. Khazin, S.I. Redin, Y. M. Shatunov, E. Solodov Budker Institute of Nuclear Physics F.E. Gray, B. Lauss, E.P. Sichtermann UC Berkeley and LBL Y. Orlov – Cornell University J. Crnkovic, P. Debevec, D.W. Hertzog, P. Kammel, S. Knaack, R. McNabb University of Illinois at Urbana-Champaign K.L. Giovanetti – James Madison University K.P. Jungmann, C.J.G. Onderwater – KVI Groningen T.P. Gorringe, W. Korsch U. Kentucky P. Cushman – University ofMinnesota M. Aoki, Y. Arimoto, Y. Kuno, A. Sato, K. Yamada Osaka University S. Dhawan, F.J.M. Farley – Yale University Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Experimental Technique Central orbit Kicker Modules R=711.2cm d=9cm Electric Quadrupoles (L. Roberts, P5) Protons Pions Inflector (from AGS) p=3.1GeV/c Target (1.45T) Injection orbit • Muon polarization • Muon storage ring • injection & kicking • focus by Electric Quadrupoles • 24 electron calorimeters Storage ring Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Upper Pole Piece Space limitations prevent matching the inflector exit to the storage aperture (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
The E821 inflector magnet had closed ends which scattered away half the beam. (L. Roberts, P5) Length = 1.7 m; Central field = 1.45T Open end prototype, built and tested →X2 Increase in Beam Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Summary: E821 and E969 Costs E969 Costs (2006 M$) • E821 costs (M$) (as spent $) • Capital 25.0 1989-1998 • Operations 54.0 1998-2001 • Total E821 79.0 (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
1.0 g-2 Ring/Building maintenance 1 man month to engineer an air conditioning system for bldg 919 1.1 V/V1 Beam Lines 1 man-months engineering 1 man-months physicist 1.2 Inflector A quote from the Furukawa Company for superconductor 1.3 E Quads Nothing new, defendable 1.8 Kicker Nothing new, defendable 1.11 Cryogenics (to determine scope) 2 man-months engineering 1 man-month tech 1.12 Vacuum System 1 man-month engineering 1.14 Booster/AGS 0.5 man month engineering 0.5 man month physicist ES&H – review operation within present guidelines 1 man-month physicist 1 man month engineer Preparation of Cost Books, Resource Loaded Schedules, CD0-1 documents etc 4 man-months engineering 4 man--months physicist Summary 11 man-month engineering 7 man-month physicist 1 man-month tech Required Budget ~ $360K Calendar Time Required ~ 6-8 months Funds needed to baseline the costs (not included in construction cost estimate) (L. Roberts, P5) Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Cost Summary: E969 Construction (L. Roberts, P5) • Experiment Construction, Direct Costs M$ Contingency • G-2 Ring and building $ 0.56 21% • V/V1 Beam Line modifications $ 2.59 18% • Inflector (open ends) $ 0.64 19% • E-Quad rebuild $ 0.13 15% • Additional muon Kicker $ 0.41 15% • Cryogenic plant rehab $ 0.74 233% • Ring Vacuum System $ 0.16 29% • Equipment Testing $ 0.69 20% • Project Office $ 0.37 20% • Sub-Total, direct costs $ 6.3 • Indirects (reduced) $ 2.2 • Contingency (44%) $ 3.7 • Sub-Total, with indirects $ 12.2 • University (Detectors/DAQ) $ 2.4 • Total $ 14.6 FY 2006 $’s Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Cost Summary: AGS/Booster Restoration to High Intensity • AGS/Booster, Direct Costs M$Contingency • Electrical Modifications $ 2.11 22% • Mechanical Modifications $ 1.25 20% • RF System Modifications $ 0.67 22% • Instrumentation $ 0.34 20% • Project Support $ 0.33 34% • Controls $ 0.16 24% • ES&H (CAPS) $ 2.63 28% • Sub-Total, direct costs $ 7.5 • Indirects (reduced) $ 1.9 • Contingency (24%) $ 2.3 • Total $ 11.7 (L. Roberts, P5) FY 2006 $’s Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
E969 Operations Cost Summary (L. Roberts, P5) FY 2006 $’s • Year Wks w/RHICWks AlonePhysics WksCost (M$) 1st 12 0 3 $ 5.8 2nd20 0 15 $ 7.8 Total 34 0 18 $ 13.6 If warranted to push beyond 0.25 ppm, an additional 10-15 week run with RHIC adds ~$6-7M Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
Milestones/Timeline (by FY) (L. Roberts, P5) -1 0 +1 +2 +3 +4 +5 • CD0 Beamline design – backward/forward decision; detector prototype; simulations of injection, scraping, CBO damping; decide on scope of cryo work; begin tube/base development • +9 Months CD1; Begin electronics engineering • CD2 - Engineering on beamline, Cryo • CD3 - Start to order long leadtime items e.g. Inflector, rad-hard front-end magnets, etc.; Refurbish storage ring; develop on-line; develop NMR tools for 0.1 ppm. Construction • Shim magnet, improve on absolute calibration • CD4 - Finish construction, few weeks of low intensity beam • Commission experiment, engineering and short physics run • Major data collection run Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006
The ± 1 ppm uniformity in the average field is obtained with special shimming tools. (L. Roberts, P5) We can shim the dipole, quadrupole sextupole independently E969 will require additional shimming, monitoring and calibration 0.5 ppm contours Yannis K. Semertzidis, RHIC/AGS Users meeting, 9 June 2006