SNOLAB Science & Scientific Development Andrew Hime On behalf of the Experiment Advisory Committee Aug. 15, 2005 SNOLAB Surface Building
Workshops I.August 20, 2002 (Sudbury) Science & Information Gathering II. November 21-22, 2002 (Ottawa) Prospective Experiments & Infrastructure Needs III. May 12-14, 2004 (Sudbury) Refine Infrastructure Needs & Kick-Off Experiment Evaluation Process IV. August 15-17, 2005 (SNOLAB) Define Initial Suite of Experiments & Scientific Roadmap Begin Formation of User’s Group Call for LOI’s Jan.26, 2004
SNOSolar Neutrinos SNO + & SNO ++Solar Neutrinos & Double Beta Decay Lithium DetectorSolar Neutrinos CLEANSolar Neutrinos & Dark Matter MajoranaDouble Beta Decay GerDADouble Beta Decay EXODouble Beta Decay COBRADouble Beta Decay SuperCDMSDark Matter ZEPLINDark Matter XENONDark Matter DEAPDark Matter PICASSODark Matter COUPPDark Matter DRIFTDark Matter Noble Liquid Tracking DetectorsSolar Neutrinos HALOSupernovae Neutrinos LENAProton Decay, Solar Neutrinos, Supernovae Neutrinos NOSTOS Neutrino Oscillations ( 13 ) TRIGANeutron-Antineutron Oscillations Experimental Interest in SNOLAB
Solar + KamLAND 1 ~ 8 x eV 2 Matter Vacuum SNO SNO + CLEAN
Barger et al hep-ph/ ? Non-Standard Interactions ? Miranda et al hep-ph/ Friedland et al
… but a testable one nonetheless Adapted from New Yorker Magazine May 23, 2005
Jan |______|______|______|______|______|______|______|______|______| | | | | | | | | | | SNO Decom. SNO + _____ SNO Cavity _____ Rectangular Hal l _____ Ladder Labs _____ Cryo-Pit____ Early Small Space SNO + R&D SNO + Const. & Comm. ? Transition to SNO ++ ? Connect to 0 Solar Neutrinos HALO - PartialHALO - Full for Supernovae Neutrinos CLEAN Const. & Comm. CLEAN miniCLEAN-LNe Const. & Comm. miniCLEAN-LAr Const. & Comm. Connect to DM
~ 2 x eV 2 Atmospheric Hierarchy? Absolute Mass Scale?
~ 3 x eV 2 __ sin 2 13 Chooz et al Values of 13 & CP ? CP Violation in Neutrino Sector? Leptogenesis & Matter-Antimatter Asymmetry in the Universe? Additional CP Phases for Majorana Neutrinos Are Neutrinos their own Antiparticles?
Endpoint Energy e-e- e-e- Z+2 Z+1 Z e e-e- e-e- Z+2 Z+1 Z e e Decay Requires Massive Majorana Neutrino L=2
~ yrs ~ yrs ~ yrs 76 Ge Allowed Phase Space for a Majorana Neutrino Mass ~ yrs ~ yrs We Are Here Next Generation Our Dreams
Jan |______|______|______|______|______|______|______|______|______| | | | | | | | | | | _____ SNO Cavity _____ Rectangular Hal l _____ Ladder Labs _____ Cryo-Pit____ Early Small Space SNO ++ Double Beta Decay ? COBRA ? 30 kg GerDA at Gran Sasso Majorana Const. & Comm. 60 kg Majorana 120 kg180 kg Liquid EXO At WIPP. Gas EXO Prototype Gas EXO
Majorana Neutrino Mass & GUT Scale Seesaw Mechanism m D ~ 200 GeV m ~ eV M R ~ GeV !
halo bulge disk sun …the Milky Way We live in a dark universe …
CDMS-II rays neutrons Want to Improve by ~ 1000 or more!
Relative Sensitivities for BGND-Free Searches for Spin-Independent WIMPs CDMS-II Achieved CDMS-II at Soudan SuperCDMS 25 kg SuperCDMS 150 kg SuperCDMS ZEPLIN XENON DEAP miniCLEAN
Jan |______|______|______|______|______|______|______|______|______| | | | | | | | | | | _____ SNO Cavity _____ Rectangular Hal l _____ Ladder Labs _____ Cryo-Pit____ Early Small Space Dark Matter PICASSO 25 kg SuperCDMSCDMS-II at Soudan 10 kg DEAP 150 kg SuperCDMS ZEPLIN-II & III at Boulby250 kg ZEPLIN-IVZEPLIN-IV Staged to 1000 kg XENON-10 at Gran SassoXENON kg DEAP 2 kg 32 x 4.5 miniCLEAN LArminiCLEAN LNe COUPP 2 kg FNAL10 kg Const.100’s kg 3 kg 8 x 30 DRIFT I & II at Boulby100 kg DRIFT-III ? Plans for 1000 kg ? 25 kg100 kg
Experiment Advisory Committee Chair: Barry Barish Secretary: Andrew Hime Baha Balantekin (US) Cliff Burgess (CND) Ken Ragan (CND) John Martin (CND) Kate Scholberg (US) Takaaki Kajita (Japan) David Wark (UK) Scientific Merit Infrastructure Needs Progress on R&D Technical Feasibility Safety Funding & Schedule Participation & Management Letters-of-Interest (LOI’s) received have undergone EAC review … Letters-of-Response (LOR’s) have been drafted and distributed to points-of-contact … LOR’s included a set of “Queries” to which (many) of you have responded … Preliminary recommendations for the science program have been developed … New considerations on the table since previous workshop and initial call for LOI’s Use outcome of this workshop to refine vision and recommendations … Feed-back Wednesday morning …