Nuclear Science

1
Nuclear Science the New Standard Model
Neutrinos Fundamental Symmetries in the Next
Decade
Solar ns the neutrino revolution
Fifty years of PV in nuclear physics
Michael Ramsey-Musolf, APS April, 2007
2
Community Input

• Pre-Town Meetings
• Santa Fe Nov 2006 ( 50 participants)
• Caltech Dec 2006 ( 50 participants)
• DNP Town Meeting
• Chicago Jan 2007 ( 370 participants)
• White paper (merging two)

Substantial work by the organizing committee
3
Primary Recommendation
New Standard Model Initiative
4
Scientific Questions, Achievements Challenges
5
Primary Scientific Questions
6
Scientific Achievements

• Discovery of flavor oscillations in solar
  neutrinos Solution of the solar neutrino
  problem 1300 citations
• Discovery of flavor oscillations in reactor
  neutrinos Identification of LMA solution over
  1000 citations
• Worlds most precise measurement of (gm-2)
  Possible first indications of supersymmetry over
  1000 citations
• Most precise measurement of sin2qW off the Z0
  resonance using PV Moller scattering constrains
  new physics at the TeV scale (Z, RPV SUSY)

7
Scientific Achievements

• Definitive test of large Dm2 oscillations by
  MiniBoone experiment (April 2007! )
• Definitive determinations of strange quark
  contributions to nucleon EM form factors using PV
  electron-proton electron-nucleus scattering
  confirmed theoretical estimates of hadronic
  effects in electroweak radiative corrections
• Quark-lepton universality tested to 0.05 using
  superallowed nuclear b-decay, yielding most
  precise value of any CKM matrix element (Vud)
  2006 Bonner Prize in Nuclear Physics recognizing
  work of Towner Hardy

8
Scientific Achievements

• Completion of a comprehensive set of computations
  of supersymmetric effects in low-energy
  electroweak observables 2005 Dissertation Award
  in Nuclear Physics to A. Kurylov
• Reduction in the theoretical hadronic uncertainty
  in extraction of Vud from neutron and nuclear
  b-decay
• New theoretical breakthroughs in simulating
  neutrino flavor transformation in supernovae
  modeling n flavor transformation effects
  nucleosynthesis with SNs understanding weak
  interaction effects in SN shock dynamics

9
Scientific Achievements

• 2007 Bonner Prize (S.J. Freedman) and
  Dissertation Award in Nuclear Physics (K.
  Milknaitis) for experimental work in neutrinos
• Four Bonner Prizes (Bowman, McDonald,
  Hardy/Towner, Freedman )
• Three Dissertation Awards (Heeger, Kurylov,
  Miknaitis)
• Also weak decays

10
Technological Achievements Investments
KATRIN, NexTex, MARE
b-decay Neutrino Mass
Total Lepton Number Neutrino Mass Term
0nbb-decay
Majorana
CUORE
EXO
GERDA
11
Technological Achievements Investments
Fundamental Neutron Physics Beamline at SNS
1.4 MW , 1 GeV H- beam on L Hg
Also new capabilities at LANSCE, NIST
Muon storage ring at BNL
ISAAC, RIBF.
CEBAF 12 GeV Up-grade
12
Technological Achievements Investments
DUSEL
Multi-purpose Facility
Site selection process proceeding at NSF
13
Challenges What role can low energy studies play
in the LHC era ?
(and beyond!)
14
Scientific Opportunities

• Major Discovery Potential
• 0nbb-decay EDM
• Precision measurements
• Neutrino mixing hierarchy
• Weak decays, PVES, gm-2
• Electroweak probes of QCD
• PVES, Hadronic PV, nN scatt

15
The Origin of Matter Energy
Baryogenesis When? CPV? SUSY? Neutrinos?
WIMPy D.M. Related to baryogenesis?
New gravity? Lorentz violation? Grav baryogen ?
?
16
0nbb-Decay LNV? Mass Term?
Dirac
Majorana
17
EDMs New CPV?
Improvements of 102 to 103
Electron
Neutron
Neutral Atoms
Deuteron
18
Baryogenesis EDMs Colliders
19
Precision Probes of New Symmetries
New Symmetries

1. Origin of Matter
2. Unification gravity
3. Weak scale stability
4. Neutrinos

20
Precision Neutrino Property Studies
Mixing, hierarchy, CPV
Long baseline oscillation studies CPV? Normal or
Inverted ?
21
Precision Neutrino Property Studies
Solar Neutrinos
22
Weak decays new physics
23
Weak Mixing in the Standard Model
24
Probing SUSY with PV Electron Scattering
25
Muon Anomalous Magnetic Moment
26
New Standard Model Initiative
A Road Map

• A robust neutrino program DUSEL ( exp)
  immediate 0nbb
• An EDM program nEDM (SNS), atomic, 2H RD
• Precision Electroweak PVES, b-decay, gm-2
• Supernova simulation observation
• Cross-disciplinary research support q13 , DM,
  CLV
• Theory focus on problems junior theorists

27
Resources Benefits
28
Resources
29
Project Funding for Neutrinos and Fundamental
Symmetries