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Nuclear Science & the New Standard Model: Neutrinos & Fundamental Symmetries in the Next Decade

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The next decade presents NP with a historic opportunity to build on this legacy in developing the “new Standard Model”

The value of our contribution will be broadly recognized outside the field

Nuclear physics studies of ns & fundamental symmetries played an essential role in developing & confirming the Standard Model

Our role has been broadly recognized within and beyond NP

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, NSAC March, 2007

- Pre-Town Meetings:
Santa Fe Nov 2006

Caltech Dec 2006

- DNP Town Meeting
Chicago Jan 2007

- White paper (merging two)

Substantial work by the organizing committee

- What are the masses of neutrinos and how have they shaped the evolution of the universe? 0nbb decay, q13, b decay,…
- Why is there more matter than antimatter in the present universe? EDM, DM, LFV, 0nbb, q13 …
- What are the unseen forces that disappeared from view as the universe cooled? Weak decays, PVES, gm-2,…

Tribble report

Tribble report

- What is the internal landscape of the proton? PVES, hadronic PV, n scattering,…
- What causes stars to explode? Large scale supernova simulations, n flavor transformation…
- What is the origin of the heavy elements from iron to uranium? Weak interactions and n interactions in heavy nuclei,…

- 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
- World’s 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…)

- 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

- 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 SN’s; understanding weak interaction effects in SN shock dynamics

- Development of a EFT treatments of parity violation in the nucleon-nucleon interaction that will guide the future experimental program at the SNS and NIST
- Reduction in theoretical uncertainty in QRPA computations of 0nbb decay matrix elements
- Substantial technical developments opening the way for searches for the permanent EDMs of the neutron, neutral atoms, deuteron and electron with 2-4 orders of magnitude greater sensitivity

b-decay:Neutrino Mass

KATRIN, NexTex, MARE…

Total Lepton Number & Neutrino Mass Term

0nbb-decay

Majorana

CUORE

EXO

GERDA

Multi-purpose Facility

DUSEL

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, RIAcino….

CEBAF 12 GeV Up-grade

Two frontiers in the search for new physics

Collider experiments (pp, e+e-, etc) at higher energies (E >> MZ)

Indirect searches at lower energies (E < MZ) but high precision

Large Hadron Collider

Ultra cold neutrons

CERN

Particle, nuclear & atomic physics

High energy physics

(and beyond!)

- 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…

“Known Unknowns”

Cosmic Energy Budget

Electroweak symmetry breaking: Higgs ?

Leptogenesis: discover the ingredients: LN- & CP-violation in neutrinos

Weak scale baryogenesis: test experimentally: EDMs

Nuclear Science mission: explain the origin, evolution, & structure of the baryonic component

Beyond the SM

SM symmetry (broken)

Baryogenesis: When? CPV? SUSY? Neutrinos?

WIMPy D.M.: Related to baryogenesis?

“New gravity”? Lorentz violation? Grav baryogen ?

?

Long baseline

b-decay

?

?

Dirac

Majorana

Yale, Indiana, Amherst

ANL, Princeton, TRIUMF…

SNS, ILL, PSI

CKM

fdSM dexp dfuture

BNL

Also 225Ra, 129Xe, d

If new EWK CP violation is responsible for abundance of matter, will these experiments see an EDM?

dn similar

Theory progress & challenge: refined computations of baryon asymmetry & EDMs

baryogenesis

LHC reach

LHC reach

ILC reach

LEP II excl

Present de

Present de

Present de

Prospective de

Prospective de

Prospective de

Electroweak symmetry breaking: Higgs ?

?

Beyond the SM

SM symmetry (broken)

New Symmetries

Origin of Matter

Unification & gravity

Weak scale stability

Neutrinos

Daya Bay

Mini Boone

Mixing, hierarchy, & CPV

Long baseline oscillation studies:

CPV?

Normal or Inverted ?

High energy solar ns

DM + EWB

Ice Cube

KamLAND

Borexino

SNO+

LENS

Solar Neutrinos

Correlations

SUSY models

Vud from neutron decay: LANSCE, SNS, NIST

Similarly unique probes of new physics in muon and pion decay

TRIUMF & PSI

CKM, (g-2)m, MW, Mt

Non (V-A) x (V-A) interactions: me/E

SUSY

SNS, NIST, LANSCE, RIA?

JLab Future

SLAC Moller

Z0 pole tension

Parity-violating electron scattering

Scale-dependence of Weak Mixing

RPV: No SUSY DM Majorana n s

SUSY Loops

d QWP, SUSY / QWP, SM

d QWe, SUSY / QWe, SM

gm-2

12 GeV

6 GeV

E158

p

g

Z

m

m

Had VP

Had LbL

QED

Weak

SUSY Loops

SM Loops

Future goal

Total: $514m

Project Funding for Neutrinos and Fundamental Symmetries

Total: $300m

DUSEL Funding Candidates

Total: $214m

Non-DUSEL Projects

- Equivalent to a major new initiative:
- “New Standard Model Initiative” (NSMI)
- ~ $750m over 10+ years
- One major new facility (DUSEL)
- Targeted program at other facilities
- Benefits to NP:
- Make NP a major player in era of historic discovery potential; we can help write the textbook on the new SM
- Builds on substantial achievements since 2002 LRP & development of strong groups
- Attractive to junior scientists
- Economy of resources & synergy with other NP facilities

/Caltech

Greene Geoff Oak Ridge Nationa Lab/U. Tennessee

Symmetries Subcommittee

Neutrino Subcommittee

Higher Twist: qq and qqg correlations

e-

e-

*

Z*

X

N

Charge sym in pdfs

12 GeV

6 GeV

d(x)/u(x): large x

Electroweak test: e-q couplings & sin2qW

Effective Field Theory

- Model Independent (7 LECs)
- Few-body systems (SNS, NIST…)
- QCD: weak qq interactions in strong int environment
- Weak Int in nuclei (0nbb decay)

Long range: p-exchange?

T=0 force

T=1 force