Baryogenesis, EDMs, and The Higgs Boson

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Baryogenesis, EDMs, and The Higgs Boson
Higgs Phenomenology
Baryogenesis

• V. Cirigliano LANL
• C. Lee LBL
• S. Tulin Caltech
• S. Profumo UC Santa Cruz
• G. Shaugnessy Wisconsin

• V. Barger Wisconsin
• P. Langacker IAS
• M. McCaskey Wisconsin
• D. OConnell IAS
• G. Shaugnessy Wisconsin
• M. Wise Caltech

PRD 71 075010 (2005) PRD 73 115009 (2006)
JHEP 0607002 (2006 ) JHEP 0807010 (2007)
PRD 75 037701 (2007) arXiv 0706.4311 hep-ph
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What is the origin of baryonic matter ?
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Outline

• Baryogenesis General Features
• Probing EW phase transition w/ Higgs boson
  phenomenology
• Computing YB systematically progress
  challenges
• Illustrative phenomenology in MSSM EDMs, DM,
  Colliders

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The Origin of Matter Energy
Baryogenesis When? CPV? SUSY? Neutrinos?
?
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Baryogenesis Myths

• EW baryogenesis requires a light SUSY Higgs boson
  (mH lt 120 GeV)
• EW baryogenesis requires SUSY with a light RH
  stop
• EDMs have nearly killed EW baryogenesis
• Leptogenesis is the most viable option

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Baryogenesis Ingredients
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EW Baryogenesis Standard Model
Anomalous Processes
Different vacua D(BL) DNCS
Sphaleron Transitions
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EW Baryogenesis Standard Model
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Baryogenesis New Electroweak Physics
Unbroken phase
CP Violation
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EDMs New CPV?

• SM background well below new CPV expectations
• New expts 102 to 103 more sensitive
• CPV needed for BAU?

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Baryogenesis New Electroweak Physics
90s Cohen, Kaplan, Nelson
Joyce, Prokopec, Turok
Unbroken phase
CP Violation
Theoretical Issues Strength of phase
transition (Higgs sector) Bubble dynamics
(numerical) Transport at phase boundary (non-eq
QFT) EDMs many-body physics QCD
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Baryogenesis New Electroweak Physics
90s Cohen, Kaplan, Nelson
Joyce, Prokopec, Turok
Unbroken phase
CP Violation
Theoretical Issues Strength of phase
transition (Higgs sector) Bubble dynamics
(expansion rate) Transport at phase boundary
(non-eq QFT) EDMs many-body physics QCD
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Electroweak Phase Transition Higgs
LEP EWWG
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Electroweak Phase Transition Higgs
LEP EWWG
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Electroweak Phase Transition Higgs
LEP EWWG
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Extending the Higgs Sector
Ando, Barger, Langacker, Profumo, R-M,
Shaugnessy, Tulin
SUSY Beyond the MSSM
L soft
GUTs SU(5) example
Fileviez Perez, Patel, R-M
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The Simplest Extension
Model
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The Simplest Extension, Contd
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Finite Temperature Potential
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Finite Temperature Potential
Potential
Conditions
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Symmetry Breaking
Two Cases for ltSgtat high T
Vmin 0
Vmin V0 lt 0
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Electroweak Symmetry Breaking
Critical Temperature
LEP allowed models TC 100 GeV
V0 / TC4 ltlt 1
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Electroweak Symmetry Breaking
Strong first order EWPT
Potential parameters
Small ac limit
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Electroweak Symmetry Breaking
Strong first order EWPT
a1lt0, a2 either sign
a1b3 0, a2 lt 0
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Phenomenology EWPO
Electroweak Precision Observables (EWPO)
Oblique parameters
Similar for S,U
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Phenomenology EWPO contd
Electroweak Precision Observables (EWPO)
Oblique parameters
Global fit (GAPP)
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Phenomenology
Colliders
EWPO favors light SM-like scalar
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Phenomenology
Colliders
Z2 Symmetry
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LHC Phenomenology

Barger, Langacker, McCaskey, R-M, Shaughnessy
Discovery Potential
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LHC Phenomenology

Barger, Langacker, McCaskey, R-M, Shaughnessy
Discovery Potential
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ILC Phenomenology

(also WWF, ZZF)
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Scalar Sector the EWPT

• Simple extensions of the SM scalar sector (xSM)
  w/ small number of d.o.f. can readily lead to a
  strong, 1st order EWPT as needed for EW
  baryogenesis
• EWPT viable xSM can allow for heavier SM-like
  Higgs consistent with EWPO
• EWPT xSM can readily probed at the LHC and ILC
  using Higgs boson searches
• One can obtain an analytic criteria for
  parameters of xSM needed for 1st order EWPT that
  provides guidance for specific model realizations

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Baryogenesis New Electroweak Physics
90s Cohen, Kaplan, Nelson
Joyce, Prokopec, Turok
Unbroken phase
CP Violation
Theoretical Issues Strength of phase
transition (Higgs sector) Bubble dynamics
(expansion rate) Transport at phase boundary
(non-eq QFT) EDMs many-body physics QCD
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Systematic Baryogenesis
Goal Derive dependence of YB on parameters
Lnew systematically (controlled approximations)

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Quantum Transport Baryogenesis
Electroweak Baryogenesis
Particle Propagation Beyond familiar (Peskin) QFT
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Quantum Transport Baryogenesis
Electroweak Baryogenesis
Scale Hierarchy
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Quantum Transport Equations
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Illustrative Study MSSM
Chargino Mass Matrix
Neutralino Mass Matrix
Resonant CPV M1,2 m
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EDMs Baryogenesis
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EDMs in SUSY
One-loop
EDM q, l, n
Chromo-EDM q, n
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EDMs in SUSY
One-loop
EDM q, l, n
Chromo-EDM q, n
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EDM constraints SUSY CPV
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Baryogenesis EDMs Colliders
Cirigliano, Profumo, R-M
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Summary

• EW baryogenesis remains a viable and testable
  mechanism for producing the observed baryon
  asymmetry
• Extensions of the Higgs sector of the SM can
  readily yield a strong 1st order EWPT, and these
  extensions can be probed at LHC and ILC
• Weve made progress in computing YB
  systematically, but challenges remain no ones
  (yet) perfect !
• EDM searches provide our most powerful probe of
  new EW CPV needed for YB