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EDMs, the LHC, and the Origin of Matter

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EDMs, the LHC, and the Origin of Matter M.J. Ramsey-Musolf Wisconsin-Madison NPAC Theoretical Nuclear, Particle, Astrophysics & Cosmology http://www.physics.wisc.edu ... – PowerPoint PPT presentation

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Title: EDMs, the LHC, and the Origin of Matter


1
EDMs, the LHC, and the Origin of Matter
M.J. Ramsey-Musolf Wisconsin-Madison
NPAC
Theoretical Nuclear, Particle, Astrophysics
Cosmology
http//www.physics.wisc.edu/groups/particle-theory
/
NC State Seminar, March 2009
2
What is the origin of baryonic matter ?
3
Outline
  1. Baryogenesis General Features
  2. Preview of main results
  3. Computing YB systematically progress
    challenges
  4. Illustrative phenomenology in MSSM EDMs the LHC

4
I. Baryogenesis General Features
5
Baryogenesis Ingredients
6
EW Baryogenesis Standard Model
Anomalous Processes
Different vacua D(BL) DNCS
Sphaleron Transitions
7
EW Baryogenesis Standard Model
8
Baryogenesis New Electroweak Physics
9
EDMs New CPV?
  • SM background well below new CPV expectations
  • New expts 102 to 103 more sensitive
  • CPV needed for BAU?

10
Baryogenesis EDMs Colliders
11
EDMs EWB What We May Learn
n-EDM has killed more theories than any other
single experiment
12
II. Preview Main Results
13
MSSM Baryogenesis EDMs LHC
Cirigliano, Profumo, R-M
14
Probing the CPV Phase Structure
New 2-loop EDM calc
Res ?? EWB not compatible with dn
Res non-res ?? EWB compatible with future dn
Li, Profumo, Ramsey-Musolf
15
YB Particle Spectrum LHC g?-2
YB dependence on third generation sparticle
masses tan?
Magnitude sign of YB sensitive to third
generation sfermion spectrum for given CPV phase
Chung, Garbrecht, Ramsey-Musolf, Tulin
16
III. Computing YB
17
Systematic Baryogenesis
Goal Derive dependence of YB on parameters
Lnew systematically (controlled approximations)

18
Systematic Baryogenesis
Cohen, Kaplan, Nelson Joyce, Prokopec,
Turok
snow
19
Quantum Transport Baryogenesis
Electroweak Baryogenesis
Particle Propagation Beyond familiar (Peskin) QFT
20
Quantum Transport Baryogenesis
Electroweak Baryogenesis
Scale Hierarchy
21
Quantum Transport Equations
22
Our Work Applied to MSSM
  • Resonant enhancements in chiral relaxation
    offsets resonant CPV
  • Three-body contributions enhance Yukawa rates
  • Large tan? (g?-2) regime quenches YB and
    introduces strong dependence on SUSY spectrum
  • EDM constraints imply non-universal gaugino phases

23
Illustrative Study MSSM
Chargino Mass Matrix
Neutralino Mass Matrix
Resonant CPV M1,2 m
24
Baryon Number MSSM
25
Resonant CPV Relaxation
26
Baryon Number GY
27
Baryogenesis tan ? effects
Transport, Spectrum, EDMs
SUSY
Chung,Garbrecht, R-M, Tulin PRL 102061301 (2009)
28
IV. Phenomenology EDMs, LHC, YB
29
EDMs Complementary Searches
Improvements of 102 to 103
Electron
Neutron
Neutral Atoms
Deuteron
30
EDMs Theory
Neutron
Neutral Atoms
Deuteron
31
EDMs Schiff Moments
One-loop
EDM q, l, n
Chromo-EDM q, n
32
One Loop EDMs Baryogenesis
33
EDMs in SUSY
One-loop
EDM q, l, n
Chromo-EDM q, n
34
EDMs in SUSY
One-loop
EDM q, l, n
Chromo-EDM q, n
35
EDM constraints SUSY CPV
Arg(?M1b) Arg(?M2b)
36
MSSM Baryogenesis EDMs LHC
Cirigliano, Profumo, R-M
37
EDMs in SUSY Full Two-Loop
Higgs Boson Masses
Li, Profumo, R-M PRD 78075009 (2008)
38
EDMs in SUSY Full Two-Loop
Higgs Boson Masses
Stronger limits on ?CPV for light Higgses large
tan?
Arg(?M1b) Arg(?M2b)
39
Baryogenesis EDMs LHC
Higgs Boson Masses
Examples w/ mstop 125 GeV,mA200 GeV tan?15,
sin ??0.05 tan?5, sin ??0.1
Stronger limits on ?CPV for light Higgses large
tan?
Large tan ??(g?-2) universal gaugino ?CPV
challenging for MSSM EWB
40
EDMs EWB Non-universal phases
Li, Profumo, R-M PLB 67395 (2009)
Res ?? EWB not compatible with dn
Res non-res ?? EWB compatible with future dn ,
light mA, moderate tan?
41
Summary
  • EWB remains a viable and testable scenario for
    explaining the cosmic baryon asymmetry
  • We are making progress in refining YB EDM
    computations with reduced theoretical
    uncertainties
  • Input from EDM searches, collider studies,
    theory needed to address the origin of matter
    problem
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