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Dirac Leptogenesis and Neutrino Phenomenology. The CMB as seen by WMAP. Brooks Thomas (University of Michigan, MCTP). Superpotential and Fields. Effective Dirac Mass. Two Distinct Lepton Numbers. SU(2) £ U(1). Left-right equilibration (suppressed). L agg. L R. F . B. B. B. L. L.

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Brooks thomas university of michigan mctp

Dirac Leptogenesis and

Neutrino Phenomenology

The CMB as seen by WMAP

Brooks Thomas (University of Michigan, MCTP)


Superpotential and fields
Superpotential and Fields

Effective Dirac Mass


Two distinct lepton numbers
Two Distinct Lepton Numbers

SU(2)£ U(1)

Left-right equilibration (suppressed)

Lagg

LR

F


A game of time scales

B

B

B

L

L

L

A Game of Time Scales

1

2

3

Positive B

Positive L

(B-L)=Const.

Lagg

Lagg

LR

Lagg

LR

LR

Initial Decays

Sphaleron Era

Equilibration Era


Constraints delayed equilibration

yeff

y’

L-R Equilibration Process

Constraints: Delayed Equilibration


Constraints gravitino problem
Constraints: Gravitino Problem

BBN Constraints

PeV Window

Most Favorable Region

Gluino Problem


Constraints neutrino physics
Constraints: Neutrino Physics

Atmospheric

Solar (LMA)

sin31


Neutrinos in dirac leptogenesis

The Normal Spectrum

Neutrinos In Dirac Leptogenesis



Chdl and the neutrino spectrum
CHDL and the Neutrino Spectrum

a3 and b3 for =10-1

a3 and b3 in CHDL


Solving the boltzmann equations
Solving the Boltzmann Equations

Dominant

Weak Coupling Solution

Strong Coupling Solution


The final result chdl works

E

X

C

L

U

D

E

D

E

X

C

L

U

D

E

D

a3=95.0

a3=4.5

The Final Result: CHDL Works


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