April 20, 2005 SuperB Workshop in Hawaii

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New Physics Scenarios in B New Physics Scenarios in B hh hh

April 20, 20052nd SuperB Workshop @ Hawaii

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• Intro: NP in EWP? • PQCDF and AK but AK0 ?• Why 4th Generation?• Results• Summary

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5.7

Observation of Direct CP Violation

AK = 0.114 0.020

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B0 K

Large EW penguin (Z0) ?

New Physics ?

_d

d

Ku u

Bsb

AK0 = 0.049 0.040

3.6 fromK

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Buras @ CKM05

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Buras @ CKM05

Z’

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Fleischer @ CKM05

Parametrize EWP

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Fleischer @ CKM05

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Fleischer @ CKM05

Predictiona bit coarse

different signdifferent sign conventionconvention

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PQCDF and AK

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- 0.11 0.02 - 0.16 0.04 B0

0.04 0.04 - 0.10 0.08 B 0

0.02 0.14 - 0.02 - 0.04 B0 00

- 0.02 0.03 - 0.01 0.01 B 0

But

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Factorizable

NonFactorizable

Annihilation Phase

PQCDF

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Why 4th Generation?

Natural for impact on EWP.

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from unitarity

safe

measured

Phase

Set

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SM 4

SM 3

new unitarity condition

new penguin from t’

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Tree

QCD penguin

EW penguin SM4 naturally impact on EWP

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Results

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4th generation not excluded

favored

allowed

Excluded

Arhrib and WS

YanirHattori, Hasuike and Wakaizumi

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EWP

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“adjustable”

Cancellation btwnsb and 1

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Predictions

bb

bb

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Brought down for smaller sb

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PDG04New Avg.

Difficult evenat SuperB

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Summary

• Difference in AK0 and AK suggest Non-standard EWP• 4th Generation Carries Phase Naturally impact on EWP• With AK predicted by PQCDF account for AK0 ~ 0 if • Predictions - b sll on high side - mBs close to current bound w/ sin2Bs < 0 - Rc - Rn OK; AK 00 ~ 0.05 – 0.1, SK 00 ~ 0.4 – 0.5 - A CP in b s a fraction of SM value of 0.4%

~

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Backup

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Factorizable

NonFactorizable

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Effective Feynman Rules

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Adjustablility of

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Less shift for AK

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Rc - Rn basically OK

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Problem vs

The Case of FSI

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have similar behavior

FSI + 4TH generation

PEW leakage from to

and from to

No existence of a region of the parameter space

where the asymmetries fit the experimental data

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