First Evidence for B DK ADS Mode Signal seen with 4.1σ significance with improved continuum...
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Transcript of First Evidence for B DK ADS Mode Signal seen with 4.1σ significance with improved continuum...
First Evidence for BDK ADS Mode
Signal seen with 4.1σsignificance with improvedcontinuum suppression (NB).
Ratio to favored mode:
Asymmetry:
Important information for ϕ3.
PRL 106, 231803 (2011)
RDK and ADK varies in [0.2, 2.5] x 10-2 and [-0.9, 0.9], respectively, depending on ϕ3 and strong phase (assuming rB = 0.1).
continuumSignal
DπBB
First Evidence for BD*K ADS Mode
Continuum suppression with:
Signal seen with 3.5σsignificance for D*Dγ mode.
Ratio to favored mode:
Difference between RDπ0 and RDγ: indication of the effect of the interference term 2rB*rD cos (δB*+δD) cos ϕ3 (opposite sign for RDπ0 and RDγ).
Preliminary
continuumSignalD*π
BBDK/Dπ
SignalD*π
BBDK/Dπ
continuum
Asymmetries for BD*K ADS Mode
Asymmetry:
Indication of opposite signfor ADπ0 and ADγ:consistent with expectation.(Opposite strong phasebetween D*Dπ0 and D*Dγ.)
Combining RDπ0, RDγ, ADπ0, and ADγ: indication of negative cos(δB*+δD)cosϕ3 and positive sin(δB*+δD)sinϕ3. Consistent with BD(*)K Dalitz result.
Preliminary
Suppressed BDπ, DKπ
Ratio to favored mode:
SM expectation: RDπ ~ rD2 = 3.3 x 10-3
(HFAG ’10). Asymmetry:
SM expectation: ADπ ~ 0.
PRL 106, 231803 (2011)
DKBB
continuumDπ
Suppressed BD*π, D*Dπ0/γ, DKπ
Significances are 4.8σ and 4.7σfor π0 and γ modes, respectively.
Ratio to favored mode:
Consistent with the SM:R ~ rD
2 = 3.3 x 10-3 (HFAG ’10).
Preliminary
continuum
D*K
BBDK/Dπ
D*πD*K
BBDK/Dπ
continuumD*π