Presentation is loading. Please wait.

Presentation is loading. Please wait.

First Evidence for B  DK ADS Mode  Signal seen with 4.1σ significance with improved continuum suppression (NB).  Ratio to favored mode:  Asymmetry:

Similar presentations


Presentation on theme: "First Evidence for B  DK ADS Mode  Signal seen with 4.1σ significance with improved continuum suppression (NB).  Ratio to favored mode:  Asymmetry:"— Presentation transcript:

1 First Evidence for B  DK ADS Mode  Signal seen with 4.1σ significance with improved continuum suppression (NB).  Ratio to favored mode:  Asymmetry:  Important information for ϕ 3. PRL 106, 231803 (2011) R DK and A DK varies in [0.2, 2.5] x 10 -2 and [-0.9, 0.9], respectively, depending on ϕ 3 and strong phase (assuming r B = 0.1). continuum Signal Dπ BB

2 First Evidence for B  D*K ADS Mode  Continuum suppression with:  Signal seen with 3.5σ significance for D*  Dγ mode.  Ratio to favored mode:  Difference between R Dπ0 and R Dγ : indication of the effect of the interference term 2r B *r D cos (δ B *+δ D ) cos ϕ 3 (opposite sign for R Dπ0 and R Dγ ). Preliminary continuum Signal D*πD*π BB DK/Dπ Signal D*πD*π BB DK/Dπ continuum

3 Asymmetries for B  D*K ADS Mode  Asymmetry:  Indication of opposite sign for A Dπ0 and A Dγ : consistent with expectation. (Opposite strong phase between D*  Dπ 0 and D*  Dγ.)  Combining R Dπ0, R Dγ, A Dπ0, and A Dγ : indication of negative cos(δ B *+δ D )cos ϕ 3 and positive sin(δ B *+δ D )sin ϕ 3. Consistent with B  D (*) K Dalitz result. Preliminary

4 Backup slides

5 Suppressed B  Dπ, D  Kπ  Ratio to favored mode: SM expectation: R Dπ ~ r D 2 = 3.3 x 10 -3 (HFAG ’10).  Asymmetry: SM expectation: A Dπ ~ 0. PRL 106, 231803 (2011) DK BB continuum Dπ

6 Suppressed B  D*π, D*  Dπ 0 /γ, D  Kπ  Significances are 4.8σ and 4.7σ for π 0 and γ modes, respectively.  Ratio to favored mode:  Consistent with the SM: R ~ r D 2 = 3.3 x 10 -3 (HFAG ’10). Preliminary continuum D*KD*K BB DK/Dπ D*πD*π D*KD*K BB DK/Dπ continuum D*πD*π

7 Asymmetries for B  D*π, D*  Dπ 0 /γ, D  Kπ  Asymmetry:  Consistent with the SM: A ~ 0. Preliminary


Download ppt "First Evidence for B  DK ADS Mode  Signal seen with 4.1σ significance with improved continuum suppression (NB).  Ratio to favored mode:  Asymmetry:"

Similar presentations


Ads by Google