B to Vector Vector Polarization in
Bd --> JPsi K* and Bd --> PhiK*
This web page summarizes the results for the the first measurement of the polarization amplitudes
in B&rarr VV decays using the Two Track Trigger data.
In particular we study two Bd decays modes Bd --> JPsiK*
and Bd --> PhiK* and
provide the first measurement of a polarization amplitude
in a charmless decay at CDF.
With 360 pb-1 of data we measure:
--> summary of the results
(.eps)(.tex)
--> |A0|2 Vs |A|||2 for Bd --> JPsiK*
(.eps)(.gif)
--> |A0|2 Vs |A|||2 for Bd --> PhiK*
(.eps)(.gif)
The results have been approved as of July 20, 2006.
A more detailed summary of the results can be found here:
ps
Below are the eps and gif versions of the figures meant for downloads.
Bd --> JPsiK*:
- Figure 1: Bd mass with fit projection (.eps)(.gif)
- Figure 2: cos(psi) distribution with fit projection (.eps)(.gif)
- Figure 3: cos(theta) distribution with fit projection (.eps)(.gif)
- Figure 4: phi distribution with fit projection (.eps)(.gif)
Bd --> PhiK*:
- Figure 5: Bd mass with fit projection (.eps)(.gif)
- Figure 6: cos(psi) distribution with fit projection (.eps)(.gif)
- Figure 7: cos(theta) distribution with fit projection (.eps)(.gif)
- Figure 8: phi distribution with fit projection (.eps)(.gif)
References for cited CDF, BaBar and Belle measurement:
The CDF Collaboration, Measurement of the
Lifetime Difference between Bs Mass Eigenstates.
Phys. Rev. Lett. 94 101803 (2005),
(cdf results)
The BaBar Collaboration, Measurement of
the B0 --> JPsiK*0
decay amplitudes, Phys. Rev. Lett.
87 241801 (2001).
The BaBar Collaboration, Measurement of
the B0 --> PhiK*0
decay amplitudes, Phys. Rev. Lett. 93 231804 (2004).
The Belle Collaboration, Measurement of the
branching fraction and decay amplitudes in
B0 --> JPsiK*0 decay},
Phys. Lett. B538 11-20 (2002).
The Belle Collaboration, Measurement of the
branching fraction and decay amplitudes in B0 --> PhiK*0
decay}, Phys.Rev.Lett. 94 221804 (2005).
Heavy Flavor Averaging Group. (web page)
