B to Vector Vector Polarization in

B_{d} --> JPsi K^{*} and B_{d} --> 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 B_{d} decays modes B_{d} --> JPsiK^{*}
and B_{d} --> PhiK^{*} and
provide the first measurement of a polarization amplitude
in a charmless decay at CDF.

With 360 pb^{-1} of data we measure:

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--> summary of the results
(.eps)(.tex)

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--> |A_{0}|^{2} Vs |A_{||}|^{2} for B_{d} --> JPsiK^{*}
(.eps)(.gif)

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--> |A_{0}|^{2} Vs |A_{||}|^{2} for B_{d} --> PhiK^{*}
(.eps)(.gif)

The results have been approved as of July 20, 2006.

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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.

B_{d} --> JPsiK^{*}:
- Figure 1: B
_{d} 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)

B_{d} --> PhiK^{*}:
- Figure 5: B
_{d} 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 B_{s} Mass Eigenstates.
Phys. Rev. Lett. 94 101803 (2005),
(cdf results)
The BaBar Collaboration, Measurement of
the B^{0} --> JPsiK^{*0}
decay amplitudes, Phys. Rev. Lett.
87 241801 (2001).
The BaBar Collaboration, Measurement of
the B^{0} --> PhiK^{*0}
decay amplitudes, Phys. Rev. Lett. 93 231804 (2004).
The Belle Collaboration, Measurement of the
branching fraction and decay amplitudes in
B^{0} --> JPsiK^{*0} decay},
Phys. Lett. B538 11-20 (2002).
The Belle Collaboration, Measurement of the
branching fraction and decay amplitudes in B^{0} --> PhiK^{*0}
decay}, Phys.Rev.Lett. 94 221804 (2005).
Heavy Flavor Averaging Group. (web page)