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Model Independent Methods for Determining B(Y(5S)->Bs^{(*)} anti-B}_s^{(*)})$

Radia Sia·Sheldon Stone
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Abstract

We describe a method that provides a model independent measurement of the Bs fraction in Y(5S) resonance decays, fs, using the relative rates of like-sign versus opposite sign dileptons; the like-sign leptons result from B^0 and Bs mixing. In addition, we show that determining the rates of single, double and triple Ds mesons provides an alternative way of finding fs.

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Radia Sia, Sheldon Stone. 2009-08-12. Model Independent Methods for Determining B(Y(5S)->Bs^{(*)} anti-B}_s^{(*)})$. https://doi.org/10.1103/physrevd.74.031501%2010.1103%2Fphysrevd.80.039901

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