$B_s^0 - \bar B_s^0$ mixing and $b \to s $ transitions in isosinglet down quark model

Details $B_s^0 - \bar B_s^0$ mixing and $b \to s $ transitions in isosinglet down quark model $B_s^0 - \bar B_s^0$ mixing and $b \to s $ transitions in isosinglet down quark model

2008-12-05

arxiv.org/abs/0812.1077v1

Phys.Rev.D78:116002,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 6 figures

Scientific paper

10.1103/PhysRevD.78.116002

The recent observation of the mass difference in $B_s$ system seems to be not in complete agreement with the corresponding standard model value. We consider the model with an extra vector like down quark to explain this discrepancy and obtain the constraints on the new physics parameters. Thereafter, we show that with these new constraints this model can successfully explain other observed deviations associated with $b \to s$ transitions, namely, $B_s \to \psi \phi$, $B\to K \pi$ and $B\to \phi K_s$.

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