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Analysis of the \(B_{s}\rightarrow \bar{D}^{0} \phi\) decay

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Abstract.

In this paper we analyzed the \( B_{s}\rightarrow \bar{D}^{0} \phi\) decay within different frameworks. At first we consider the naive factorization (NF) and the QCD factorization (QCDF) approach, where the final states are a pseudoscalar meson and vector meson; then we consider the final state interaction (FSI) effect, where the intermediate state is \( D_{s}^{\ast-}K^{+}\) to improve the branching ration. In QCDF we considered the nonfactorizable corrections, such as vertex correction and hard spectator interactions. First observation of the \( B_{s} \rightarrow \bar{D}^{0} \phi\) decay is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment at a center-of-mass energy of 7TeV. Our results in the naive factorization approach is \( 8.73^{+0.01}_{-0.01} \times 10^{-7}\) and in QCDF approach is \( 4.03^{+0.01}_{-0.02} \times 10^{-6}\) and the improved branching ratio is \( 1.84^{+0.18}_{-0.17} \times 10^{-5}\), when we consider the final state interaction effect in energy scale \( \mu = m_{b}\). It is near the experimental value, which is \( 2.3\times 10^{-5}\).

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Correspondence to Mohammad Rahim Talebtash.

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Rahim Talebtash, M., Asadi, A. & Mehraban, H. Analysis of the \(B_{s}\rightarrow \bar{D}^{0} \phi\) decay. Eur. Phys. J. Plus 131, 312 (2016). https://doi.org/10.1140/epjp/i2016-16312-3

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  • DOI: https://doi.org/10.1140/epjp/i2016-16312-3

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