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Analysis of the B-s ->-> (D)over-bar(0) phi decay

Author:
Talebtash, Mohammad Rahim  Asadi, Amin  Mehraban, Hossein  


Journal:
EUROPEAN PHYSICAL JOURNAL PLUS


Issue Date:
2016


Abstract(summary):

In this paper we analyzed the B-s ->-> (D)over-bar(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(*-) 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 ->-> (D)over-bar(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) x 10(-7) and in QCDF approach is 4.03(-0.02)(+0.01) x 10(-6) nd the improved branching ratio is 1.84(-0.17)(+0.18) x 10(-5) when we consider the final state interaction effect in energy scale mu =3D m(b). It is near the experimental value, which is 2.3 x 10(-5).


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