Along with the running of Large Hadron Collider(LHC)located at CERN in November 2009,a large number of data samples of Bc meson have been collected and some hadronic Bc decay modes have been measured by the LHC *** vi...
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Along with the running of Large Hadron Collider(LHC)located at CERN in November 2009,a large number of data samples of Bc meson have been collected and some hadronic Bc decay modes have been measured by the LHC *** view of the special and important roles of Bc meson decays playing in the heavy flavor sector,we here give a short review on the status of two body hadronic decays Bc!M1M2at both experimental and theoretical *** the theoretical progresses,specifically,we will show lots of theoretical studies on two body hadronic Bcdecays involving pseudoscalar,vector,scalar,axial-vector,even tensor meson(s)in the final states by employing the perturbative QCD(pQCD)factorization *** will present a general analysis about the twobody hadronic decays of the heavy Bc meson and also provide some expectations for the future developments.
The nonleptonic two body Bu;d;s;c decays involving a light tensor meson in final states are studied in the perturbative QCD approach based on *** decay modes with a tensor meson emitted,are prohibited in naive factori...
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The nonleptonic two body Bu;d;s;c decays involving a light tensor meson in final states are studied in the perturbative QCD approach based on *** decay modes with a tensor meson emitted,are prohibited in naive factorization,since the emission diagram with a tensor meson produced from vacuum is *** contributions from the so-called hard scattering emission diagrams and annihilation type diagrams are important and calculable in the perturbative QCD *** branching ratios of most decays are in the range of 10 4–10 8,which are bigger by 1 or 2 orders of magnitude than the predictions given by the naive factorization,but consistent with the predictions from the QCD factorization and the recent experimental *** also give the predictions for the direct CP asymmetries,some of which are large enough for the future experiments to *** also find that,even with a small mixing angle,the mixing between f2and f02can bring remarkable changes to both branching ratios and the direct CP asymmetries for some decays involving *** decays with a vector meson and a tensor meson in final states,we predict a large percentage of transverse polarization contributions due to the contributions of the orbital angular momentum of the tensor mesons.
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