Heavy mesons in a hadronic medium: interaction and transport coefficients
نویسندگان
چکیده
منابع مشابه
Hadronic Decays of Excited Heavy Mesons
We studied the hadronic decays of excited states of heavy mesons (D, Ds, B and Bs) to lighter states by emission of π, η or K. Wavefunctions and energy levels of these excited states are determined using a Dirac equation for the light quark in the potential generated by the heavy quark (including first order corrections in the heavy quark expansion). Transition amplitudes are computed in the co...
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The parameters χ1,2, which measure nonfactorizable soft gluon contributions to hadronic weak decays of mesons, are updated by extracting them from the data of D, B → PP, V P decays (P : pseudoscalar meson, V : vector meson). It is found that χ2 ranges from −0.36 to −0.60 in the decays from D → K̄π to D+ → φπ+, D → K̄π, while it is of order 10% with a positive sign in B → ψK, Dπ, Dπ, Dρ decays. Th...
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In the framework of perturbative QCD in the fourth order over the αs coupling constant for the production of two pairs of quarks and in the model of weak binding of the quarks into meson, the analysis of the hadronic production of mesons, containing b-quark, is performed, and a minimal transverse momentum is determined, so that at the momenta greater than the found one, the meson differential s...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2016
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/668/1/012091