منابع مشابه
Charm meson radiative decays
Combining heavy quark effective theory and the chiral Lagrangian approach we investigate D meson radiative decays. First, we reanalyse D∗ → Dγ decays using heavy quark spin symmetry, chiral symmetry Lagrangian, but including also the light vector mesons. Then, we calculate branching ratios D → V γ. We make some comments on the Cabbibo suppressed decays D → ρ/ωγ and the branching ratios of D → P...
متن کاملVector and pseudoscalar charm meson radiative decays.
Combining heavy quark effective theory and the chiral Lagrangian approach we investigate radiative decays of pseudoscalar D mesons. We first reanalyse D∗ → Dγ decays within the effective Lagrangian approach using heavy quark spin symmetry, chiral symmetry Lagrangian, but including also the light vector mesons. We then investigate D → V γ decays and calculate the D → K̄∗0γ and D → ργ partial widt...
متن کاملCharm meson resonances in D semileptonic decays
Motivated by recent experimental results we reconsider semileptonic D → Plνl and D → Vlνl decays within a model which combines heavy quark symmetry and properties of the chiral Lagrangian. Using limits of soft collinear effective theory and heavy quark effective theory we parametrize the semileptonic form factors. We include excited charm meson states in our Lagrangians and determine their impa...
متن کاملIntrinsic Charm in B-meson Decays
Light cone hadron wave functions support Fock states of arbitrarily high particle number: their heavy quark content arises naturally through QCD interactions. We discuss what role c¯ c pairs, intrinsic to a hadron's structure, can play in B-meson decays. The effects can be prominent in hadronic decays for which the tree-level contributions are Cabibbo-suppressed, as in B → πK decay, and they mi...
متن کاملLight Scalar Mesons in Charm Meson Decays
We present recent results on scalar light mesons based on Dalitz plot analyses of charm decays from Fermilab experiment E791. Low mass scalar mesons are found to have large contributions to the decays studied, D → Kππ and D,D s → πππ. These results demonstrate the importance of charm decays as a new environment for the study of light meson physics.
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ژورنال
عنوان ژورنال: Annual Review of Nuclear and Particle Science
سال: 2008
ISSN: 0163-8998,1545-4134
DOI: 10.1146/annurev.nucl.58.110707.171131