Spectral density calculations in a heavy-light meson-meson system
نویسندگان
چکیده
منابع مشابه
Interaction studies of a heavy - light meson - baryon system
We study time correlation functions of operators representing heavy-light K–Λ like systems at various relative distances r. The heavy quarks, one in each hadron, are treated as static. An anisotropic and asymmetric lattice is used with Wilson fermions. Our goal is to extract an adia-batic potential and thus learn about the physics of the five-quark system viewed as an hadronic molecule.
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A system of two static quarks, at fixed distances r, and two light quarks is studied on an anisotropic lattice. Excitations by operators emphasizing quark or gluon degrees of freedom are examined. The maximum entropy method is applied in the spectral analysis. These simulations ultimately aim at learning about mechanisms of hadronic interaction.
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We describe the effective heavy meson lagrangian for Sand P-wave heavy-light mesons in terms of a model based on meson-quark interactions, where mesonic transition amplitudes are represented by diagrams with heavy mesons attached to loops containing heavy and light constituent quarks. The model is relativistic and incorporates the heavy quark symmetries. The universal form factors of the heavy ...
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I describe a model for heavy meson decays based on an effective quark-meson lagrangian. I consider the heavy mesons S with spin and parity J = (1, 0), H with J = (1, 0) and T μ with J = (2, 1), i.e. S and P wave heavy-light mesons. The model is constrained by the known symmetries of QCD in the mQ → ∞ for the heavy quarks and chiral symmetry in the light quark sector. Using a very limited number...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2002
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(01)01709-1