منابع مشابه
Charm Meson Production from Meson-nucleon Scattering
Because of their large masses, one expects charm mesons to be mostly produced in the initial preequilibrium stage of relativistic heavy ion collisions. They have thus been suggested as possible probes of the initial dynamics in these collisions. Previous studies have been concentrated on the production of charm quarks from the preequilibrium partonic matter [1]. For charm meson production from ...
متن کاملNucleon Resonances in Meson Nucleon Scattering with Strangeness Production
An effective Lagrangian model in a coupled channels framework is applied to extract nucleon resonance parameters. In the K-matrix approximation, we simultaneously analyze all the available data for the transitions from πN to five possible meson-baryon final states, πN, ππN, ηN,KΛ, and KΣ, in the energy range from πN threshold up to √ s = 2 GeV. In this work, we focus our efforts on the KΣ chann...
متن کاملA unitary model for meson-nucleon scattering
In an effective Lagrangian model employing the K-matrix approximation we extract nucleon resonance parameters. To this end we analyze simultaneously all available data for reactions involving the final states πN , ππN , ηN and KΛ in the energy range mN + mπ ≤ √ s ≤ 1.9 GeV. The background contributions are generated consistently from the relevant Feynman amplitudes, thus significantly reducing ...
متن کاملFrom Meson-nucleon Scattering to Vector Mesons in Nuclear Matter
We employ meson-nucleon scattering data to deduce the properties of the low-mass vector mesons in nuclear matter, and present results for the ρ and ω in-medium spectral functions. The corresponding thermal emission rate for lepton pairs is also discussed.
متن کاملMeson-nucleon Scattering and Vector Mesons in Nuclear Matter *
The electromagnetic decay of the vector mesons into e+e− and μ+μ− pairs makes them particularly well suited for exploring the conditions in dense and hot matter in nuclear collisions. The lepton pairs provide virtually undistorted information on the mass distribution of the vector mesons in the medium. The lepton-pair spectrum in nucleus-nucleus collisions at SPS energies exhibits a low-mass en...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1953
ISSN: 0033-068X
DOI: 10.1143/ptp.9.91