, Meson-Nucleon Scattering and Quark Multiple Scattering Model
نویسندگان
چکیده
منابع مشابه
A 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 ...
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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 ...
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We study the nucleon-nucleon interaction in a chiral constituent quark model by using the resonating group method, convenient for treating the interaction between composite particles. The calculated phase shifts for the S1 and S0 channels show the presence of a strong repulsive core due to the combined effect of the quark interchange and the spin-flavour structure of the effective quark-quark i...
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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...
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Modifications to quark and antiquark fragmentation functions due to quark-quark (antiquark) double scattering in nuclear medium are studied systematically up to order O(αs) in deeply inelastic scattering (DIS) off nuclear targets. At the order O(αs), twist-four contributions from quark-quark (antiquark) rescattering also exhibit the Landau-Pomeranchuck-Midgal (LPM) interference feature similar ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1979
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.61.347