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 کاملCharm meson scattering cross sections by pion and rho meson
Using the local flavor SU(4) gauge invariance in the limit of vanishing vector meson masses, we extend our previous study of charm meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalarpseudoscalar-vector meson couplings, to include also contributions from the couplings among three vector mesons and among four particles. We find that diagrams with light m...
متن کاملPeculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy
Interactions in coupled channels ππ, KK̄ and an effective 2π2π in scalar-isoscalar wave have been analysed. Influence of interchannel couplings on analytical structure of multichannel interaction amplitudes has been studied. Interplay of S-matrix zeroes and poles and their relation with parameters of scalar resonances has been investigated. PACS numbers: 11.80.Gw, 13.60.Le, 13.75.Lb, 14.40.Cs St...
متن کاملThree channel model of meson-meson scattering and scalar meson spectroscopy
New solutions on the scalar – isoscalar ππ phase shifts are analysed together with previous KK results using a separable potential model of three coupled channels (ππ , KK and an effective 2π2π system). Model parameters are fitted to two sets of solutions obtained in a recent analysis of the CERN-Cracow-Munich measurements of the πp↑ → π +π−n reaction on a polarized target. A relatively narrow ...
متن کاملSystematics of Meson-skyrmion Scattering*
The S-matrix characterizing the scattering of pions from nucleons is calcu-lated in the context of skyrmion models of the nucleon. These are models inwhich the nucleon is considered a soliton in the field of pions. The spectrum ofnucleon and delta resonances in the Skyrme model is calculated and found o bein overall good agreement with Nature. Model-independent sum rules between...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 1971
ISSN: 0370-1573
DOI: 10.1016/0370-1573(71)90014-7