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- W2021309357 abstract "We investigate the production of heavy vector mesons with s, c and b contents. Starting from a factorization of the full transition amplitude into a hard production amplitude and soft initial and final state interactions, we employ the exchange of three gluons or an instanton 4q q interaction for the production mechanism. The structure of the mesons produced and the interacting protons are formulated as constituent q or quark–scalar diquark systems in a covariant relativistic quark model. As an upper limit, we find a typical suppression of the total threshold charm and bottom cross section relative to ϕ(1020) production by typically two and five orders of magnitude, respectively; the proper inclusion of effects from Lorentz contraction and the deformation of the interacting proton turns out to be of significant importance." @default.
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- W2021309357 date "2002-06-19" @default.
- W2021309357 modified "2023-09-23" @default.
- W2021309357 title "Exclusive production of heavy flavours in the pp system near meson thresholds" @default.
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- W2021309357 doi "https://doi.org/10.1088/0954-3899/28/7/362" @default.
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