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Title: Production of Bc mesons in photon-photon and hadron-hadron collisions
Authors: Kołodziej, Karol
Leike, A.
Ruckl, R.
Keywords: foton; hadrony
Issue Date: 1996
Citation: Acta Physica Polonica. B, 1996, no. 10, s. 2591-2600
Abstract: We discuss two-photon and hadronic production of Bc mesons in nonrelativistic bound state approximation and to lowest order in the coupling constants a and a s . It is shown that in photon-photon collisions, heavy quark fragmentation is dominated by recombination of b and c quarks up to the highest accessible transverse momenta. In contrast, in hadroproduction, which at high energies mainly involves gluon-gluon collisions, the fragmentation mechanism dominates at transverse momenta py > mRc, providing a simple and satisfactory approximation of the complete 0(a ) ) results in the high-px regime. Contradictions in previous publications on hadroproduction of Bc mesons are clarified. We also present predictions for cross sections and differential distributions at present and future accelerators.
ISSN: 0587-4254
Appears in Collections:Artykuły (WNŚiT)

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