Doubly charmed baryon production in hadronic experiments

1997/10/14 by A. Berezhnoy, A. V. Berezhnoy, V. V. Kiselev +2 · 8 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.57.4385

published as Phys.Rev. D57 (1998) 4385-4392 · 30 pages, epsf-style, 12 figures

arxiv created 1997/10/14 · openalex publication_date 1998/04/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the leading order of perturbative QCD we calculate the total and differential cross sections for the hadronic production of doubly charmed baryons \ensuremathΞ_cc and \ensuremathΞ_cc^* in different experiments. The experimental evaluation of the cross sections for the J/\ensuremathψ+D+D production would allow us to decrease the uncertainty in the determination of cross sections for the doubly charmed baryons due to the choice of \ensuremathα_s and m_c. We show that in the HERA-B and E781 experiments with fixed tagets the suppression of the \ensuremathΞ_cc and \ensuremathΞ_cc^* production to the yield of cc pairs is a value of the order of 10^\ensuremath-6\ensuremath-10^\ensuremath-5, whereas at the Fermilab Tevatron and CERN LHC colliders it is about 10^\ensuremath-4\ensuremath-10^\ensuremath-3. In the E781 experiment the observation of \ensuremathΞ_cc and \ensuremathΞ_cc^* is practically impossible. At the HERA-B and Tevatron facilities one can expect 10⁵ events with the double charm, and at LHC one has about 10⁹ events.

Citations

• Heavy quark fragmentation to baryons containing two heavy quarks

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