Hadronic production of baryons, containing two heavy quarks

Abstract

In the framework of QCD perturbation theory, total and differential cross sections of the ${\Xi }_{bc}^{\prime }$, ${\Xi }_{bc}^{(\ast )}$ and ${\Xi }_{cc}^{(\ast )}$ baryons production in gluon collisions are calculated in the leading order over ${\alpha }_s$ for the doubly heavy ($bc$) and ($cc$) diquarks. At both small and large transverse momenta of the baryons, a use of the mechanism of the heavy quark fragmentation into the heavy diquark is shown to underestimate the cross section values in comparison with the exact numerical calculations of complete set of diagrams. The expected in Tevatron experiments yield of baryons with two heavy quarks is evaluated as $(1.3\pm 0.3)\cdot 10^{5}bcq$-baryons and $(1.6\pm 0.3)\cdot 10^{4}ccq$-baryons at $p_T>5$ GeV and $|y|<1$ of the baryon momentum and rapidity cuts, with account for the antiparticle yields.

arXiv comment7 pages, LATEX file and tar-compressed uuencoded figures

Cited by in corpus (8)

• Doubly Charmed Baryon Production in Hadronic Experiments
• Factorization Approach for Inclusive Production of Doubly Heavy Baryon
• Estimate of the Hadronic Production of the Doubly Charmed Baryon ${\Xi }_{cc}$ under GM-VFN Scheme
• Doubly heavy baryons at LHC
• Hadronic Production of the Doubly Charmed Baryon ${\Xi }_{cc}$ with Intrinsic Charm
• Gold-plated Mode of CP-Violation in Decays of B_c Meson from QCD Sum Rules
• Production of semi-inclusive doubly heavy baryons via top-quark decays
• Possibility of Measuring the CP-Violation gamma-parameter in Decays of Xi_bc Baryons