Estimate of the hadronic production of the doubly charmed baryonΞccin the general-mass variable-flavor-number scheme

2006/01/05 by C. C. Chang, Chao-Hsi Chang, Cong‐Feng Qiao +3 · 2 citations
Physics and Astronomy · #Baryon #Charm (quantum number) #Charmed baryons #Diquark #Gluon #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Tevatron #hep-ph

paper · pdf · doi:10.1103/physrevd.73.094022

published as Phys.Rev.D73:094022,2006 · 26 pages, 8 figures

arxiv created 2006/01/05 · openalex publication_date 2006/05/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

To try to understand the experimental observation of SELEX Collaboration and to check the existent results in literature, we have done a theoretical investigation on hadronic production of the doubly charmed baryon \ensuremathΞ_cc (\ensuremathΞ_cc⁺⁺ or \ensuremathΞ_cc⁺) under the general-mass variable-flavor-number (GM-VFN) scheme. A similar study of the production at LHC and TEVATRON is also performed. The production here is realized via production of a binding diquark either (cc)[³S₁]_3 (in configuration S-wave and in color 3) or (cc)[¹S₀]₆ (in configuration S-wave and in color 6) instead of only the diquark (cc)[³S₁]_3 is considered. Numerical results show that the production via each configuration of the diquark is comparable at LHC and TEVATRON under the condition that the NRQCD matrix elements relevant to the diquark production are assumed approximately to be equal to each other; and the contributions from collision of a so-called ``extrinsic`` charm and a gluon inside the colliding hadrons are comparable with, or even greater than, those from the so-called gluon-gluon fusion, especially, in the region of small transverse-momentum p_t. We also note that due to the contributions from the ``extrinsic`` charm, the theoretical prediction on the production of the baryon \ensuremathΞ_cc is raised by one order in comparison with the existent predictions almost.

Citations

• Evidence for the Color-Octet Mechanism from CERN LEP2γγ→J/ψ+XData
• BCVEGPY2.0: An upgraded version of the generator BCVEGPY with the addition of hadroproduction of the P-wave states
• Hadronic production of theP-wave excitedBcstates (BcJ,L=1*)
• Doubly charmed baryon production in hadronic experiments
• CTEQ6 parton distributions with heavy quark mass effects
• Factorization approach for inclusive production of doubly heavy baryon
• Confirmation of the doubly charmed baryon Ξcc+(3520) via its decay to pD+K−

Cited by

• Production of doubly charmed baryons with the excited heavy diquark at LHC
• Excited doubly heavy baryon production via W+ boson decays