Production of the Doubly Charmed Baryons at the SELEX experiment -- The double intrinsic charm approach

Abstract

The high production rate and $⟨x_F⟩>0.33$ of the doubly charmed baryons measured by the SELEX experiment is not amenable to perturbative QCD analysis. In this paper we calculate the production of the doubly heavy baryons with the double intrinsic charm Fock states whose existence is rigorously predicted by QCD. The production rate and the longitudinal momentum distribution are both reproduced. We also show that the production rates of the doubly charmed baryons and double $J/\psi$ production observed by NA3 collaboration are comparable. Recent experimental results are reviewed. The production cross section of the doubly charmed baryons at a fixed-target experiment at the LHC is presented.

The text is as published in Physics Letters B

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• Low-lying baryon masses using $N_f=2$ twisted mass clover-improved fermions directly at the physical point
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• Photoproduction of doubly heavy baryon at the LHeC
• Waves along fractal coastlines: From fractal arithmetic to wave equations
• Resolving the SELEX--LHCb Double-Charm Baryon Conflict: The Impact of Intrinsic Heavy-Quark Hadroproduction and Supersymmetric Light-Front Holographic QCD
• Quark-diquark structure and masses of doubly charmed baryons
• Production of doubly charmed baryons nearly at rest
• Parton distribution functions and constraints on the intrinsic charm content of the proton using BHPS approach
• The production of the doubly charmed baryon in deeply inelastic $ep$ scattering at the Large Hadron Electron Collider
• Impacts of the intrinsic charm content of the proton on the ${\Xi }_{cc}$ hadroproduction at a fixed target experiment at the LHC
• Spectroscopic Study of ${\Omega }_{cc}$, ${\Omega }_{cb}$ and ${\Omega }_{bb}$ Baryons
• Double quarkonium production at high Feynman-$x$
• Hadronic production of ${\Xi }_{bc}$ with the intrinsic heavy-quark content at a fixed-target experiment at the LHC
• Further study on the production of P-wave doubly heavy baryons from Z-boson decays
• Double $J/\psi$ production in pion-nucleon scattering at COMPASS
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• Resolving the SELEX-LHCb double-charm baryon conflict: the impact of intrinsic heavy-quark hadroproduction and supersymmetric light-front holographic QCD
• Signals of the double intrinsic heavy quark at the current experiments