Thermal radiation and inclusive production in the CGC/saturation approach at high energies

Abstract

In this paper, we discuss the inclusive production of hadrons in the framework of CGC/saturation approach. We argue, that the gluon jet inclusive production stems from the vicinity of the saturation momentum, even for small values of the transverse momenta $p_T$. Since in this region, theoretically, we know the scattering amplitude, we claim that we can provide reliable estimates for this process. We demonstrate, that in a widely accepted model for confinement, to describe the experimental data, we require a thermal radiation term. In this model the parton (quark or gluon) with the transverse momenta of the order of $Q_s$ decays into hadrons with the given fragmentation functions. However, we show that other approaches for the confinement could describe the data, without a need for the thermal emission

18 pp, 21 figures in pdf files

References in corpus (12)

• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Analysis of combined HERA data in the Impact-Parameter dependent Saturation model
• Parton-to-Pion Fragmentation Reloaded
• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• Gluon saturation and inclusive hadron production at LHC
• Multi-particle Production and Thermalization in High-Energy QCD
• Measurement of charged pion, kaon, and proton production in proton-proton collisions at sqrt(s) = 13 TeV
• Color confinement and screening in the $\theta$ -vacuum
• Predictions on the transverse momentum spectra for charged particle production at LHC-energies from a two component model
• The origin of thermal component in the transverse momentum spectra in high energy hadronic processes
• Role of quarks in hadroproduction in high energy collisions
• Secondary hadron distributions in two component model

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• Multiplicity distribution of dipoles in QCD from Le, Mueller and Munier equation
• Thermal radiation and inclusive production in the running coupling $k_T$ -- factorization approach