Investigating the inclusive transverse spectra in high-energy $pp$ collisions in the context of geometric scaling framework

Abstract

The presence of geometric scaling within the $p_T$ spectra of produced hadrons at high energy $pp$ collisions using small-$x$ $k_T$-factorization is investigated. It is proposed a phenomenological parameterization for the unintegrated gluon distribution in the scaling range which reproduces the features of the differential cross section both in the saturated and dilute perturbative QCD regimes. As the saturation scale acts as an effective regulator of the infrared region (IR), the extension of the model to quantities usually associated to soft physics is studied. The approach is applied to compute the average $p_T$ and the rapidity distribution of produced gluons at high energies.

arXiv comment11 pages, 9 figures

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• Charmed meson production based on dipole transverse momentum representation in high energy hadron-hadron collisions available at the LHC
• $D$-meson production in high energy $pA$ collisions within the QCD color dipole transverse momentum representation
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• Light neutral-meson production in pp collisions at $\sqrt{\mathbf{s}}$ = 13 TeV
• Exclusive $Z^0$ production in $ep$ and $eA$ collisions at high energies
• Nuclear transverse momentum imbalance in the color dipole approach at the LHC regime
• Universality of scaled particle spectra in ultrarelativistic heavy-ion collisions
• Gauge fields renormalization groups and thermofractals