Multisource thermal model to the transverse momentum spectra in pp collisions at RHIC and LHC energies

TL;DR

This paper employs an improved multi-source thermal model to analyze and predict transverse momentum spectra in proton-proton collisions across a wide energy range, including future collider energies.

Contribution

It introduces a linear dependence of emission source excitation factors on ln√sNN and predicts spectra at higher energies using this model.

Findings

Model fits experimental data well at RHIC and LHC energies.

Excitation factors depend linearly on ln√sNN.

Spectra are predicted for future colliders at 33 and 100 TeV.

Abstract

In this paper, an improved multi-source thermal model is used to analyze the transverse momentum spectra in $pp$ collisions at high energies ranging from $\sqrt{\mathrm{\it s_{NN}}}$ = 62.4 GeV to 7 TeV. We give a detailed comparison between the theoretical results and experimental data at RHIC and LHC energies. It is shown that the excitation factors of emission sources depend linearly on ln$\sqrt{\mathrm{\it s_{NN}}}$ in the framework. Based on the variation regularity of the source-excitation factors, transverse momentum spectra are predicted in $pp$ collisions at higher energies, potential future $pp$ colliders operating at $\sqrt{\mathrm{\it s_{NN}}}$ = 33 and 100 TeV.