Thermal radiation and inclusive production in the running coupling k(T)-factorization approach

Author(s)

Giannini, A. V. ^[1] ; Goncalves, V. P. ^[2] ; Silva, P. V. R. G. ^[2]

Affiliation

^[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP - Brazil

^[2] Univ Fed Pelotas, Inst Fis & Matemat, Caixa Postal 354, BR-96010900 Pelotas, RS - Brazil

• Document type: Journal article
• Source: EUROPEAN PHYSICAL JOURNAL A; v. 57, n. 2 FEB 2021.
• Web of Science Citations: 1

Abstract

The characteristics of the thermal radiation are investigated using a two-component model, with the hard component being described by the Color Glass Condensate formalism. The inclusive transverse momentum spectra of charged hadrons produced in proton-proton and proton-nucleus collisions at LHC energies and large - p(T) are estimated using the running coupling k(T)-factorization formula and the solution of the Balitsky-Kovchegov equation. Our results indicate that the thermal term is necessary to describe the experimental data and that the effective thermal temperature has an energy dependence similar to the saturation scale. We demonstrate that the enhancement of the thermal temperature in pPb collisions is consistent with that predicted by the saturation scale. (AU)

• FAPESP's process: 17/14974-8 - Phenomenology of relativistic heavy-ion collisions: QCD under extreme conditions
• Grantee: André Veiga Giannini
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/23677-0 - Early-time dynamics of hadronic collisions beyond the Gaussian approximation of the Color Glass Condensate
• Grantee: André Veiga Giannini
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor