On the relation between the soft and hard parts of the transverse momentum distribution

Autor:	Pajares, C., Ramírez, J. E.
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	Usually, the transverse momentum distribution is described by a sum of an exponential decay term plus a decreasing power like contribution representing the soft non-perturbative and hard perturbative QCD collisions, respectively. In this paper, we derive an analytical function that can describe the whole transverse momentum spectrum. This is obtained using a $q$-Gaussian distribution to describe the string tension fluctuations. The parameter $q$ determines the departure of the thermal distribution as well as the minimum length that can be explored at high transverse momentum. We also show that the ratio between both scales only depends on the $q$ parameter. Comment: 10 pages, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2212.08887 Zobrazit plný text záznamu View this record from Arxiv