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

被引：3

作者：

Pajares, C. ^{[1
,2
]}

Ramirez, J. E. ^{[3
]}

机构：

[1] Univ Santiago De Compostela, Dept Fis Particulas, Santiago De Compostela 15782, Spain

[2] Univ Santiago De Compostela, Inst Galego Fis Altas Enerxias, Santiago De Compostela 15782, Spain

[3] Benemerita Univ Autonoma Puebla, Ctr Agroecol, Inst Ciencias, Apartado Postal 165, Puebla 72000, Mexico

来源：

EUROPEAN PHYSICAL JOURNAL A | 2023年 / 59卷 / 11期

关键词：

NON-EXTENSIVE APPROACH; ANOMALOUS DIFFUSION; STRING PERCOLATION; COLOR SOURCES; STATISTICS; FLUCTUATIONS; FOUNDATION; PARAMETERS;

D O I：

10.1140/epja/s10050-023-01170-w

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页数：7

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