Heavy-flavour hadronization in ultra-relativistic heavy-ion collisions: From AA to pp

被引：0
作者：
Plumari, S. [1 ,2 ]
Minissale, V. [1 ,2 ]
Sun, Y. [3 ,4 ]
Greco, V. [1 ,2 ]
机构：
[1] Univ Catania, Dept Phys & Astron E Majorana, Via S Sofia 64, I-195125 Catania, Italy
[2] INFN, Lab Nazl Sud, LNS, Via S Sofia 62, I-95123 Catania, Italy
[3] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China
[4] Shanghai Jiao Tong Univ, Key Lab Particle Astrophys & Cosmol MOE, Shanghai 200240, Peoples R China
来源：
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS | 2024年 / 47卷 / 04期
关键词：
PROTON-PROTON; FRAGMENTATION;
D O I：
10.1393/ncc/i2024-24223-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
. - The Lambda c /D 0 ratio observed in AA collisions at RHIC and LHC energies have a value of the order of the unity. On the other hand, the recent experimental measurements in pp collisions at both root s = 5.02 TeV and root s = 13 TeV have shown ratios for charm baryons/mesons Lambda c /D 0 and Xi c /D 0 larger than those measured and expected in elementary e + e - collisions. We present a hadronization mechanism based on the coalescence and fragmentation processes and we show that this model gives a consistent description of several observables involving heavyflavour hadrons from AA collisions to pp collisions. The results obtained within this approach suggest that a description of charmed hadron production in pp collisions require the assumption of the formation of a hot QCD matter at finite temperature. Finally, extending this approach to study the production of hadrons containing multiple charm quarks, Xi cc , Omega cc and Omega ccc we provide the predictions of multi -charmed hadrons in different collision systems, like Pb+Pb, Kr+Kr, Ar+Ar and O+O.
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