scholarly journals Global fluid fits to identified particle transverse momentum spectra from heavy-ion collisions at the Large Hadron Collider

2020 ◽  
Vol 2020 (6) ◽  
Author(s):  
D. Devetak ◽  
A. Dubla ◽  
S. Floerchinger ◽  
E. Grossi ◽  
S. Masciocchi ◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Large Hadron Collider ◽  
Heavy Ion Collisions ◽  
Hadron Collider ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra

scholarly journals Systematic investigation of the particle spectra in heavy-ion collisions at the Large Hadron Collider

2020 ◽  
Vol 35 (21) ◽  
pp. 2050177
Author(s):  
Hua Zheng ◽  
Xiangrong Zhu ◽  
Lilin Zhu ◽  
Aldo Bonasera
Keyword(s):  
Charged Particle ◽  
Transverse Momentum ◽  
Large Hadron Collider ◽  
Heavy Ion Collisions ◽  
Hadron Collider ◽  
Heavy Ion ◽  
Particle Spectrum ◽  
Ion Collisions ◽  
Particle Spectra ◽  
Fokker Planck

We investigate the charged particle spectra produced in the heavy-ion collisions at nine centralities from different systems, i.e. [Formula: see text] at [Formula: see text] TeV and 5.02 TeV as well as [Formula: see text] at [Formula: see text] TeV, at Large Hadron Collider (LHC) using one empirical formula inspired by the stationary solution of the Fokker-Planck equation, dubbed as the generalized Fokker-Planck solution (GFPS). Our results show that the GFPS can reproduce the experimental particle spectrum up to transverse momentum [Formula: see text] about 45 GeV/c with the maximum discrepancy 30% covering 10 orders of magnitude. The discrepancy between the data and the results from the GFPS decreases to 15% when the maximum of the charged particle transverse momentum is cut to 20 GeV/c. We confirmed that the Tsallis distribution derived from the non-extensive statistics, which can reproduce the particle spectra produced in small collision systems, such as [Formula: see text], up to few hundreds GeV/c, can only apply to systematically study the particle spectra up to 8 GeV/c in [Formula: see text] collisions at LHC, as pointed out in the study of identified particle spectra in [Formula: see text] collisions at [Formula: see text] TeV. A brief discussion on GFPS is also given.

NON-EXTENSIVE THERMODYNAMICS, HEAVY ION COLLISIONS AND PARTICLE PRODUCTION AT RHIC ENERGIES

2007 ◽  
Vol 16 (06) ◽  
pp. 1687-1700 ◽  
Author(s):  
BHASKAR DE ◽  
S. BHATTACHARYYA ◽  
GOUTAM SAU ◽  
S. K. BISWAS
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Nonextensive Thermodynamics ◽  
Comparison Of The Results

In the light of ideas of the nonextensive thermodynamics, we have analyzed here the transverse momentum spectra of pions and protons produced at different centralities in the interactions of P+P, D+Au and Au+Au interactions, all of them at [Formula: see text] GeV at RHIC-BNL. Comparison of the results and the comments thereon have also been made with indications of suitable hints to the physical import and implications. The overall impact and the utility of the approach along with the obtained results are discussed in detail.

scholarly journals Energy and multiplicity dependence of hadronic resonance production with ALICE at the LHC

2020 ◽  
Vol 1643 (1) ◽  
pp. 012007
Author(s):  
Angela Badalà
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Pp Collisions ◽  
Alice Experiment ◽  
Ion Collisions ◽  
Scattering Effects ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Hadronic Resonances

Abstract The study of hadronic resonances plays an important role both in pp and in heavy-ion collisions. Since the lifetimes of short-lived resonances are comparable with the lifetime of the fireball formed in heavy-ion collisions, regeneration and re-scattering effects can modify the measured yields, especially at low transverse momentum. Measurements in pp collisions at different energies constitute a baseline for studies in heavy-ion collisions and provide constraints for tuning QCD-inspired event generators. Furthermore, high multiplicity pp collisions, where the density and the volume of the system are expected to be larger compared to minimum bias pp collisions, can help in the search for the onset of collective phenomena. Here we present recent results on short-lived hadronic resonances obtained by the ALICE experiment at LHC energies in different collision systems (pp, p–Pb and Pb–Pb) including new results obtained in Xe–Xe collisions. The ALICE results on transverse momentum spectra, yields and their ratios to long-lived particles will be discussed.

scholarly journals ANALYZING NONEXTENSIVITY OF η-SPECTRA IN RELATIVISTIC HEAVY ION COLLISIONS AT $\sqrt{s_{NN}} = 200~{\rm GeV}$

2010 ◽  
Vol 25 (06) ◽  
pp. 1239-1251 ◽  
Author(s):  
BHASKAR DE ◽  
GOUTAM SAU ◽  
S. K. BISWAS ◽  
S. BHATTACHARYYA ◽  
P. GUPTAROY
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra

The transverse momentum spectra of secondary η particles produced in P+P, D + Au and Au + Au interactions at [Formula: see text] at different centralities have been studied in the light of a nonextensive thermodynamical approach. The results and the possible thermodynamical insights, thus obtained, about the hadronizing process have also been discussed in detail.

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