scholarly journals Alternative scenarios of relativistic heavy-ion collisions. III. Transverse momentum spectra

2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Yu. B. Ivanov
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Alternative Scenarios

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.

STUDIES IN RAPIDITY AND pT-SPECTRA OF PIONS IN HIGH ENERGY NN, NA AND AA COLLISIONS: A COMPREHENSIVE APPROACH

2002 ◽  
Vol 17 (30) ◽  
pp. 4615-4634 ◽  
Author(s):  
BHASKAR DE ◽  
S. BHATTACHARYYA ◽  
P. GUPTAROY
Keyword(s):  
Transverse Momentum ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Wide Range ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Aa Collisions

The present paper aims at testing a very simple approach to interpret the characteristics of inclusive production of pions in high energy NA and AA collisions by a somewhat in-depth analysis of the same for NN interactions; and also at reporting here thus some interesting observations made on the nature of rapidity and transverse momentum spectra of the produced pions. And this approach is built upon a newly offered master formula holding the key for converting the results of high energy nucleon–nucleon (NN) collision to the corresponding observables on differential and inclusive cross-sections for both nucleon–nucleus and nucleus–nucleus (heavy ion) collisions in a generalized form. The proposed formulae, used in a somewhat phenomenological way, can provide modestly reliable parametrization of data in the broad range of collision energy and the varied range of projectile-target combinations. This opens up the possibility of understanding in a quite unified manner the large amount of data on the rapidity and transverse momentum spectra in a wide range of interactions and energies starting right from ISR, rather Bevelac, to the relativistic heavy ion collisions (RHIC) via the various collider scales of energy. The agreements between the data and calculations, in most cases, are quite satisfactory both qualitatively and quantitatively. While highlighting this success, the limitation of the approach has also been pointed out in the end as clearly and categorically as possible.

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.

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