scholarly journals Study of Strange Particle Production in Central Pb–Pb Collisions at

2021 ◽  
pp. 1-6
Author(s):  
Arif A ◽  
◽  
Haseeb MQ ◽  
Suleymanov MK ◽  
◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Particle Production ◽  
Simulation Models ◽  
Strange Particle ◽  
Loss Mechanism ◽  
Momentum Range ◽  
Strange Particle Production ◽  
Strange Particles ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra

We study here the transverse momentum spectra of Ks 0 – mesons, A − hyperons and multi–strange (Ξ–, Ω–) particles in the most central Pb–Pb collisions at √SNN = 2.76 TeV for the mid rapidity interval |y| < 0.5 by using two different Monte Carlo simulation models: EPOS–1.99 and EPOS–LHC. The validity of simulation codes of these models is checked for Pb–Pb collisions at √SNN = 2.76 TeV by comparing the simulation data with ALICE experimental data for the same collisions at √SNN = 2.76 TeV. Strange particles ratio i.e. and nuclear modification factors for multi–strange particles have been constructed as function of pT to study these strange particle production and their energy loss mechanism. The simulation models show suppression for the multi–strange particles in the transverse momentum range of 3–7 GeV/c. The outcome agrees with a recent finding by ALICE collaboration where it suggested a possibility that the kinetic freeze–out conditions for strange particles are different from those for non–strange particles

scholarly journals Strange and multi-strange particle production in Pb-Pb collisions at $\sqrt{s_{{\rm NN}}} = 2.76~{\rm TeV}$ with ALICE

2014 ◽  
Vol 29 ◽  
pp. 1460228
Author(s):  
Zhongbao Yin ◽  
Keyword(s):  
Transverse Momentum ◽  
Particle Production ◽  
Strange Particle ◽  
Hadron Production ◽  
Particle Ratios ◽  
Strange Hadron ◽  
Strange Particle Production ◽  
Momentum Spectra ◽  
Strangeness Enhancement ◽  
Transverse Momentum Spectra

We present ALICE results on strange and multi-strange hadron production as a function of centrality in Pb-Pb collisions at [Formula: see text] at the LHC. Their transverse momentum spectra, yields and particle ratios are compared to the corresponding measurements in pp collisions to address strangeness enhancement and high p T particle suppression. The results are also compared to measurements at RHIC and SPS energies.

New indication on scaling properties of strangeness production in pp collisions at RHIC

2017 ◽  
Vol 32 (05) ◽  
pp. 1750029 ◽  
Author(s):  
M. V. Tokarev ◽  
I. Zborovský
Keyword(s):  
Transverse Momentum ◽  
New Physics ◽  
Self Similarity ◽  
Scaling Properties ◽  
High Energies ◽  
Strange Particles ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Text Presentation ◽  
Fragmentation Processes

Experimental data on transverse momentum spectra of strange particles [Formula: see text] produced in [Formula: see text] collisions at [Formula: see text] obtained by the STAR and PHENIX collaborations at RHIC are analyzed in the framework of [Formula: see text]-scaling approach. The concept of the [Formula: see text]-scaling is based on fundamental principles of self-similarity, locality, and fractality of hadron interactions at high energies. General properties of the data [Formula: see text]-presentation are studied. Self-similarity of fractal structure of protons and fragmentation processes with strange particles is discussed. A microscopic scenario of constituent interactions developed within the [Formula: see text]-scaling scheme is used to study the dependence of momentum fractions and recoil mass on the collision energy, transverse momentum and mass of produced inclusive particle, and to estimate the constituent energy loss. We consider that obtained results can be useful in study of strangeness origin, in searching for new physics with strange probes, and can serve for better understanding of fractality of hadron interactions at small scales.

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 Inferring freeze-out parameters from pion measurements at RHIC and LHC

2015 ◽  
Vol 24 (06) ◽  
pp. 1550046 ◽  
Author(s):  
Priyanka Sett ◽  
Prashant Shukla
Keyword(s):  
Transverse Momentum ◽  
System Size ◽  
Transverse Flow ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity ◽  
Momentum Range ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Tsallis Distribution ◽  
Freeze Out

We analyze the transverse momentum spectra of charged pions measured in Au + Au collisions at [Formula: see text] and in Pb + Pb collisions at [Formula: see text] using the Tsallis distribution modified to include transverse flow. All the spectra are well described by the modified Tsallis distribution in an extended transverse momentum range upto 6 GeV/c. The kinetic freeze-out temperature (T), average transverse flow (β) and degree of nonthermalization (q) are obtained as a function of system size for both the energies. With increasing system size β shows increasing trend whereas T remains constant. While the systems at RHIC and LHC energies show similar β and q, the parameter T is higher at LHC as compared to RHIC. The kinetic freeze-out temperature is also extracted using the measured charged particle multiplicity and HBT volume of the system as a function of system size and collision energies.

scholarly journals ϕ meson production at forward rapidity in pp and Pb–Pb collisions with ALICE at the LHC

2018 ◽  
Vol 171 ◽  
pp. 13006
Author(s):  
Alessandro De Falco
Keyword(s):  
Transverse Momentum ◽  
Center Of Mass ◽  
Meson Production ◽  
Forward Rapidity ◽  
Momentum Range ◽  
Alice Collaboration ◽  
Dimuon Channel ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
8 Tev

The ALICE Collaboration has measured ϕ meson production in the dimuon channel at the forward rapidity (2.5 < y < 4) in pp and Pb–Pb collisions at several center of mass energies. Results in pp collisions at center of mass energies √s = 5.02 and 8 TeV are reported. They complement the previously published results at √s = 2.76 and √s = 7 TeV, providing a solid baseline for Pb–Pb collisions. In Pb–Pb, the preliminary ϕ meson transverse momentum spectra for different centrality classes and the yields as a function of the collision centrality in the transverse momentum range 2 < pT < 7 GeV/c are presented.

scholarly journals Transverse Momentum Spectra ofKS0andK*0at Midrapidity ind+ Au, Cu + Cu, andp+pCollisions atsNN=200 GeV

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Bao-Chun Li ◽  
Guo-Xing Zhang ◽  
Yuan-Yuan Guo
Keyword(s):  
Transverse Momentum ◽  
Particle Production ◽  
Tsallis Statistics ◽  
Thermodynamics Parameters ◽  
Momentum Spectra ◽  
200 Gev ◽  
Transverse Momentum Spectra ◽  
Boltzmann Statistics

We analyze transverse momentum spectra ofKS0andK*0at midrapidity ind+ Au, Cu + Cu, andp+pcollisions atsNN=200 GeV in the formworks of Tsallis statistics and Boltzmann statistics, respectively. Both of them can describe the transverse momentum spectra and extract the thermodynamics parameters of matter evolution in the collisions. The parameters are helpful for us to understand the thermodynamics factors of the particle production.

PARTICLE PRODUCTION IN RHIC, THE pT-SPECTRA AND A NEW APPROACH

2003 ◽  
Vol 18 (13) ◽  
pp. 2367-2377
Author(s):  
BHASKAR DE ◽  
S. BHATTACHARYYA ◽  
P. GUPTAROY
Keyword(s):  
Transverse Momentum ◽  
Particle Production ◽  
Recent Past ◽  
Main Category ◽  
New Approach ◽  
Secondary Particles ◽  
Momentum Spectra ◽  
Charged Pions ◽  
Transverse Momentum Spectra ◽  
The Impact

The RHIC measurements on the transverse momentum spectra of the main category of secondary particles produced in the Au + Au collisions were reported in the recent past. The combination of the phenomenological approaches we adopted provide a satisfactory, alternative framework for understanding and explaining the latest data-spurts on charged pions, kaons and the protons–antiprotons. The comparison of the performances by the contesting models on a select kind of secondary (π+) which belongs to the most abundant variety has also been made. The impact and implications of all these have also been spelt out in the end.

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