Hadron production and quark-gluon plasma hadronization in Pb-Pb collisions atsNN=2.76 TeV

The measurements of light hadron production in small collision systems (such as p+Al, p+Au, d+Au, 3He+Au) may allow to explore the quarkgluon plasma formation and to determine the main hadronization mechanism in the considered collisions. Such research has become particularly crucial with the observation of the light hadrons collective behavior in p/d/3He+Au collisions at √SNN = 200 GeV and in p+Al collisions at the same energy at forward and backward rapidities. Among the large variety of light hadrons, ϕ meson is of particular interest since its production is sensitive to the presence of the quark-gluon plasma. The paper presents the comparison of the obtained experimental results on ϕ meson production to different light hadron production in p+Al and 3He+Au at √SNN = 200 GeV at midrapidity. The comparisons of ϕ meson production in p+Al, p+Au, d+Au, and 3He+Au collisions at √SNN = 200 GeV at midrapidity to theoretical models predictions (PYTHIA model and default and string melting versions of the AMPT model) are also provided. The results suggest that the QGP can be formed in p/d/3He+Au collisions, but the volume and lifetime of the produced medium might be insufficient for observation of strangeness enhancement effect. Conceivably, the main hadronization mechanism of ϕ meson production in p+Al collisions is fragmentation, while in p/d/3He+Au collisions this process occurs via coalescence.

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OBSERVING QUARK-GLUON PLASMA WITH STRANGE HADRONS

International Journal of Modern Physics E ◽

10.1142/s0218301300000076 ◽

2000 ◽

Vol 09 (02) ◽

pp. 107-147 ◽

Cited By ~ 29

Author(s):

JEAN LETESSIER ◽

JOHANN RAFELSKI

Keyword(s):

Quark Gluon Plasma ◽

Beam Energy ◽

Particle Production ◽

Heavy Ion ◽

Gluon Plasma ◽

Hadron Production ◽

Dynamical Theory ◽

Heavy Ion Collision ◽

Strange Hadron ◽

Ion Collision

We review the methods and results obtained in an analysis of the experimental heavy ion collision research program at nuclear beam energy of 160–200 A GeV. We study strange, and more generally, hadronic particle production experimental data. We discuss present expectations concerning how these observables will perform at other collision energies. We also present the dynamical theory of strangeness production and apply it to show that it agrees with available experimental results. We describe strange hadron production from the baryon-poor quark-gluon phase formed at much higher reaction energies, where the abundance of strange baryons and antibaryons exceeds that of nonstrange baryons and antibaryons.

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News from the strong interactions program of NA61/SHINE

EPJ Web of Conferences ◽

10.1051/epjconf/202225805007 ◽

2022 ◽

Vol 258 ◽

pp. 05007

Author(s):

Wojciech Bryliński ◽

Keyword(s):

Quark Gluon Plasma ◽

Theoretical Models ◽

Heavy Ion ◽

Gluon Plasma ◽

Hadron Production ◽

Beam Momentum ◽

Strong Interactions ◽

Neutrino Experiment ◽

Net Charge ◽

Wide Range

NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a fixedtarget experiment operating at the CERN SPS accelerator. The main goal of the strong interactions program of NA61/SHINE is to study the properties of the phase transition between confined matter and quark-gluon plasma by performing a two-dimensional scan in beam momentum and size of collided nuclei. Within this program, collisions of different systems (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb) over a wide range of beam momenta (13A-150(8)A GeV/c) have been recorded. This contribution discusses the latest results of hadron production in p+p, Be+Be, Ar+Sc and Pb+Pb reactions measured by the NA61/SHINE. In particular, the results include charged kaons and pions spectra and higher-order moments of multiplicity and net charge distributions. The presented data are compared with the predictions of different theoretical models as well as the results from other experiments. Finally, the motivation and plans for future NA61/SHINE measurements are discussed.

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Evidence for quark gluon plasma from hadron production in high energy nuclear collisions

Nuclear Physics A ◽

10.1016/s0375-9474(00)00497-8 ◽

2001 ◽

Vol 681 (1-4) ◽

pp. 153-156 ◽

Cited By ~ 7

Author(s):

M. Gaździcki

Keyword(s):

Quark Gluon Plasma ◽

Gluon Plasma ◽

High Energy ◽

Hadron Production ◽

Nuclear Collisions

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Overview of hard hadron production results in ALICE

EPJ Web of Conferences ◽

10.1051/epjconf/201922201003 ◽

2019 ◽

Vol 222 ◽

pp. 01003

Author(s):

Dmitri Peresunko

Keyword(s):

Quark Gluon Plasma ◽

Heavy Ion ◽

Gluon Plasma ◽

Hadron Production ◽

Dense Medium ◽

Parton Energy Loss ◽

Alice Experiment ◽

Ion Collisions ◽

Hot Matter ◽

Ultrarelativistic Heavy Ion Collisions

The ALICE experiment is designed to study the properties the hot and dense medium, the Quark-Gluon Plasma (QGP), produced in ultrarelativistic heavy-ion collisions at the LHC. Measuring production of hadrons with large Q2 transfer in these collisions provides the possibility to explore one of the most spectacular effects — the in-medium parton energy loss. By varying the observables among light and heavy flavored hadrons and fully reconstructed jets and by changing the colliding systems from pp to p–Pb and Pb–Pb, one can explore the transport properties of hot matter in great details. Here an overview of recent ALICE results on high-pT hadron and jet production in pp, p-A and A-A collisions at LHC energies is presented.

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