Strangeness Production in Heavy-Ion Collisions

Margetis, S.; Baillie, O. Villalobos

doi:10.1146/annurev.nucl.50.1.299

Cited by 29 publications

(18 citation statements)

References 98 publications

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“…The temperature parameter is found in all high energy collisions (pp, e + e − , A+A) to be about 160 -170 MeV, while γ s increases from 0.5 − 0.6 in pp to 0.9 − 1 in A+A [61,62]. The disappearance of strangeness suppression in nuclear collisions [63,64], usually called strangeness enhancement, was one of the first signals predicted for the QGP [65], and the fact that the bulk of all particles are produced in heavy ion reactions with thermal ratios to very good approximation (typically < 10-20%) is considered to be an essential and well established fact. Fig.…”

Section: Identified Particle Yieldsmentioning

confidence: 99%

First Results from Pb+Pb Collisions at the LHC

Müller

Schukraft

Wysłouch

2012

Annu. Rev. Nucl. Part. Sci.

432

355

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At the end of 2010, the CERN Large Hadron Collider started operation with heavy ion beams, colliding lead nuclei at a centre-of-mass energy of 2.76 TeV/nucleon and opening a new era in ultrarelativistic heavy ion physics at energies exceeding previous accelerators by more than an order of magnitude. This review summarizes the results from the first year of heavy ion physics at LHC obtained by the three experiments participating in the heavy ion program, ALICE, ATLAS, and CMS.

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Section: Identified Particle Yieldsmentioning

confidence: 99%

First Results from Pb+Pb Collisions at the LHC

Müller

Schukraft

Wysłouch

2012

Annu. Rev. Nucl. Part. Sci.

432

355

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“…The temperature parameter is found in all high energy collisions (pp, e + e − , A+A) to be about 160 -170 MeV, while γ s increases from 0.5 − 0.6 in pp to 0.9 − 1 in A+A [12,23]. This disappearance of strangeness suppression in nuclear collisions [24,25], the so-called strangeness enhancement, and the fact that the bulk of all particles are produced in heavy-ion reactions with thermal ratios to very good approximation (typically < 10-20%) is considered to be an essential and well established fact.…”

Section: Strangeness Enhancementmentioning

confidence: 99%

ALICE Masterclass on strangeness

Foka

Janik

2014

EPJ Web of Conferences

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Abstract. An educational activity, the International Particle Physics Masterclasses, was developed by the International Particle Physics Outreach Group with the aim to bring the excitement of cutting-edge particle-physics research into the classroom. Thousands of pupils, every year since 2005, in many countries all over the world, are hosted in research centers or universities close to their schools and become "scientists for a day" as they are introduced to the mysteries of particle physics. The program of a typical day includes lectures that give insight to topics and methods of fundamental research followed by a "hands-on" session where the high-school students perform themselves measurements on real data from particle-physics experiments. The last three years data from the ALICE experiment at LHC were used. The performed measurement "strangeness enhancement" and the employed methodology are presented.

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“…With the availability of Pb beams at the SPS these studies were extended in the years after 1994 toward a systematic study of the system size dependence of this effect, including the rare Ω hyperon [111,112,113]. A review of the experimental results available after the first round of CERN experiments with Pb beams at 158A GeV can be found in [114]. Figure 6 shows the strange particle enhancement in Pb+Pb collisions relative to p+Be interactions as observed by the NA57 experiment [112].…”

Section: Basic Observationsmentioning

confidence: 99%

“…This method is complementary to dE/dx or TOF measurement and can provide an independent way of particle identification with different systematic effects [130]. However, there are substantial sources of background, like charged hyperon and pion decays, as well as multiple scattering in the detector material [114]. The method is limited to particles that decay inside the sensitive area of the tracking devices which reduces the available statistics.…”

Section: Charged Kaonsmentioning

confidence: 99%

Strange hadron production in heavy ion collisions from SPS to RHIC

Blume

Markert

2011

Progress in Particle and Nuclear Physics

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Strange particles have been a very important observable in the search for a deconfined state of strongly interacting matter, the quark-gluon plasma (QGP), which is expected to be formed in ultra-relativistic heavy ion collisions. We review the main experimental observations made at the Super Proton Synchrotron (SPS) at CERN, Geneva, and at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). The large amount of recently collected data allows for a comprehensive study of strangeness production as a function of energy and system size. We review results on yields, transverse mass and rapidity spectra, as well as elliptic flow. The measurements are interpreted in the context of various theoretical concepts and their implications are discussed. Of particular interest is the question whether strange particles are in any way sensitive to a partonic phase. Finally, a compilation of experimental data is provided.Comment: 73 pages, 39 figures, Review article for "Prog. Part. Nucl. Phys." (Elsevier) http://dx.doi.org/10.1016/j.ppnp.2011.05.00

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Strangeness Production in Heavy-Ion Collisions

Cited by 29 publications

References 98 publications

First Results from Pb+Pb Collisions at the LHC

First Results from Pb+Pb Collisions at the LHC

ALICE Masterclass on strangeness

Strange hadron production in heavy ion collisions from SPS to RHIC

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