How to Deal with Relativistic Heavy Ion Collisions

Hagedorn, Rolf

doi:10.1007/978-3-319-17545-4_26

Cited by 5 publications

(10 citation statements)

References 91 publications

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“…As already discussed, the standard quark bag leads to the proportionality between the cluster volume and hadron mass. Similar arguments within the bootstrap model [9,10], as for example discussed in the preceding Chapter 26 by R. Hagedorn, also lead to…”

Section: Thermodynamics Of the Gas Phase And The Sbmsupporting

confidence: 58%

“…We are aware of the whole problematic connected with such an idealization. A proper treatment should include collective motions and distribution of collective velocities, local temperatures, and so on [20], as explained in the preceding Chapter 26 by R. Hagedorn [10]. Triggering for high multiplicities hopefully eliminates some of the complications.…”

Section: Nuclear Collisions and Inclusive Particle Spectramentioning

confidence: 99%

“…In the statistical bootstrap, the essential step consists in the realization that a composite state of many quark bags is in itself an 'elementary' bag [1,10]. This leads directly to a nonlinear integral equation for .…”

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confidence: 99%

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Extreme States of Nuclear Matter: 1980

Rafelski¹

2016

Melting Hadrons, Boiling Quarks - From Hagedorn Temperature to Ultra-Relativistic Heavy-Ion Collisions at CERN

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Abstract. The theory of hot nuclear fireballs consisting of all possible finite-size hadronic constituents in chemical and thermal equilibrium is presented. As a complement of this hadronic gas phase characterized by maximal temperature and energy density, the quark bag description of the hadronic fireball is considered. Preliminary calculations of temperatures and mean transverse momenta of particles emitted in high multiplicity relativistic nuclear collisions together with some considerations on the observability of quark matter are offered. OverviewI wish to describe, as derived from known traits of strong interactions, the likely thermodynamic properties of hadronic matter in two different phases: the hadronic gas consisting of strongly interacting but individual baryons and mesons, and the dissolved phase of a relatively weakly interacting quark-gluon plasma. The equations of state of the hadronic gas can be used to derive the particle temperatures and mean transverse momenta in relativistic heavy ion collisons, while those of the quarkgluon plasma are more difficult to observe experimentally. They may lead to recognizable effects for strange particle yields. Clearly, the ultimate aim is to understand the behavior of hadronic matter in the region of the phase transition from gas to plasma and to find characteristic features which will allow its experimental observation. More work is still needed to reach this goal. This report is an account of my long and fruitful collaboration with R. Hagedorn [1].The theoretical techniques required for the description of the two phases are quite different: in the case of a The original address byline 1980 : Gesellschaft für Schwerionenforschung mbH, Darmstadt and Institut für Theoretische Physics der Universität Frankfurt/M; originally printed in GSI81-6 Orange Report, pp. 282-324, edited by R. Bock and R. Stock.b e-mail: rafelski@physics.arizona.edu hadronic gas, a strongly attractive interaction has to be accounted for, which leads to the formation of the numerous hadronic resonances -which are in fact bound states of several (anti) quarks. If this is really the case, then our intuition demands that at sufficiently high particle (baryon) density the individuality of such a bound state will be lost. In relativistic physics in particular, meson production at high temperatures might already lead to such a transition at moderate baryon density. As is currently believed, the quark-quark interaction is of moderate strength, allowing a perturbative treatment of the quark-gluon plasma as relativistic Fermi and Bose gases. As this is a very well studied technique to be found in several reviews [2][3][4][5][6][7][8], we shall present the relevant results for the relativistic Fermi gas and restrict the discussion to the interesting phenomenological consequences. Thus the theoretical part of this report will be devoted mainly to the strongly interacting phase of hadronic gas. We will also describe some experimental consequences for relativistic nuclear collisions such as particle t...

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Section: Thermodynamics Of the Gas Phase And The Sbmsupporting

confidence: 58%

Section: Nuclear Collisions and Inclusive Particle Spectramentioning

confidence: 99%

See 1 more Smart Citation

Extreme States of Nuclear Matter: 1980

Rafelski¹

2016

Melting Hadrons, Boiling Quarks - From Hagedorn Temperature to Ultra-Relativistic Heavy-Ion Collisions at CERN

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“…in the QM1-report [134]. Anishetty et al created the false paradigm that QGP was not produced centrally (as in center of momentum), a point that was corrected a few years later in 1982/83 in the renowned paper of J.D.…”

Section: How Did the Name Qgp Come Into Use?mentioning

confidence: 99%

Melting hadrons, boiling quarks

Rafelski

2015

Eur. Phys. J. A

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Abstract. In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed questions about properties of hadronic matter in different phases, phase transition and the exploration of quark-gluon plasma (QGP). The historical context of the discovery of QGP is shown and the role of strangeness and strange antibaryon signature of QGP illustrated. In the second part I discuss the corresponding theoretical ideas and show how experimental results can be used to describe the properties of QGP at hadronization. The material of this review is complemented by two early and unpublished reports containing the prediction of the different forms of hadron matter, and of the formation of QGP in relativistic heavy ion collisions, including the discussion of strangeness, and in particular strange antibaryon signature of QGP.

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“…That Anishetty, Koehler, and McLerran view of RHI collision dynamics is in direct conflict with the effort of Hagedorn to describe particle production in pp collisions which at the time was being adapted to the AA case and presented e.g. in the QM1-report [134]. Anishetty et.al.…”

Section: How Did the Name Qgp Come Into Use?mentioning

confidence: 99%

Melting Hadrons, Boiling Quarks

Rafelski

2015

Preprint

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In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed questions about properties of hadronic matter in different phases, phase transition and the exploration of quark-gluon plasma (QGP). The historical context of the discovery of QGP is shown and the role of strangeness and strange antibaryon signature of QGP illustrated. In the second part I discuss the corresponding theoretical ideas and show how experimental results can be used to describe the properties of QGP at hadronization. The material of this review is complemented by two early and unpublished reports containing the prediction of the different forms of hadron matter, and of the formation of QGP in relativistic heavy ion collisions, including the discussion of strangeness, and in particular strange antibaryon signature of QGP.

show abstract

How to Deal with Relativistic Heavy Ion Collisions

Cited by 5 publications

References 91 publications

Extreme States of Nuclear Matter: 1980

Extreme States of Nuclear Matter: 1980

Melting hadrons, boiling quarks

Melting Hadrons, Boiling Quarks

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