Quark-antiquark production from classical fields in heavy ion collisions: 1+1 dimensions

F. Gelis; K. Kajantie; T. Lappi

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Quark-antiquark production from classical fields in heavy ion collisions: 1+1 dimensions

F. Gelis, K. Kajantie, T. Lappi

High Energy Physics - Phenomenology · Submitted 6 Sep 2004

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim This computation is essential for understanding the conversion of the initial gluonic state to chemically equilibrated quark-gluon plasma.

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arXiv IDhep-ph/0409058 (version 2)

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CitationF. Gelis, K. Kajantie, T. Lappi. "Quark-antiquark production from classical fields in heavy ion collisions: 1+1 dimensions." arXiv:hep-ph/0409058 (2004). https://pith.science/paper/ERHWQOMS

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What the abstract itself states, as probabilities: claims first 0.05 · states limitation 0.76 · human participants 0.01 · controlled comparison 0.02 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.05 · mentions code or data availability 0.02.

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Classical color fields produced by the small-x wave functions of colliding ultrarelativistic nuclei have been numerically computed. We set up the framework for computing the production of small-mass quark-antiquark pairs in these color fields by numerically integrating the Dirac equation. This computation is essential for understanding the conversion of the initial gluonic state to chemically equilibrated quark-gluon plasma. To illustrate and overcome technical difficulties associated with the longitudinal dimension, we first consider numerically the case of one time + one longitudinal space dimension.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Classical color fields produced by the small-x wave functions of colliding ultrarelativistic nuclei have been numerically computed.	contribution 0.39	0.75	0.04	asserted 1.00
s1	We set up the framework for computing the production of small-mass quark-antiquark pairs in these color fields by numerically integrating the Dirac equation.	method 0.92	0.93	0.05	asserted 0.98
s2	This computation is essential for understanding the conversion of the initial gluonic state to chemically equilibrated quark-gluon plasma.	interpretation 0.55	0.12	0.09	asserted 0.99
s3	To illustrate and overcome technical difficulties associated with the longitudinal dimension, we first consider numerically the case of one time + one longitudinal space dimension.	method 0.84	0.90	0.04	asserted 0.96

What kind of paper the classifier reports this is: simulation study 0.98 · evidence from simulation or computation 1.00.

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arXiv listing abstract v2

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full text
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The paper

Original abstract

Classical color fields produced by the small-x wave functions of colliding ultrarelativistic nuclei have been numerically computed. We set up the framework for computing the production of small-mass quark-antiquark pairs in these color fields by numerically integrating the Dirac equation. This computation is essential for understanding the conversion of the initial gluonic state to chemically equilibrated quark-gluon plasma. To illustrate and overcome technical difficulties associated with the longitudinal dimension, we first consider numerically the case of one time + one longitudinal space dimension.

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References

Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Transport of hard probes in the glasma
hep-ph 2026-10 conditional novelty 7.0 of 10

Jets and heavy quarks acquire large, anisotropic momentum broadening in the glasma, larger than in the quark-gluon plasma, and this measurably decorrelates back-to-back charm-anticharm pairs.
Wilson line correlator in the MV model: relating the glasma to deep inelastic scattering
hep-ph 2007-11 accept novelty 6.0 of 10

The Wilson line correlator computed with the standard glasma lattice prescription gives Qs approximately 0.6 g squared mu, revising the gluon liberation coefficient to c approximately 1.1.
Production of q bar-q Pairs in Proton-Nucleus Collisions at High Energies
hep-ph 2006-03 conditional novelty 6.0 of 10

A new derivation gives single- and double-inclusive quark-antiquark production cross sections in pA collisions, expressed via dipole-nucleus scattering amplitudes with quantum evolution.
Some Features of the Glasma
hep-ph 2006-02 conditional novelty 5.0 of 10

High-energy heavy-ion collisions create, immediately after impact, longitudinal color electric and magnetic fields, giving a large Chern-Simons charge density that decays as the Glasma turns into quark-gluon plasma.
Schwinger mechanism revisited
hep-ph 2015-10 accept novelty 2.0 of 10

The review organizes and compares modern methods for computing Schwinger pair production in general space- and time-dependent electric fields.

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9 arXiv papers cite this in 12 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 9 sentences without a confident label

Uses its method or tool 1 paper

In principle, a better approach would be to couple the production and propagation of the quarks in the glasma fields dynamically, e.g. by both considering quark production in strong non-Abelian background fields and solving the Dirac equation in these fields, as done in [ref] .

The impact of glasma on heavy flavor azimuthal correlations and spectra · Nuclear modification factor · 0.80

Cites it as background 2 papers

Previous studies have focused on quark degrees of freedom during the approach to thermalization and chemical equilibrium [ref] .

Initial state fluctuations of QCD conserved charges in heavy-ion collisions · Introduction · 0.96
Notably, the quantum Dirac equation for quark propagating in Glasma background fields has been studied in the context of quark production [ref] .

Light-front Hamiltonian jet evolution in the Glasma · Introduction · 0.98

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