Quark-antiquark production from classical fields and chemical equilibration

F Gelis; Keijo Kajantie; Tuomas Lappi

doi:10.1016/j.nuclphysa.2006.06.141

Quark-antiquark production from classical fields and chemical equilibration

F Gelis, Keijo Kajantie, Tuomas Lappi

Forskningsoutput: Tidskriftsbidrag › Konferensartikel › Vetenskaplig › Peer review

Sammanfattning

We compute by numerical integration of the Dirac equation the number of quark-antiquark pairs produced in the classical color fields of colliding ultrarelativistic nuclei. The backreaction of the created pairs on the color fields is not taken into account. While the number of q (q) over bar pairs is parametrically suppressed in the coupling constant, we find that in this classical field model it could even be compatible with the thermal ratio to the number of gluons. After isotropization one could thus have quark-gluon plasma in chemical equilibrium.

Originalspråk	engelska
Tidskrift	Nuclear Physics, Section A
Volym	774
Sidor (från-till)	809-812
Antal sidor	4
ISSN	0375-9474
DOI	https://doi.org/10.1016/j.nuclphysa.2006.06.141
Status	Publicerad - 2006
MoE-publikationstyp	A4 Artikel i en konferenspublikation
Evenemang	Unknown host publication - , Holland Varaktighet: 1 jan. 1800 → …

Vetenskapsgrenar

114 Fysik

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10.1016/j.nuclphysa.2006.06.141

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title = "Quark-antiquark production from classical fields and chemical equilibration",

abstract = "We compute by numerical integration of the Dirac equation the number of quark-antiquark pairs produced in the classical color fields of colliding ultrarelativistic nuclei. The backreaction of the created pairs on the color fields is not taken into account. While the number of q (q) over bar pairs is parametrically suppressed in the coupling constant, we find that in this classical field model it could even be compatible with the thermal ratio to the number of gluons. After isotropization one could thus have quark-gluon plasma in chemical equilibrium.",

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author = "F Gelis and Keijo Kajantie and Tuomas Lappi",

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doi = "10.1016/j.nuclphysa.2006.06.141",

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T1 - Quark-antiquark production from classical fields and chemical equilibration

AU - Gelis, F

AU - Kajantie, Keijo

AU - Lappi, Tuomas

N1 - Volume: 774

PY - 2006

Y1 - 2006

N2 - We compute by numerical integration of the Dirac equation the number of quark-antiquark pairs produced in the classical color fields of colliding ultrarelativistic nuclei. The backreaction of the created pairs on the color fields is not taken into account. While the number of q (q) over bar pairs is parametrically suppressed in the coupling constant, we find that in this classical field model it could even be compatible with the thermal ratio to the number of gluons. After isotropization one could thus have quark-gluon plasma in chemical equilibrium.

AB - We compute by numerical integration of the Dirac equation the number of quark-antiquark pairs produced in the classical color fields of colliding ultrarelativistic nuclei. The backreaction of the created pairs on the color fields is not taken into account. While the number of q (q) over bar pairs is parametrically suppressed in the coupling constant, we find that in this classical field model it could even be compatible with the thermal ratio to the number of gluons. After isotropization one could thus have quark-gluon plasma in chemical equilibrium.

KW - 114 Physical sciences

U2 - 10.1016/j.nuclphysa.2006.06.141

DO - 10.1016/j.nuclphysa.2006.06.141

M3 - Conference article

SN - 0375-9474

VL - 774

SP - 809

EP - 812

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

T2 - Unknown host publication

Y2 - 1 January 1800

ER -