Non-perturbative particle production mechanism in time-dependent strong non-Abelian fields

P. Lévai, Vladimir V. Skokov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Non-perturbative production of quark-antiquarks is investigated in the early stage of heavy-ion collisions. The time-dependent study is based on a kinetic description of the fermion-pair production in strong non-Abelian fields. We introduce time-dependent chromo-electric external field with a pulse-like time evolution to simulate the overlap of two colliding heavy ions. We have found that the small inverse duration time of the field pulse determines the efficiency of the quark-pair production. The expected suppression for heavy quark production, as follows from the Schwinger formula for a constant field, is not seen, but an enhanced heavy quark production appears at ultrarelativistic energies. We convert our pulse duration time-dependent results into collisional energy dependence and introduce energy and flavour-dependent string tensions, which can be used in string based model calculations at RHIC and LHC energies.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages118-123
Number of pages6
Volume1348
DOIs
Publication statusPublished - 2011
Event5th International Workshop on High-pT Physics at LHC - Mexico, Mexico
Duration: Sep 27 2010Oct 1 2010

Other

Other5th International Workshop on High-pT Physics at LHC
CountryMexico
CityMexico
Period9/27/1010/1/10

Fingerprint

particle production
quarks
pair production
strings
energy
pulses
ionic collisions
heavy ions
pulse duration
fermions
retarding
kinetics

Keywords

  • non-Abelian field
  • Quark-antiquark pair
  • Schwinger mechanism
  • strong fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Non-perturbative particle production mechanism in time-dependent strong non-Abelian fields. / Lévai, P.; Skokov, Vladimir V.

AIP Conference Proceedings. Vol. 1348 2011. p. 118-123.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lévai, P & Skokov, VV 2011, Non-perturbative particle production mechanism in time-dependent strong non-Abelian fields. in AIP Conference Proceedings. vol. 1348, pp. 118-123, 5th International Workshop on High-pT Physics at LHC, Mexico, Mexico, 9/27/10. https://doi.org/10.1063/1.3579439
Lévai, P. ; Skokov, Vladimir V. / Non-perturbative particle production mechanism in time-dependent strong non-Abelian fields. AIP Conference Proceedings. Vol. 1348 2011. pp. 118-123
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