Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions

Geiger, K

doi:10.1103/PhysRevLett.71.3075

Title: Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions

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Abstract

The dependence on invariant mass [ital M] and transverse momentum [ital q][sub [perpendicular]] of lepton pairs emitted by quarks during the early stage of central collisions between gold nuclei at [radical][ital s] =200[ital A] GeV is investigated within the parton cascade model. For fixed transverse mass [ital M][sub [perpendicular]] between 2 and 3 GeV, the spectrum is thermal shaped at low [ital q][sub [perpendicular]] and exhibits a power law behavior at larger [ital q][sub [perpendicular]]. A suspected [ital M][sub [perpendicular]] scaling is not observed in the calculated distribution, but the significant shape of the spectrum and the large yield from preequilibrium emission may nevertheless serve as a characteristic signal for a parton plasma formation.

Authors:

Geiger, K ^[1]

School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

Publication Date:: Mon Nov 08 00:00:00 EST 1993

OSTI Identifier:: 5539728

DOE Contract Number:: FG02-87ER40328

Resource Type:: Journal Article

Journal Name:: Physical Review Letters; (United States)

Additional Journal Information:: Journal Volume: 71:19; Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HEAVY ION REACTIONS; QUARK MATTER; PAIR PRODUCTION; LEPTONS; MASS SPECTRA; CASCADE THEORY; EQUILIBRIUM; PARTON MODEL; CHARGED-PARTICLE REACTIONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; MATHEMATICAL MODELS; MATTER; NUCLEAR REACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; SPECTRA; 663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-); 662230 - Quantum Chromodynamics- (1992-); 663300 - Nuclear Reactions & Scattering, General- (1992-)

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                    Geiger, K. Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions.  United States: N. p., 1993. 
        Web.  doi:10.1103/PhysRevLett.71.3075.

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                    Geiger, K. Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions.  United States.  https://doi.org/10.1103/PhysRevLett.71.3075

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                    Geiger, K. 1993.  
        "Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions".  United States.  https://doi.org/10.1103/PhysRevLett.71.3075.

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@article{osti_5539728,

  title        = {Transverse-mass [ital M][sub [perpendicular]] dependence of dilepton emission from preequilibrium and quark-gluon plasma in high energy nucleus-nucleus collisions},

  author       = {Geiger, K},

  abstractNote = {The dependence on invariant mass [ital M] and transverse momentum [ital q][sub [perpendicular]] of lepton pairs emitted by quarks during the early stage of central collisions between gold nuclei at [radical][ital s] =200[ital A] GeV is investigated within the parton cascade model. For fixed transverse mass [ital M][sub [perpendicular]] between 2 and 3 GeV, the spectrum is thermal shaped at low [ital q][sub [perpendicular]] and exhibits a power law behavior at larger [ital q][sub [perpendicular]]. A suspected [ital M][sub [perpendicular]] scaling is not observed in the calculated distribution, but the significant shape of the spectrum and the large yield from preequilibrium emission may nevertheless serve as a characteristic signal for a parton plasma formation.},

  doi          = {10.1103/PhysRevLett.71.3075},

  url          = {https://www.osti.gov/biblio/5539728},
  journal      = {Physical Review Letters; (United States)},

  issn         = {0031-9007},

  number       = ,

  volume       = 71:19,

  place        = {United States},

  year         = {Mon Nov 08 00:00:00 EST 1993},

  month        = {Mon Nov 08 00:00:00 EST 1993}

}

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https://doi.org/10.1103/PhysRevLett.71.3075

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