Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter

Molitoris, J J; Stoecker, H; Winer, B L

doi:10.1103/PhysRevC.36.220

Title: Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter

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Abstract

We study the dynamics of high energy heavy ion collisions through the Vlasov-Uehling-Uhlenbeck approach. Equilibration is observed, for central collisions. It is shown that the produced entropy, the pion multiplicity, flow angle, and transverse momentum distributions saturate at the moment of maximum compression and temperature. The effects of the nuclear equation of state and the Pauli principle are investigated. For the flow angle distribution there is a 20 deg reduction of the peak flow angle due to the Pauli principle. A stiff equation of state results in a 10--20 deg increase over the soft equation of state at all energies. The transverse momentum at projectile rapidity exhibits a peak structure as a function of impact parameter b. A 40% difference between soft and hard equation of state is observed for the peak impact parameter, i.e., for intermediate multiplicities.

Authors:: Molitoris, J J; Stoecker, H; Winer, B L

Publication Date:: Wed Jul 01 00:00:00 EDT 1987

Research Org.:: Institut fuer Theoretische Physik, J.W. Goethe Universitat, D-6000 Frankfurt am Main, Federal Republic of Germany

OSTI Identifier:: 6137916

Resource Type:: Journal Article

Journal Name:: Phys. Rev. C; (United States)

Additional Journal Information:: Journal Volume: 36:1

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; HEAVY ION REACTIONS; ENTROPY; EQUATIONS OF STATE; BINDING ENERGY; HADRONS; IMPACT PARAMETER; MOMENTUM TRANSFER; MULTIPLICITY; NUCLEAR MATTER; PARTICLE RAPIDITY; PAULI PRINCIPLE; PHASE SPACE; PIONS; SKYRME POTENTIAL; BOSONS; CHARGED-PARTICLE REACTIONS; ELEMENTARY PARTICLES; ENERGY; EQUATIONS; MATHEMATICAL SPACE; MATTER; MESONS; NUCLEAR REACTIONS; NUCLEON-NUCLEON POTENTIAL; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; POTENTIALS; PSEUDOSCALAR MESONS; SPACE; THERMODYNAMIC PROPERTIES; 653003* - Nuclear Theory- Nuclear Reactions & Scattering

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                    Molitoris, J J, Stoecker, H, and Winer, B L. Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter.  United States: N. p., 1987. 
        Web.  doi:10.1103/PhysRevC.36.220.

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                    Molitoris, J J, Stoecker, H, & Winer, B L. Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter.  United States.  https://doi.org/10.1103/PhysRevC.36.220

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                    Molitoris, J J, Stoecker, H, and Winer, B L. 1987.  
        "Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter".  United States.  https://doi.org/10.1103/PhysRevC.36.220.

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@article{osti_6137916,

  title        = {Evolution of 4. pi. observables in the Vlasov-Uehling-Uhlenbeck theory and the transverse momentum transfer as a barometer for hadronic matter},

  author       = {Molitoris, J J and Stoecker, H and Winer, B L},

  abstractNote = {We study the dynamics of high energy heavy ion collisions through the Vlasov-Uehling-Uhlenbeck approach. Equilibration is observed, for central collisions. It is shown that the produced entropy, the pion multiplicity, flow angle, and transverse momentum distributions saturate at the moment of maximum compression and temperature. The effects of the nuclear equation of state and the Pauli principle are investigated. For the flow angle distribution there is a 20 deg reduction of the peak flow angle due to the Pauli principle. A stiff equation of state results in a 10--20 deg increase over the soft equation of state at all energies. The transverse momentum at projectile rapidity exhibits a peak structure as a function of impact parameter b. A 40% difference between soft and hard equation of state is observed for the peak impact parameter, i.e., for intermediate multiplicities.},

  doi          = {10.1103/PhysRevC.36.220},

  url          = {https://www.osti.gov/biblio/6137916},
  journal      = {Phys. Rev. C; (United States)},
number       = ,

  volume       = 36:1,

  place        = {United States},

  year         = {Wed Jul 01 00:00:00 EDT 1987},

  month        = {Wed Jul 01 00:00:00 EDT 1987}

}

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