Antimatter clusters from hadronizing quark-gluon plasma Page: 1 of 19
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BNL—38477
DE86 015075
ANTIMATTER CLUSTERS FROM HADRONIZINC QUARK-GLUON PLASMA ^ J' 'iS88
Ulrich Heinz
Physics Department
Brookhaven National Laboratory
Upton, NY 11973
ABSTRACT
We employ a realistic model for the phase transition between the color
deconfining quark-gluon plasma phase and the color confining hadronic gas
phase of nuclear matter to discuss the question how quarks and antiquarks
hadronize in an expanding quark-gluon plasma. We pay particular attention
to the problem associated with the latent heat and latent entropy set free
in the hadronlzation process. Assuming a specific space-time scenario for
the phase transition, we compute relative abundances of different hadronic
particles and resonances produced during hadronlzation and show that in
particular antinucleons and light antinuclei are enhanced above their
equilibrium abundances in a hadron gas of similar density and temperature.
We interpret this enhancement as a possible signature for the existence of
a transient quark-gluon plasma phase in relativistic heavy-ion collisions
which can complement the widely discussed strangeness signal. We point out,
however, that detailed dynamical studies of the hadronlzation process are
necessary in order to definitively settle questions about the quantitative
yields.
Invited Lecture
NATO Advanced Summer Institute
PHYSICS OF STRONG FIELDS
June 1—1-4 1986
Maratea, Italy
This work was supported by the U. S. Department of Energy under contract
DE-ACD2-76CH00016.
DISTRIBUTION OF THIS EDLiiaSENT IS Vl’Ll’Vjfj
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Heinz, U. Antimatter clusters from hadronizing quark-gluon plasma, article, January 1, 1986; United States. (https://digital.library.unt.edu/ark:/67531/metadc1074284/m1/1/?rotate=90: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.