منابع مشابه
Searching for the quark-gluon plasma.
The claims for production of high energy densities and possible new states of matter in collisions of nuclei by George F. Bertsch (Science, 265 (1994) 480-481) are examined and compared with simple explanations of the data which have appeared in the literature. We point out that: Energy densities in S-S collisions are almost identical with those in p-p collisions; J/Psi Feynman x distributions ...
متن کاملThe Search for the Quark- Gluon Plasma
We provide an overview of the present understanding of the transition from hadrons to a quark-gluon plasma, its signatures, and the experimental results so far. We discuss results of numerical simulations of the lattice gauge theory and critically evaluate the various observables that have been proposed as signatures of the QCD phase transition. We place the existing data from relativistic heav...
متن کاملTowards the Quark-Gluon Plasma
We discuss recent experimental results in the field of ultra-relativistic nuclear collisions. The emerging “picture” is a collectively expanding, initially hot and dense fireball in which strangenessand low-mass di-lepton pair production are enhanced and J/Ψ production is suppressed compared to expectations from nucleon-nucleon collisions. It is argued that, taken together, these data provide c...
متن کاملsignal the quark gluon plasma ?
We first review the production and the possible chemical equilibration of strange particles at CERN-SPS energies within a microscopic hadronic transport calculation. It is shown in particular that the strange quarks are produced initially via string excitations in the primary, secondary and ternary interactions. We then further elaborate on a recent idea of antihyperon production by multi-meson...
متن کاملThe Search for the Quark Gluon Plasma
INTRODUCTION The Quark Gluon Plasma (QGP) is a state of matter where quarks and gluons exist in an unbound state rather than contained in protons, neutrons, and other particles as they do in ordinary matter. These free quarks have not existed since the first 10 microseconds after the Big Bang, after which point the temperature of the cosmic background radiation was too low to allow for such a f...
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ژورنال
عنوان ژورنال: Science
سال: 1994
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.265.5171.480