Inhomogeneous nucleation of quark-gluon plasma in high energy nuclear collisions.
نویسندگان
چکیده
We estimate the probability that a hard nucleon-nucleon collision is able to nucleate a seed of quark{gluon plasma in the surrounding hot and dense hadronic matter formed during a central collision of two large nuclei at AGS energies. The probability of producing at least one such seed is on the order of 1-100%. We investigate the in uence of quark{gluon plasma formation on the observed multiplicity distribution and nd that it may lead to noticeable structure in the form of a bump or shoulder. PACS: 12.38.Mh, 25.75.+r, 24.60.-k |||||||||||||||||||||||{ y Address after 1st of October: Niels Bohr Institute, DK-2100, Copenhagen , Denmark.
منابع مشابه
Modeling Magnetic Field in Heavy ion Collisions Using Two Different Nuclear Charge Density Distributions
By studying the properties of matter during heavy-ion collisions, a better understanding of the Quark-Gluon plasma is possible. One of the main areas of this study is the calculation of the magnetic field, particularly how the values of conductivity affects this field and how the field strength changes with proper time. In matching the theoretical calculations with results obtained in lab, two diffe...
متن کاملSignatures of Quark-Gluon Plasma Phase Transition in High-Energy Nuclear Collisions
In high-energy nuclear collisions, the new phase of the quark-gluon plasma is indicated by an anomalous increase in pressure, an excess of direct photon production, an excess of strangeness production, and an anomalous J/ψ suppression. We review these signatures and discuss how recent high-energy heavy-ion experiments at CERN are consistent with the production of the quark-gluon plasma in high-...
متن کاملColor singlet suppression of quark-gluon plasma formation.
The rate of quark-gluon plasma droplet nucleation in superheated hadronic matter is calculated within the MIT bag model. The requirements of color singletness and (to less extent) fixed momentum suppress the nucleation rate by many orders of magnitude, making thermal nucleation of quark-gluon plasma droplets unlikely in ultrarelativistic heavy-ion collisions if the transition is first order and...
متن کاملNucleation of quark-gluon plasma from hadronic matter.
The energy densities achieved during central collisions of large nuclei at Brookhaven’s AGS may be high enough to allow the formation of quark–gluon plasma. Calculations based on relativistic nucleation theory suggest that rare events, perhaps one in every 102 or 103, undergo the phase transition. Experimental ramifications may include an enhancement in the ratio of pions to baryons, a reductio...
متن کاملQuark-Gluon Plasma Freeze-Out from a Supercooled State?
We consider time-scales of first-order deconfinement or chiral-symmetry restoring phase transition in high energy heavy ion collisions at RHIC and LHC energies. Recently it was shown that the system must supercool below Tc before the nucleation of hadronic bubbles is sufficiently rapid to overcome the expansion rate. It is shown here that the expected time-scales of high energy heavy ion reacti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review. C, Nuclear physics
دوره 52 5 شماره
صفحات -
تاریخ انتشار 1995