Yazar "Oğul, R." seçeneğine göre listele

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    Bimodality in Multifragmentation of Finite Nuclei
    (Iop Publishing Ltd, 2006) Büyükçizmeci, N.; Oğul, R.
    Fragment production during the nuclear liquid gas phase transition is studied on the basis of the Statistical Multifragmentation Model (SMM) (Bondorf et al 1995 Phys. Rep. 257 133). By selecting partitions according to the maximum fragment charge we demonstrate 'bimodality' as an essential feature of the phase transition in finite nuclear systems. We show that the variation of entropies of these two events with excitation energy exhibits a bimodality behaviour as well.
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    Critical Temperature of Nuclear Matter and Fragment Distributions in MultifragmentatioNuclein of Finite Nuclei
    (American Physical Soc, 2002) Oğul, R.; Botvina, A. S.
    The fragment production in multifragmentation of finite nuclei is affected by the critical temperature of nuclear matter. We show that this temperature can be determined on the basis of the statistical multifragmentation model (SMM) by analyzing the evolution of fragment distributions with the excitation energy. This method can reveal a decrease of the critical temperature that, e.g., is expected for neutron-rich matter. The influence of isospin on fragment distributions is also discussed.
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    On the Quantum Nonequilibrium Theory with Density Matrices
    (Amer Inst Physics, 1996) Oğul, R.; Eren, N.
    Using density matrices we describe the time evolution of nonequilibrium states with a set of hierarchical of quantum kinetic equations. An analogous formalism to this equation is developed via the path integral method in a holomorphic representation of density matrices and related to the Green's function formalism.
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    On the Spinodal Instabilities at Subnuclear Densities
    (WORLD SCIENTIFIC PUBL CO PTE LTD, 1998) Oğul, R.
    We estimate the phase diagram for nuclear matter described by a Skyrme-Type momentum dependent interaction and compare the results with that for a potential with no momentum dependence. It is shown that the momentum dependence decreases the critical temperatures.
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    Phase Instabilities in Nuclear Matter and Droplet Formation
    (WORLD SCIENTIFIC PUBL CO PTE LTD, 2001) Oğul, R.; Atav, U.
    We have investigated droplet formation which may occur during the expansion of an excited blob of nuclear matter in the metastable region at subnuclear densitites. The free energy change accompanying the formation of a drop is calculated as a function of droplet radius for various saturation ratios.