Yazar "Kucukarslan, Ayse" seçeneğine göre listele

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    Different Contributions of the ? ? K0 (K)over-bar0 ? Decay
    (Amer Inst Physics, 2011) Kucukarslan, Ayse; Unal, Yasemin
    The scalar mesons and vector mesons contribution to the radiative decay phi -> K-0(K) over bar (0) gamma are studied within the framework of the phenomenological approach. The branching ratio of this decay is calculated to be 10(-8) - 10(-12). Furthermore, obtained values are compared with the experimental and theoretical results existing in the literature.
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    Different Contributions of the Decay ? ? ?0?0?
    (Iop Publishing Ltd, 2012) Aciksoz, Esra; Kucukarslan, Ayse
    The radiative decay rho -> pi(0)pi(0)gamma is re-examined within the framework of a phenomenological approach in which the f(2) meson and sigma are combined with the processes involving the vector meson intermediate states and the pion-loops. In order to obtain the scalar meson contribution we consider pion-loop model and no structure model, and then compare the results obtained in two models. Furthermore, using the experimental branching ratio for the radiative decay rho -> pi(0)pi(0)gamma, we estimate the coupling constant g(rho sigma gamma) for a set of values of sigma meson parameters M-sigma and Gamma(sigma).
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    ?-? mixing in chiral perturbation theory
    (World Scientific Publ Co Pte Ltd, 2006) Kucukarslan, Ayse; Meissner, Ulf-G.
    We investigate w-phi meson mixing to leading order in chiral perturbation theory utilizing the antisymmetric tensor field formulation. We update the quark mass ratio R from P-to mixing, R = 42 +/- 4.
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    Radiative ???? Vertex in QCD Sum Rules and Phenomenological Approach
    (Amer Inst Physics, 2011) Kucukarslan, Ayse; Ozdem, Ulas; Unal, Yasemin
    We estimate the coupling constant g(phi sigma gamma)by using the three- point correlation function and we also investigate this coupling constant by studying the effective lagrangians. Here we consider the effect the phi-omega mixing effect to the calculation. Besides, a comparison of our predictions with the theoretical results existing in literature is presented.
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    Scalar Mesons in the Decay ? ? K0(K)over-bar0?
    (Iop Publishing Ltd, 2012) Unal, Yasemin; Kucukarslan, Ayse
    We estimate the branching ratio of the phi -> K-0(K) over bar (0)gamma. decay within the framework of a phenomenological approach in which the contributions of the f(0)(980), a(0)(980) scalar resonances, chiral loops and K*(892) vector meson are considered. To evaluate the contribution of the scalar resonances, we consider the kaon-loop model and the no-structure model.
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    The behavior of the strange quark matter in the FRW universes
    (World Scientific Publ Co Pte Ltd, 2007) Yilmaz, Ihsan; Kucukarslan, Ayse; Ozder, Serhat
    In this paper, we study strange quark matter for Friedman - Robertson - Walker (FRW) universes in the context of general relativity. For this purpose we consider quark - gluon plasma as a perfect fluid in the FRW universes. After solving Einstein's field equations, we have analyzed this matter for the different types of universe. Also, we discuss the features of collapsing strange quark matter.