Physics / Fizik

Permanent URI for this collectionhttps://hdl.handle.net/11147/6

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Institution Author: search.filters.institutionAuthor.Sargın, Ozan

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Now showing 1 - 4 of 4
  • Article
    Fine-Tuned Spin-3/2 and the Hierarchy Problem
    (Hindawi Publishing Corporation, 2020) Sargın, Ozan
    In the past, Kundu et al. and Chakraborty et al. used extra scalar fields to cancel the quadratic divergences in the Higgs mass squared and they determined the mass of the required scalar field. In this work, a spin-3/2 particle has been used in the same manner to nullify the power-law divergences, and it is determined that the mass of the spin-3/2 particle resides in the ball park of the GUT scale.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Hidden Spin-3/2 Field in the Standard Model
    (Springer Verlag, 2017) Demir, Durmuş Ali; Karahan, Canan; Korutlu, Beste; Sargın, Ozan
    Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and determine its role in Higgs inflation and its potential as dark matter. We show that this spin-3/2 field has a rich linear collider phenomenology and motivates consideration of a neutrino–Higgs collider. We also show that the study of Higgs inflation, dark matter and dark energy can reveal more about the neutrino and dark sector. © 2017, The Author(s).
  • Article
    Citation - WoS: 8
    Citation - Scopus: 7
    Violation of the Holographic Principle in the Loop Quantum Gravity
    (Institute of Physics Publishing, 2016) Sargın, Ozan; Faizal, Mir
    In this paper, we analyze the holographic principle using loop quantum gravity (LQG). This will be done by using polymeric quantization for analysing Yurtsever's holographic bound on the entropy, which is obtained from local quantum field theories. As the polymeric quantization is the characteristic feature of loop quantum gravity, we will argue that this calculation will indicate the effect of loop quantum gravity on the holographic principle. Thus, we will be able to explicitly demonstrate the violation of the holographic principle in the loop quantum gravity.
  • Article
    Citation - WoS: 8
    Citation - Scopus: 8
    Tunneling in Polymer Quantization and the Quantum Zeno Effect
    (Elsevier Ltd., 2014) Demir, Durmuş Ali; Sargın, Ozan
    As an application of the polymer quantization scheme, in this work we investigate the one-dimensional quantum mechanical tunneling phenomenon from the perspective of polymer representation of a non-relativistic point particle and derive the transmission and reflection coefficients. Since any tunneling phenomenon inevitably evokes a tunneling time, we attempt an analytical calculation of tunneling times by defining an operator well suited in discrete spatial geometry. The results that we come up with hint at appearance of the Quantum Zeno Effect in polymer framework.