Browsing by Author "Varonov, AM"

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    Associated production of charged higgs boson and heavy top quark in the left-right twin higgs model at high energye-e+ collider
    (Amer Inst Physics, 2019-01-01) Mishonov, TM; Varonov, AM; Kırca, Zerrin; KIRCA, ZERRİN; Altın, Zafer; Ün, Cem Salih; ÜN, CEM SALİH; Bursa Uludağ Üniversitesi/Fen Edebiyat Fakültesi/Fizik Bölümü.; Mishonov, TM; Varonov, AM; 0000-0002-0595-8803; N-3421-2014; AAH-8661-2021
    The left-right twin Higgs (LRTH) model is a concrete realization of the twin Higgs mechanism, which predicts the existence of a new heavy top quark (T) and charged Higgs boson (phi(+/-)). Detecting of these new particles in the LRTH model depends on free parameters (f, (f) over cap, M) which are constrained by the electroweak precision measurments. We study the associated production of a charged Higgs boson (phi(+)) and a heavy top quark (T) via e(-)e(+) -> phi(+)(T) over barb in the framework the LRTH model at root s=3000 GeV and yearly integrated luminosity of L=500 fb(-1). We find that the production cross section of the process e(-)e(+)-> phi(+)(T) over barb can reach to the level of several tens fb and a statical significance of 5 sigma can be achieved in the suitable parameter space of the LRTH model at root s=3000 GeV.
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    Determination of manganese content in some commercial manganese ores in Turkey k0-NAA standardization method using 241Am-Be isotopic neutron
    (Amer, 2019-01-01) Akkaya, Gizem; Yücel, Haluk; Budak, Mustafa Güray; Mishonov, TM; Varonov, AM; AKKAYA, GİZEM; Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü; Mishonov, TM; Varonov, AM; AAH-8784-2021
    In this study, the k(0)-NAA standardization method was applied to determine manganese concentrations in commercial manganese ores that collected different mining sites in Turkey. The samples were grinded, sieved and filled into Teflon tubes with a thickness of 1mm and then irradiated in one irradiation cell of the 37GBq M-241-Be isotopic neutron source. The activities of the irradiated manganese-ore samples were produced via Mn-55(n,gamma) Mn-56 reaction and were measured by using a n-type coaxial HPGe detector with 78.5% relative efficiency. The peak area analysis of the 846.8 keV (98.85%) and 1810.7 keV (26.9%) gamma-ray lines of 56 Mn product radionuclide were performed. Experimental data of the Au-197(n,gamma) Au-198 standard monitor reaction, the neutron flux parameters in the irradiation cell and related nuclear data were used together to determine manganese concentrations in the samples. The manganese contents in five different mining sites were found to be 2.63 +/- 0.23(%) for MH (Malatya Hekimhan), 13.78 +/- 0.98(%) for EA (Elazig-Akboga), 21.53 +/- 1.52(%) for AK (Ankara Kalecik), 34.09 +/- 2.38(%) for AB (Adiyaman Besni), 41.36 +/- 2.89(%) for AG (Adiyaman Golbasi). The results indicated that k(0)-NAA method with use of an isotopic neutron source can be successfully applied to the analysis of manganese ores.