Yazar "Spor, S." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • [ X ]
    Öğe
    Model-independent study on the anomalous Z Z γ and Z γ γ couplings at the future muon collider
    (Springer Heidelberg, 2022) Senol, A.; Spor, S.; Gurkanli, E.; Cetinkaya, V.; Denizli, H.; Koksal, M.
    In this study, we investigate the potential of mu(-)mu(+) -> Z gamma -> v v gamma process at the future muon collider with a center-of mass energy of 3 TeV to examine the anomalous ZZ gamma and Z gamma gamma neutral triple gauge couplings defining CP-conserving CB?W/A(4) coupling and three CP-violating CBB/A(4), CBW/A(4), CWW/A(4) couplings. All signal and relevant background events are generated in MadGraph and passed through Pythia for parton showering and hadronization. Detector effects are also considered via tuned muon detector cards in Delphes. The effects of systematic uncertainties of 0%, 3% and 5% on the sensitivities are studied. The best sensitivities obtained from the process mu(-)mu(+) -> Z gamma -> v v gamma are [-6.53; 6.64]x 10(-2) TeV-4 on CP-conserving CB?W/A(4) coupling and [-2.47; 2.47] x 10(-2) TeV-4, [-8.46; 8.46] x 10(-2) TeV(-4 )and [-2.20; 2.20] x 10(-1 )TeV(-4) on CP-conserving CBB/A4, CBW/A4, CWW/A4 couplings , respectively. Our obtained results on the anomalous neutral gauge couplings set more stringent sensitivity, ranging between 5 and 15 times than the current experimental results while slightly better than the phenomenological studies at future pp colliders such as the HL-LHC, the HE-LHC and the FCC-hh, respectively. On the other hand, we can see that the bounds on the anomalous neutral gauge couplings expected to be obtained for the future e-e+ colliders such as the CLIC are roughly 2 times better than our results.
  • [ X ]
    Öğe
    Search for the anomalous ZZZ and Z Z γ gauge couplings through the process e+ e- → Z Z with unpolarized and polarized beams
    (Springer Heidelberg, 2024) Cetinkaya, V.; Spor, S.; Gurkanli, E.; Koksal, M.
    This work offers the constraints on the anomalous neutral triple gauge couplings for the process e(+)e(-)-> ZZ at the CLIC with root s=3 TeV. The realistic CLIC detector environments and their effects are considered in our analysis. The study is planned for the decays of produced Z bosons to a pair of charged leptons (electrons or muons) and neutrino pairs. The bounds on the anomalous neutral triple gauge couplings defining CP-violating C-BW/Lambda(4) coupling and three CP-conserving C-WW/Lambda(4), C-BW/Lambda(4), and C-BB/Lambda(4) couplings are obtained. Also, the effects and advantages of polarization for incoming electron beams in these calculations are investigated.
  • [ X ]
    Öğe
    Search for the anomalous ZZγ and Zγγ couplings via ννγ production at the CLIC
    (Elsevier, 2022) Spor, S.; Gurkanli, E.; Koksal, M.
    The non-Abelian gauge structure of the Standard Model implies the presence of the multi-boson self interactions. Precise measurements in experimental and theoretical studies of these interactions allow not only testing the nature of the Standard Model but also new physics contribution coming from the beyond Standard Model. These interactions can be examined using a model-independent way in effective theory approach that composes the motivation part of this study. In this paper, we examine the anomalous ZZ gamma and Z gamma gamma neutral triple gauge couplings via the process e-e+ -> Z gamma for the neutrino-antineutrino pair decay of Z boson. It has performed with both unpolarized and polarized electron beams at the Compact Linear Collider with root s = 3 TeV. The study focused on CP-conserving C-BW/(4) and CP-violating CBB/(4), CBW/(4), CWW/(4) couplings. Obtained sensitivities on the anomalous neutral triple gauge couplings with 95% Confidence Level are given with systematic uncertainties of 0%, 5% and 10% for unpolarized, -80% and 80% polarized electron beams with integrated luminosities of L-int = 5 ab(-1), L -> = 4 ab(-1) and Lint = 1 ab(-1), respectively. Comparing the latest experimental limits and related phenomenological studies, our results on the anomalous neutral gauge couplings are set more stringent sensitivity between 10-30 times of magnitude. (C)& nbsp;2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.