Yazar "Billur, A. A." seçeneğine göre listele

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    Öğe
    Analysis of the anomalous quartic WWWW couplings at the LHeC and the FCC-he
    (Springer Heidelberg, 2021) Gurkanli, E.; Ari, V; Billur, A. A.; Koksal, M.
    The quartic gauge boson couplings that identify the strengths of the gauge boson self-interactions are exactly determined by the non-Abelian gauge nature of the Standard Model. The examination of these couplings at ep collisions with high center-of-mass energy and high integrated luminosity provides an important opportunity to test the validity of the Standard Model and the existence of new physics beyond the Standard Model. The quartic gauge boson couplings can contribute directly to multi-boson production at colliders. Therefore, we examine the potential of the process ep -> nu(e)W(+)W(-)j at the Large Hadron Electron Collider and the Future Circular Collider-hadron electron to study non-standard WWWW couplings in a model independent way by means of the effective Lagrangian approach. We present an investigation on measuring W+W- production in pure leptonic and semileptonic decay channels. In addition, we calculate the sensitivity limits at 95% Confidence Level on the anomalous fM0/Lambda(4), fM1/Lambda(4), fM7/Lambda(4), fS0/Lambda(4), fS1/Lambda(4), fT0/Lambda(4), fT1/Lambda(4) and fT2/Lambda(4) couplings obtained by dimension-8 operators through the process ep -> nu(e)W(+)W(-)j for the Large Hadron Electron Collider and the Future Circular Hadron Electron Collider's different center-of-mass energies and integrated luminosities. Our results show that with the process ep -> nu(e)W(+)W(-)j at the Large Hadron Electron Collider and the Future Circular Collider-hadron electron the sensitivity estimated on the anomalous WWWW couplings can be importantly strengthened.
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    Öğe
    Model independent study for the anomalous quartic WW γγ couplings at future electron-proton colliders
    (Elsevier, 2020) Ari, V.; Gurkanli, E.; Billur, A. A.; Koksal, M.
    The Large Hadron Electron Collider and the Future Circular Collider-hadron electron with high centerof-mass energy and luminosity allow to better understand the Standard Model and to examine new physics beyond the Standard Model in the electroweak sector. Multi-boson processes permit for a measurement of the gauge boson self-interactions of the Standard Model that can be used to determine the anomalous gauge boson couplings. For this purpose, we present a study of the process ep -> nu(e)gamma gamma j at the Large Hadron Electron Collider with center-of-mass energies of 1.30, 1.98 TeV and at the Future Circular Collider-hadron electron with center-of-mass energies of 7.07, 10 TeV to interpret the anomalous quartic WW gamma gamma gauge couplings using a model independent way in the framework of effective field theory. We obtain the sensitivity limits at 95% Confidence Level on 13 different anomalous couplings arising from dimension-8 operators. The best limit in f(Mi)/Lambda(4)(i= 0, 1, 2, 3, 4, 5, 7) parameters is obtained for fM(2)/Lambda(4)parameter while the best sensitivity derived on fTi/Lambda(4)(i= 0, 1, 2, 5, 6, 7) parameters is obtained for f(T5)/Lambda(4). In addition, this study is the first report on the anomalous quartic couplings determined by effective Lagrangians at epcolliders. (C) 2020 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 SCOAP(3).