Yazar "Sahin, Mehmet" seçeneğine göre listele

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    CONTACT INTERACTIONS AT FUTURE CIRCULAR COLLIDER BASED MUON-PROTON COLLIDERS
    (Jagiellonian Univ Press, 2022) Aydin, Gural; Gunaydin, Yusuf Oguzhan; Tarakcioglu, Mehmet Turker; Sahin, Mehmet; Sultansoy, Salesh
    Recently proposed Future Circular Collider-based muon-proton collid-ers will allow for investigating lepton-hadron interactions at the highest center-of-mass energy. In this study, we investigate the potential of these colliders for a four-fermion contact interactions search. Regarding the con-structive and destructive interferences of contact interactions, we estimated discovery, observation, and exclusion limits on the compositeness scale for the left-left, right-right, left-right, and right-left helicity structures. In this regard, we obtained compositeness scales for the left-left helicity structure at root s = 63.2 TeV FCC-based mu p collider with the 100 fb-1 integrated lu-minosity as 225.7 +/- 1.9% TeV (discovery), 269.0 +/- 2.0% TeV (observation), and 311.3 +/- 2.1% TeV (exclusion). This study's findings show that the FCC-based mu p colliders have great potential for investigating four-fermion contact interactions.
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    Öğe
    Excited quarks production at FCC and SppC pp colliders
    (World Scientific Publ Co Pte Ltd, 2019) Sahin, Mehmet; Aydin, Gural; Gunaydin, Yusuf Oguzhan
    Potential discovery, observation and exclusion limits of excited u and d quarks with gamma + jet final state are researched at the multi-TeV scale colliders, FCC and SppC in this paper. Both colliders, FCC and SppC, show that excited u and d quarks could be discovered up to 42.1 TeV and 55.2 TeV for u*, 30.3 TeV and 39.4 TeV for d* and 42.3 TeV and 55.5 TeV mass values for degenerate case (m(u)* = m(d)*), respectively. The determination of the excited quarks compositeness scale is examined, which will be up to multi-PeV level. Besides these analyses, free parameters (f(s), f and f') are scanned from around 0.1 up to 1 that show excited quark could be discovered at dozens of TeV with even coupling constants under 0.1.