Bhabha scattering in the gauge-Higgs unification

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F22%3A00362556" target="_blank" >RIV/68407700:21670/22:00362556 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.106.015010" target="_blank" >https://doi.org/10.1103/PhysRevD.106.015010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.106.015010" target="_blank" >10.1103/PhysRevD.106.015010</a>

Result language
angličtina
Original language name
Bhabha scattering in the gauge-Higgs unification
Original language description
We examine effects of Z' bosons in gauge-Higgs unification (GHU) models at e^+ e^-->e^+ e^- Bhabha scatterings. We evaluate differential cross sections in Bhabha scatterings including Z' bosons in two types of SO(5)xU(1)xSU(3) GHU models. We find that deviations of differential cross sections in the GHU models from those in the SM can be seen at root s=250 GeV. With 80%-longitudinally polarized electron and 30%-longitudinally polarized positron beams, the left-right asymmetries in the GHU A and B models are resolved at more than 3σ at L_{int}=250 fb^{-1}. We also show that Bhabha scattering with scattering angle less than 100 mrad can be safely used as luminosity measurements at e^+ e^- colliders since the effects of Z' bosons are well suppressed for small scattering angle. We propose a new observable which can be measured at future TeV-scale e^+ e^- linear colliders.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Engineering applications of microworld physics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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