Bhabha scattering in the gauge-Higgs unification

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Bhabha scattering in the gauge-Higgs unification

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Bhabha scattering in the gauge-Higgs unification

Popis výsledku anglicky

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.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Inženýrské aplikace fyziky mikrosvěta</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

106

Číslo periodika v rámci svazku

015010

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

"015010-1"-"015010-12"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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