Single Higgs boson production at electron-positron colliders in gauge-Higgs unification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F23%3A00366427" target="_blank" >RIV/68407700:21670/23:00366427 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.107.075030" target="_blank" >https://doi.org/10.1103/PhysRevD.107.075030</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.107.075030" target="_blank" >10.1103/PhysRevD.107.075030</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single Higgs boson production at electron-positron colliders in gauge-Higgs unification

Popis výsledku v původním jazyce

We examine contributions to single Higgs boson production processes via Z0 and W0 bosons in the SU(3)xSO(5)xU(1) gauge-Higgs unification (GHU) model. In particular, we analyze the cross sections of three single Higgs boson production processes e^-e^+ -> Zh, e^-e^+ -> ννh, and e^-e^+ -> e^-e^+h in the SM and the GHU model. For the Higgs strahlung process e^-e^+ -> Zh, we show that for a parameter region satisfying the current experimental constraints, a maximum deviation from the SM is about up to 6% for the center-of-mass energy of the initial electron and positron sqrt{s}=250 GeV and that from the SM is about up to 20% for sqrt{s}=500 GeV, depending on the initial polarization of electron and positron. The deviation from the SM is monotonically increasing with respect to sqrt{s} for sqrt{s}<~ 1 TeV. By using the Higgs strahlung process, it is possible to explore up to the region of tens of TeV in terms of the Kaluza-Klein (KK) mass. We also show that the sign of the bulk mass of a lepton multiplet in the GHU model can be determined by examining the deviation of the left-right symmetry of the e-eþ -> Zh process from the SM. The contributions to the cross sections of the e^-e^+ -> ννh and e^-e^+ -> e^-e^+h processes via the Z' and W' bosons are relatively small compared to that for e^-e^+ -> Zh at least for sqrt{s} <= 1 TeV. As is the same as in the SM, the e^-e^+ -> ννh process gives a main contribution to the single Higgs boson production processes for sqrt{s} >~ 500 GeV, but large deviations from the SM are only observed on energy scales close to the masses of the first KK gauge bosons or higher.

Název v anglickém jazyce

Single Higgs boson production at electron-positron colliders in gauge-Higgs unification

Popis výsledku anglicky

We examine contributions to single Higgs boson production processes via Z0 and W0 bosons in the SU(3)xSO(5)xU(1) gauge-Higgs unification (GHU) model. In particular, we analyze the cross sections of three single Higgs boson production processes e^-e^+ -> Zh, e^-e^+ -> ννh, and e^-e^+ -> e^-e^+h in the SM and the GHU model. For the Higgs strahlung process e^-e^+ -> Zh, we show that for a parameter region satisfying the current experimental constraints, a maximum deviation from the SM is about up to 6% for the center-of-mass energy of the initial electron and positron sqrt{s}=250 GeV and that from the SM is about up to 20% for sqrt{s}=500 GeV, depending on the initial polarization of electron and positron. The deviation from the SM is monotonically increasing with respect to sqrt{s} for sqrt{s}<~ 1 TeV. By using the Higgs strahlung process, it is possible to explore up to the region of tens of TeV in terms of the Kaluza-Klein (KK) mass. We also show that the sign of the bulk mass of a lepton multiplet in the GHU model can be determined by examining the deviation of the left-right symmetry of the e-eþ -> Zh process from the SM. The contributions to the cross sections of the e^-e^+ -> ννh and e^-e^+ -> e^-e^+h processes via the Z' and W' bosons are relatively small compared to that for e^-e^+ -> Zh at least for sqrt{s} <= 1 TeV. As is the same as in the SM, the e^-e^+ -> ννh process gives a main contribution to the single Higgs boson production processes for sqrt{s} >~ 500 GeV, but large deviations from the SM are only observed on energy scales close to the masses of the first KK gauge bosons or higher.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

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

107

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

26

Strana od-do

1-26

Kód UT WoS článku

000983107000006

EID výsledku v databázi Scopus

2-s2.0-85153936427