| Item type |
会議発表論文 / Conference Paper(1) |
| 公開日 |
2022-08-18 |
| タイトル |
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タイトル |
Next-to-leading-order corrections to the Higgs strahlung process from electron–positron collisions in extended Higgs models |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_5794 |
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資源タイプ |
conference paper |
| 著者 |
AIKO, Masashi
KANEMURA, Shinya
MAWATARI, Kentarou
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| 著者(機関) |
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Department of Physics, Osaka University |
| 著者(機関) |
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Department of Physics, Osaka University |
| 著者(機関) |
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Faculty of Education, Iwate University |
| 登録日 |
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日付 |
2022-08-18 |
| 書誌情報 |
European Physical Journal C
巻 81,
号 11,
p. 1000,
発行日 2021-11-13
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
14346044 |
| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
We present the cross section for e⁺e⁻→hZ with arbitrary sets of electron and Z boson polarizations at the full next-to-leading order in various extended Higgs models, such as the Higgs singlet model (HSM), the inert doublet model (IDM) and the two Higgs doublet model (2HDM). We systematically perform complete one-loop calculations to the helicity amplitudes in the on-shell renormalization scheme, and present the full analytic results as well as numerical evaluations. The deviation ΔRhZ in the total cross section from its standard model (SM) prediction is comprehensively analyzed, and the differences among these models are discussed in details. We find that new physics effects appearing in the renormalized hZZ vertex almost govern the behavior of ΔRhZ, and it takes a negative value in most cases. The possible size of ΔRhZ reaches several percent under the theoretical and experimental bounds. We also analyze the deviation ΔRhZXY in the total cross section times decay branching ratios of the discovered Higgs boson by utilizing the H-COUP program. It is found that the four types of 2HDMs can be discriminated by analyzing the correlation between ΔRhZττ and ΔRhZbb and those between ΔRhZττ and ΔRhZcc. Furthermore, the HSM and the IDM can be discriminated from the 2HDMs by measuring ΔRhZWW. These signatures can be tested by precision measurements at future Higgs factories such as the International Linear Collider. |
| 抄録（URL） |
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Next-to-leading-order corrections to the Higgs strahlung process from electron–positron collisions in extended Higgs models |
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https://link.springer.com/article/10.1140/epjc/s10052-021-09764-8 |
| 出版者 |
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出版者 |
Springer Science and Business Media Deutschland GmbH |
| 権利 |
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|
権利情報 |
© 2021 The Author(s) |
| 権利URI |
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権利情報 |
http://creativecommons.org/licenses/by/4.0/ |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
info:doi/10.1140/epjc/s10052-021-09764-8 |
| 著者版フラグ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
epjc-v81n11p1000 (2.6 MB)
