Leading two-loop corrections to the Higgs boson self-couplings in models with extended scalar sectors
Leading two-loop corrections to the Higgs boson self-couplings in models with extended scalar sectors
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在具有扩展标量扇区的模型中对希格斯玻色子自耦合进行领先的双环修正
DOI:
10.1140/epjc/s10052-020-7723-2
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发表时间:
2019
影响因子:
4.4
通讯作者:
Shinya Kanemura
中科院分区:
文献类型:
--
作者:
Johannes Braathen;Shinya Kanemura
We compute the dominant two-loop corrections to the Higgs trilinear couplingand to the Higgs quartic couplingin models with extended Higgs sectors, using the effective-potential approximation. We provide in this paper all necessary details about our calculations, and present generalexpressions for derivatives of the integrals appearing in the effective potential at two loops. We also consider three particular Beyond-the-Standard-Model (BSM) scenarios – namely a typical scenario of an Inert Doublet Model (IDM), and scenarios of a Two-Higgs-Doublet Model (2HDM) and of a Higgs Singlet Model (HSM) without scalar mixing – and we include all the necessary finite counterterms to obtain (in addition toresults) on-shell scheme expressions for the corrections to the Higgs self-couplings. With these analytic results, we investigate the possible magnitude of two-loop BSM contributions to the Higgs self-couplings and the fate of the non-decoupling effects that are known to appear at one loop. We find that, at least as long as pertubative unitarity conditions are fulfilled, the size of two-loop corrections remains well below that of one-loop corrections. Typically, two-loop contributions toamount to approximately 20% of those at one loop, implying that the non-decoupling effects observed at one loop are not significantly modified, but also meaning that higher-order corrections need to be taken into account for the future perspective of precise measurements of the Higgs trilinear coupling.
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DOI:
10.22323/1.390.0051
发表时间:
2020-02
期刊:
Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020)
影响因子:
--
作者:
Johannes Braathen;S. Kanemura
通讯作者:
Johannes Braathen;S. Kanemura
DOI:
10.48550/arxiv.1902.00134
发表时间:
2019
期刊:
arXiv e-prints
影响因子:
--
作者:
Cepeda M.
通讯作者:
Cepeda M.
DOI:
10.23731/cyrm-2018-002
发表时间:
2018-12
期刊:
--
影响因子:
--
作者:
The Clic;CLICdp collaborations T.K. Charles;P. Giansiracusa;T. Lucas;R. Rassool;M. Volpi;C. Balázs-C.-Balá
通讯作者:
The Clic;CLICdp collaborations T.K. Charles;P. Giansiracusa;T. Lucas;R. Rassool;M. Volpi;C. Balázs-C.-Balá
影响因子:
5.4
作者:
C. Corianò;L. D. Rose;C. Marzo
通讯作者:
C. Marzo
DOI:
10.1016/0550-3213(92)90165-8
发表时间:
1997-10
期刊:
Nuclear Physics
影响因子:
--
作者:
C. Ford;I. Jack;D. Jones;D. Jones
通讯作者:
C. Ford;I. Jack;D. Jones;D. Jones