Higgs boson pair productions in the Georgi-Machacek model at the LHC

Jung Chang; Chuan Ren Chen; Cheng Wei Chiang

doi:10.1007/JHEP03(2017)137

Higgs boson pair productions in the Georgi-Machacek model at the LHC

Jung Chang
, Chuan Ren Chen
, Cheng Wei Chiang^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

Higgs bosons pair production is well known for its sensitivity to probing the sign and size of Higgs boson self coupling, providing a way to determine whether there is an extended Higgs sector. The Georgi-Machacek (GM) model extends the Standard Model (SM) with an SU(2)_L triplet scalar field that has one real and one complex components. The Higgs self coupling now has a wider range than that in the SM, with even the possibility of a sign flip. The new heavy singlet Higgs boson H₁ ⁰ can contribute to s-channel production of the hh pairs. In this work, we study non-resonant/resonant Higgs boson pair productions pp → hh and pp → H₁ ⁰ → hh, focusing exclusively on the contribution of H₁ ⁰. We show the sensitivity for Higgs boson pair production searches at the 13-TeV LHC with the luminosities of 3.2, 30 and 100 fb⁻¹.

Original language	English
Article number	137
Journal	Journal of High Energy Physics
Volume	2017
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2017)137
Publication status	Published - 2017 Mar 1

Keywords

Beyond Standard Model
Higgs Physics

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP03(2017)137

Cite this

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title = "Higgs boson pair productions in the Georgi-Machacek model at the LHC",

abstract = "Higgs bosons pair production is well known for its sensitivity to probing the sign and size of Higgs boson self coupling, providing a way to determine whether there is an extended Higgs sector. The Georgi-Machacek (GM) model extends the Standard Model (SM) with an SU(2)L triplet scalar field that has one real and one complex components. The Higgs self coupling now has a wider range than that in the SM, with even the possibility of a sign flip. The new heavy singlet Higgs boson H1 0 can contribute to s-channel production of the hh pairs. In this work, we study non-resonant/resonant Higgs boson pair productions pp → hh and pp → H1 0 → hh, focusing exclusively on the contribution of H1 0. We show the sensitivity for Higgs boson pair production searches at the 13-TeV LHC with the luminosities of 3.2, 30 and 100 fb−1.",

keywords = "Beyond Standard Model, Higgs Physics",

author = "Jung Chang and Chen, \{Chuan Ren\} and Chiang, \{Cheng Wei\}",

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year = "2017",

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doi = "10.1007/JHEP03(2017)137",

language = "English",

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T1 - Higgs boson pair productions in the Georgi-Machacek model at the LHC

AU - Chang, Jung

AU - Chen, Chuan Ren

AU - Chiang, Cheng Wei

PY - 2017/3/1

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N2 - Higgs bosons pair production is well known for its sensitivity to probing the sign and size of Higgs boson self coupling, providing a way to determine whether there is an extended Higgs sector. The Georgi-Machacek (GM) model extends the Standard Model (SM) with an SU(2)L triplet scalar field that has one real and one complex components. The Higgs self coupling now has a wider range than that in the SM, with even the possibility of a sign flip. The new heavy singlet Higgs boson H1 0 can contribute to s-channel production of the hh pairs. In this work, we study non-resonant/resonant Higgs boson pair productions pp → hh and pp → H1 0 → hh, focusing exclusively on the contribution of H1 0. We show the sensitivity for Higgs boson pair production searches at the 13-TeV LHC with the luminosities of 3.2, 30 and 100 fb−1.

AB - Higgs bosons pair production is well known for its sensitivity to probing the sign and size of Higgs boson self coupling, providing a way to determine whether there is an extended Higgs sector. The Georgi-Machacek (GM) model extends the Standard Model (SM) with an SU(2)L triplet scalar field that has one real and one complex components. The Higgs self coupling now has a wider range than that in the SM, with even the possibility of a sign flip. The new heavy singlet Higgs boson H1 0 can contribute to s-channel production of the hh pairs. In this work, we study non-resonant/resonant Higgs boson pair productions pp → hh and pp → H1 0 → hh, focusing exclusively on the contribution of H1 0. We show the sensitivity for Higgs boson pair production searches at the 13-TeV LHC with the luminosities of 3.2, 30 and 100 fb−1.

KW - Beyond Standard Model

KW - Higgs Physics

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Higgs boson pair productions in the Georgi-Machacek model at the LHC

Abstract

Keywords

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