Jaouad El Falaki

Université Ibn Zohr

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Université Ibn Zohr

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High Energy Physics

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Jaouad El Falaki has a total of 17 co-authors. Here are the top co-authors by number of shared publications:

Abdesslam Arhrib
Université Abdelmalek Essaadi FSTT B. 416 Tangier Morocco
14 shared publications
Hamza Abouabid
Moroccan School of Engineering Sciences (EMSI) LPRI 20250 Casablanca Morocco
8 shared publications
Rachid Benbrik
Cadi Ayyad University
8 shared publications
Bin Gong
Chinese Academy of Sciences
6 shared publications
Qi-Shu Yan
Chinese Academy of Sciences
6 shared publications
Wenhai Xie
Theory Division Institute of High Energy Physics Chinese Academy of Sciences 100049 Beijing China
5 shared publications

Latest Publications

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Cited by 1
- 26 March 2026
- Published by Springer Nature in Journal of High Energy Physics
One-loop QED and weak corrections to γγ → H±H∓ in the Inert Doublet Model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Qi-Shu Yan
A bstract: We present a complete one-loop analysis of charged scalar boson pair production in photon-photon collisions, γγ → H ^± H ^∓ , within the framework of the Inert Doublet Model (IDM). The calculation is carried out in the on-shell renormalization scheme and incorporates both weak corrections and QED effects, including soft and hard photon radiation. Virtual loop contributions and real emission processes are computed using the Feynman diagrammatic method, ensuring the cancellation of ultraviolet and infrared divergences. To properly account for the Coulomb singularity that arises in the QED sector near threshold, we introduce the resummed cross section based on the Sommerfeld factor. The IDM parameter space is explored under theoretical consistency conditions, collider limits, and dark matter constraints, and three representative scenarios are studied in detail. We find that the magnitude of the quantum corrections is strongly controlled by the absolute value of the trilinear scalar coupling $$ {\lambda}_{h^0{H}^{+}{H}^{-}} $$ $λ_{h^{0} H^{+} H^{-}}$ , which correlates with the charged scalar mass. When all constraints are applied, the weak corrections are typically in the range of −12% to −7% at $$ \sqrt{s}=250 $$ $\sqrt{s} = 250$ GeV, and between −15% and 6% at $$ \sqrt{s}=500 $$ $\sqrt{s} = 500$ GeV. At higher energies, such as $$ \sqrt{s}=1 $$ $\sqrt{s} = 1$ TeV, the corrections can become very large, ranging from about −20% up to +60%. Our findings highlight the significant role of higher-order effects in photon-photon collisions and establish γγ → H ^± H ^∓ as a promising process to investigate the charged scalar sector of the IDM at future high-energy photon colliders. Several benchmark points are proposed to facilitate future experimental searches.
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- 26 March 2026
- Published by Springer Nature in Journal of High Energy Physics
Open Access
One-loop QED and weak corrections to γγ → H±H∓ in the Inert Doublet Model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Qi-Shu Yan
A bstract: We present a complete one-loop analysis of charged scalar boson pair production in photon-photon collisions, γγ → H ^± H ^∓ , within the framework of the Inert Doublet Model (IDM). The calculation is carried out in the on-shell renormalization scheme and incorporates both weak corrections and QED effects, including soft and hard photon radiation. Virtual loop contributions and real emission processes are computed using the Feynman diagrammatic method, ensuring the cancellation of ultraviolet and infrared divergences. To properly account for the Coulomb singularity that arises in the QED sector near threshold, we introduce the resummed cross section based on the Sommerfeld factor. The IDM parameter space is explored under theoretical consistency conditions, collider limits, and dark matter constraints, and three representative scenarios are studied in detail. We find that the magnitude of the quantum corrections is strongly controlled by the absolute value of the trilinear scalar coupling $$ {\lambda}_{h^0{H}^{+}{H}^{-}} $$ $λ_{h^{0} H^{+} H^{-}}$ , which correlates with the charged scalar mass. When all constraints are applied, the weak corrections are typically in the range of −12% to −7% at $$ \sqrt{s}=250 $$ $\sqrt{s} = 250$ GeV, and between −15% and 6% at $$ \sqrt{s}=500 $$ $\sqrt{s} = 500$ GeV. At higher energies, such as $$ \sqrt{s}=1 $$ $\sqrt{s} = 1$ TeV, the corrections can become very large, ranging from about −20% up to +60%. Our findings highlight the significant role of higher-order effects in photon-photon collisions and establish γγ → H ^± H ^∓ as a promising process to investigate the charged scalar sector of the IDM at future high-energy photon colliders. Several benchmark points are proposed to facilitate future experimental searches.
Cited by 1
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Cited by 22
- 6 June 2024
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
The oblique parameters in the 2HDM with vector-like quarks: confronting M _W CDF-II anomaly
by Hamza Abouabid, Abdesslam Arhrib, Rachid Benbrik, Mohammed Boukidi, Jaouad El Falaki
The CDF collaboration has released a new measurement of the W boson mass using their complete data set with 8.8 fb⁻¹ in p p ¯ collisions. This result deviates from the Standard Model prediction by around 7σ. We explain how the two Higgs doublet model (2HDM) with vector-like quarks (VLQs) is affected by the recently discovered W boson mass. In our study, we include both theoretical constraints such as perturbative unitarity and vacuum stability as well as a number of experimental constraints. We also look into how the effective mixing angle, measured by the SLD collaboration in addition to the CDF W-boson mass, is used to determine the S and T parameters. In the alignment limit, we investigate the case where the lighter CP-even neutral Higgs boson of the 2HDM is the one found at the LHC and demonstrate how the parameter space of the 2HDM type II in the presence of VLQs is constrained. It is found that in most cases, there is a cancellation between the 2HDM and VLQs contributions, which enlarges the parameter space of both models.
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- 6 June 2024
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
Open Access
The oblique parameters in the 2HDM with vector-like quarks: confronting M _W CDF-II anomaly
by Hamza Abouabid, Abdesslam Arhrib, Rachid Benbrik, Mohammed Boukidi, Jaouad El Falaki
The CDF collaboration has released a new measurement of the W boson mass using their complete data set with 8.8 fb⁻¹ in p p ¯ collisions. This result deviates from the Standard Model prediction by around 7σ. We explain how the two Higgs doublet model (2HDM) with vector-like quarks (VLQs) is affected by the recently discovered W boson mass. In our study, we include both theoretical constraints such as perturbative unitarity and vacuum stability as well as a number of experimental constraints. We also look into how the effective mixing angle, measured by the SLD collaboration in addition to the CDF W-boson mass, is used to determine the S and T parameters. In the alignment limit, we investigate the case where the lighter CP-even neutral Higgs boson of the 2HDM is the one found at the LHC and demonstrate how the parameter space of the 2HDM type II in the presence of VLQs is constrained. It is found that in most cases, there is a cancellation between the 2HDM and VLQs contributions, which enlarges the parameter space of both models.
Cited by 22
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- 17 April 2024
- Published by arXiv in arXiv
The oblique parameters in the 2HDM with Vector-Like Quarks: Confronting $M_W$ CDF-II Anomaly
by Hamza Abouabid, Abdesslam Arhrib, Rachid Benbrik, Mohammed Boukidi, Jaouad El Falaki
The CDF collaboration has released a new measurement of the $W$ boson mass using their complete data set with 8.8 fb$^{-1}$ in $p\bar{p}$ collisions. This result deviates from the Standard Model prediction by around 7$σ$. We explain how the two Higgs doublet model (2HDM) with vector-like quarks is affected by the recently discovered W boson mass. In our study, we include both theoretical constraints such as perturbative unitarity and vacuum stability as well as a number of experimental constraints. We also look into how the effective mixing angle, measured by the SLD collaboration in addition to the CDF W-boson mass, is used to determine the $S$ and $T$ parameters. In the alignment limit, we investigate the case where the lighter CP-even neutral Higgs boson of the 2HDM is the one found at the LHC and demonstrate how the parameter space of the 2HDM type II in the presence of vector-like quarks is constrained. It is found that in most cases, there is a cancellation between the 2HDM and vector-like quarks contributions, which enlarges the parameter space of both models.
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- 17 April 2024
- Published by arXiv in arXiv
Open Access
The oblique parameters in the 2HDM with Vector-Like Quarks: Confronting $M_W$ CDF-II Anomaly
by Hamza Abouabid, Abdesslam Arhrib, Rachid Benbrik, Mohammed Boukidi, Jaouad El Falaki
The CDF collaboration has released a new measurement of the $W$ boson mass using their complete data set with 8.8 fb$^{-1}$ in $p\bar{p}$ collisions. This result deviates from the Standard Model prediction by around 7$σ$. We explain how the two Higgs doublet model (2HDM) with vector-like quarks is affected by the recently discovered W boson mass. In our study, we include both theoretical constraints such as perturbative unitarity and vacuum stability as well as a number of experimental constraints. We also look into how the effective mixing angle, measured by the SLD collaboration in addition to the CDF W-boson mass, is used to determine the $S$ and $T$ parameters. In the alignment limit, we investigate the case where the lighter CP-even neutral Higgs boson of the 2HDM is the one found at the LHC and demonstrate how the parameter space of the 2HDM type II in the presence of vector-like quarks is constrained. It is found that in most cases, there is a cancellation between the 2HDM and vector-like quarks contributions, which enlarges the parameter space of both models.
Open Access
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- 21 January 2024
- Published by arXiv in arXiv
Full one-loop radiative corrections to $e^+ e^-\to H^+H^-$ in the inert doublet model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
We compute the full one-loop radiative corrections for charged scalar pair production $e^{+}e^{-}\to H^{+}H^{-}$ in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling $\lambda_{h^0 H^+ H^-}$, which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for $\sqrt{s}=250$ GeV and $\sqrt{s}=500$ GeV, the weak corrections are around $-6\% \sim-5\%$ and $-10\% \sim -3\%$, respectively. While for $\sqrt{s}=1000$ GeV, the weak corrections can reach $-15\% \sim +25\%$. The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.
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- 21 January 2024
- Published by arXiv in arXiv
Open Access
Full one-loop radiative corrections to $e^+ e^-\to H^+H^-$ in the inert doublet model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
We compute the full one-loop radiative corrections for charged scalar pair production $e^{+}e^{-}\to H^{+}H^{-}$ in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling $\lambda_{h^0 H^+ H^-}$, which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for $\sqrt{s}=250$ GeV and $\sqrt{s}=500$ GeV, the weak corrections are around $-6\% \sim-5\%$ and $-10\% \sim -3\%$, respectively. While for $\sqrt{s}=1000$ GeV, the weak corrections can reach $-15\% \sim +25\%$. The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.
Open Access
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Cited by 7
- 10 January 2024
- Published by American Physical Society (APS) in Physical Review D
Full one-loop radiative corrections to $e^{+} e^{-} \to H^{+} H^{-}$ in the inert doublet model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
We compute the full one-loop radiative corrections for charged scalar pair production $e^{+} e^{-} \to H^{+} H^{-}$ in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling $λ_{h^{0} H^{+} H^{-}}$ , which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for $\sqrt{s} = 250 GeV$ and $\sqrt{s} = 500 GeV$ , the weak corrections are around $- 6 % \sim - 5 %$ and $- 10 % \sim - 3 %$ , respectively. While for $\sqrt{s} = 1000 GeV$ , the weak corrections can reach $- 15 % \sim + 25 %$ . The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.
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- 10 January 2024
- Published by American Physical Society (APS) in Physical Review D
Open Access
Full one-loop radiative corrections to $e^{+} e^{-} \to H^{+} H^{-}$ in the inert doublet model
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
We compute the full one-loop radiative corrections for charged scalar pair production $e^{+} e^{-} \to H^{+} H^{-}$ in the inert doublet model. The on-shell renormalization scheme has been used. We take into account both the weak contributions as well as the soft and hard QED corrections. We compute both the real emission and the one-loop virtual corrections using the Feynman diagrammatic method. The resummed cross section is introduced to cure the Coulomb singularity which occurs in the QED corrections. We have analyzed the parameter space of the inert doublet model in three scenarios after taking into account theoretical constraints, the collider experimental bounds, and dark matter search bounds as well. It is found that the weak interaction dominates the radiative corrections, and its size is determined by the triple Higgs coupling $λ_{h^{0} H^{+} H^{-}}$ , which is further connected to the mass of the charged scalar. In the scenario where all the constraints are taken into account, we find that for $\sqrt{s} = 250 GeV$ and $\sqrt{s} = 500 GeV$ , the weak corrections are around $- 6 % \sim - 5 %$ and $- 10 % \sim - 3 %$ , respectively. While for $\sqrt{s} = 1000 GeV$ , the weak corrections can reach $- 15 % \sim + 25 %$ . The new feature is that the weak corrections can be positive near the threshold when the charged scalar is heavier than 470 GeV. Six benchmark points for future collider searches have been proposed.
Cited by 7
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- 9 April 2023
- Published by arXiv in arXiv
Revisiting one-loop corrections to the trilinear Higgs boson self-coupling in the Inert Doublet Model
by Jaouad El Falaki
We investigate predictions of the trilinear Higgs self-coupling with radiative corrections in the context of the Inert Doublet Model. The triple Higgs vertex is computed at the one-loop level based on the on-shell renormalization scheme. We calculate its possible deviation from the predictions within the standard model, taking into account all relevant theoretical and experimental constraints, including dark matter searches and the latest bounds on the branching fraction of the Higgs boson decaying to invisible particles. By scanning the model's parameter space, we find that the deviation in the triple Higgs boson self-coupling from standard model expectations can be substantial, exceeding 100\% in certain regions of the parameter space.
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- 9 April 2023
- Published by arXiv in arXiv
Open Access
Revisiting one-loop corrections to the trilinear Higgs boson self-coupling in the Inert Doublet Model
by Jaouad El Falaki
We investigate predictions of the trilinear Higgs self-coupling with radiative corrections in the context of the Inert Doublet Model. The triple Higgs vertex is computed at the one-loop level based on the on-shell renormalization scheme. We calculate its possible deviation from the predictions within the standard model, taking into account all relevant theoretical and experimental constraints, including dark matter searches and the latest bounds on the branching fraction of the Higgs boson decaying to invisible particles. By scanning the model's parameter space, we find that the deviation in the triple Higgs boson self-coupling from standard model expectations can be substantial, exceeding 100\% in certain regions of the parameter space.
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Cited by 21
- 30 March 2023
- Published by Elsevier in Physics Letters B
Revisiting one-loop corrections to the trilinear Higgs boson self-coupling in the inert doublet model
by Jaouad El Falaki
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- 30 March 2023
- Published by Elsevier in Physics Letters B
Open Access
Revisiting one-loop corrections to the trilinear Higgs boson self-coupling in the inert doublet model
by Jaouad El Falaki
Cited by 21
Open Access
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- 27 March 2023
- Published by Sissa Medialab Srl
Pair charged Higgs productions at NLO in e+ e- collider within the Inert Doublet model .
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
In this contribution, we investigate the complete electroweak one-loop radiative correction to the $e^+e^-\to H^+H^-$ within the Inert Higgs Doublet Model (IHDM), at the future Higgs factory such as the ILC, CLIC and CEPC. After taking account of the theoretical and experimental constraints such as LEP, LHC and Dark matter constraints, the calculations are performed using FeynArts/FormCalc (FA/FC) to evaluate the one-loop weak corrections and using Feynman Diagram Calculation (FDC) to compute the QED contribution to the Next-Leading-Order (NLO) cross section, in three energies of collisions 250, 500 and 1000 GeV. By observing the $e^+e^-\to H^+H^-$ process, the detection of the new physics of IHDM can be directly done due to the large production rate and the corrections are significant.
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- 27 March 2023
- Published by Sissa Medialab Srl
Open Access
Pair charged Higgs productions at NLO in e+ e- collider within the Inert Doublet model .
by Hamza Abouabid, Abdesslam Arhrib, Jaouad El Falaki, Bin Gong, Wenhai Xie, Qi-Shu Yan
In this contribution, we investigate the complete electroweak one-loop radiative correction to the $e^+e^-\to H^+H^-$ within the Inert Higgs Doublet Model (IHDM), at the future Higgs factory such as the ILC, CLIC and CEPC. After taking account of the theoretical and experimental constraints such as LEP, LHC and Dark matter constraints, the calculations are performed using FeynArts/FormCalc (FA/FC) to evaluate the one-loop weak corrections and using Feynman Diagram Calculation (FDC) to compute the QED contribution to the Next-Leading-Order (NLO) cross section, in three energies of collisions 250, 500 and 1000 GeV. By observing the $e^+e^-\to H^+H^-$ process, the detection of the new physics of IHDM can be directly done due to the large production rate and the corrections are significant.
Open Access
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Cited by 1
- 13 September 2022
- Published by arXiv in arXiv
Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
by Hamza Abouabid, Abdesslam Arhrib, Duarte Azevedo, Jaouad El Falaki, Pedro. M. Ferreira, Margarete Muhlleitner, Rui Santos
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal Supersymmetric extension of the Standard Model. We take into account all relevant theoretical and experimental constraints, in particular the experimental limits on non-resonant and resonant Higgs pair production. We present the allowed cross sections for Standard Model (SM)-like Higgs pair production and the ranges of the SM-like Yukawa and trilinear Higgs self-coupling that are still compatible with the applied constraints. Furthermore, we give results for the pair production of a SM-like with a non-SM-like Higgs boson and for the production of a pair of non-SM-like Higgs bosons. We find that di-Higgs production in the models under investigation can exceed the SM rate substantially, not only in the non-resonance region but also due to resonant enhancement. We give several benchmarks with interesting features such as large cross sections, the possibility to test CP violation, Higgs-to-Higgs cascade decays or di-Higgs production beating single Higgs production. In all of our benchmark points, the next-to-leading order QCD corrections are included in the large top-mass limit. For these points, we found that, depending on the model and the Higgs pair final state, the corrections increase the leading order cross section by a factor of 1.79 to 2.24. We also discuss the relation between the description of Higgs pair production in an effective field theory approach and in the specific models investigated here.
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- 13 September 2022
- Published by arXiv in arXiv
Open Access
Benchmarking Di-Higgs Production in Various Extended Higgs Sector Models
by Hamza Abouabid, Abdesslam Arhrib, Duarte Azevedo, Jaouad El Falaki, Pedro. M. Ferreira, Margarete Muhlleitner, Rui Santos
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal Supersymmetric extension of the Standard Model. We take into account all relevant theoretical and experimental constraints, in particular the experimental limits on non-resonant and resonant Higgs pair production. We present the allowed cross sections for Standard Model (SM)-like Higgs pair production and the ranges of the SM-like Yukawa and trilinear Higgs self-coupling that are still compatible with the applied constraints. Furthermore, we give results for the pair production of a SM-like with a non-SM-like Higgs boson and for the production of a pair of non-SM-like Higgs bosons. We find that di-Higgs production in the models under investigation can exceed the SM rate substantially, not only in the non-resonance region but also due to resonant enhancement. We give several benchmarks with interesting features such as large cross sections, the possibility to test CP violation, Higgs-to-Higgs cascade decays or di-Higgs production beating single Higgs production. In all of our benchmark points, the next-to-leading order QCD corrections are included in the large top-mass limit. For these points, we found that, depending on the model and the Higgs pair final state, the corrections increase the leading order cross section by a factor of 1.79 to 2.24. We also discuss the relation between the description of Higgs pair production in an effective field theory approach and in the specific models investigated here.
Cited by 1
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Cited by 103
- 1 September 2022
- Published by Springer Nature in Journal of High Energy Physics
Benchmarking di-Higgs production in various extended Higgs sector models
by Hamza Abouabid, Abdesslam Arhrib, Duarte Azevedo, Jaouad El Falaki, Pedro M. Ferreira, Margarete Mühlleitner, Rui Santos
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal Supersymmetric extension of the Standard Model. We take into account all relevant theoretical and experimental constraints, in particular the experimental limits on non-resonant and resonant Higgs pair production. We present the allowed cross sections for Standard Model (SM)-like Higgs pair production and the ranges of the SM-like Yukawa and trilinear Higgs self-coupling that are still compatible with the applied constraints. Furthermore, we give results for the pair production of a SM-like with a non-SM-like Higgs boson and for the production of a pair of non-SM-like Higgs bosons. We find that di-Higgs production in the models under investigation can exceed the SM rate substantially, not only in the non-resonance region but also due to resonant enhancement. We give several benchmarks with interesting features such as large cross sections, the possibility to test CP violation, Higgs-to-Higgs cascade decays or di-Higgs production beating single Higgs production. In all of our benchmark points, the next-to-leading order QCD corrections are included in the large top-mass limit. For these points, we found that, depending on the model and the Higgs pair final state, the corrections increase the leading order cross section by a factor of 1.79 to 2.24. We also discuss the relation between the description of Higgs pair production in an effective field theory approach and in the specific models investigated here.
Website
Google Scholar
- 1 September 2022
- Published by Springer Nature in Journal of High Energy Physics
Open Access
Benchmarking di-Higgs production in various extended Higgs sector models
by Hamza Abouabid, Abdesslam Arhrib, Duarte Azevedo, Jaouad El Falaki, Pedro M. Ferreira, Margarete Mühlleitner, Rui Santos
We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal Supersymmetric extension of the Standard Model. We take into account all relevant theoretical and experimental constraints, in particular the experimental limits on non-resonant and resonant Higgs pair production. We present the allowed cross sections for Standard Model (SM)-like Higgs pair production and the ranges of the SM-like Yukawa and trilinear Higgs self-coupling that are still compatible with the applied constraints. Furthermore, we give results for the pair production of a SM-like with a non-SM-like Higgs boson and for the production of a pair of non-SM-like Higgs bosons. We find that di-Higgs production in the models under investigation can exceed the SM rate substantially, not only in the non-resonance region but also due to resonant enhancement. We give several benchmarks with interesting features such as large cross sections, the possibility to test CP violation, Higgs-to-Higgs cascade decays or di-Higgs production beating single Higgs production. In all of our benchmark points, the next-to-leading order QCD corrections are included in the large top-mass limit. For these points, we found that, depending on the model and the Higgs pair final state, the corrections increase the leading order cross section by a factor of 1.79 to 2.24. We also discuss the relation between the description of Higgs pair production in an effective field theory approach and in the specific models investigated here.
Cited by 103

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