Predicting Alignment in a Two Higgs Doublet Model

Benakli, Karim; Chen, Yifan; Lafforgue-Marmet, Gaëtan

doi:10.3390/proceedings2019013002

Cited by 4 publications

(4 citation statements)

References 49 publications

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“…The table furthermore lists some model candidates for which these search results would be useful. In particular, fermionic final states are most relevant in models with additional Higgs doublets such as the MSSM or the 2HDM, where the couplings of φ to fermions can be large even in the alignment limit where the 125 GeV Higgs boson, denoted as h 125 , has SM-like couplings [8,225,[229][230][231][232][233][234][235]. On the other hand, the highly sensitive V V final states are very important for singlet extensions, where the production rates of additional BSM Higgs boson(s) are mixingsuppressed when requiring h 125 to be approximately SMlike, see e.g.…”

Section: Recommendations For the Presentation Of Future Search Resultsmentioning

confidence: 99%

HiggsBounds-5: testing Higgs sectors in the LHC 13 TeV Era

et al. 2020

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We describe recent developments of the public computer code . In particular, these include the incorporation of LHC Higgs search results from Run 2 at a center-of-mass energy of 13 TeV, and an updated and extended framework for the theoretical input that accounts for improved Higgs cross section and branching ratio predictions and new search channels. We furthermore discuss an improved method used in to approximately reconstruct the exclusion likelihood for LHC searches for non-standard Higgs bosons decaying to $$\tau \tau $$ τ τ final states. We describe in detail the new and updated functionalities of the new version .

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Section: Recommendations For the Presentation Of Future Search Resultsmentioning

confidence: 99%

HiggsBounds-5: testing Higgs sectors in the LHC 13 TeV Era

et al. 2020

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“…It is easy to check that β = β and M 2 H 1 = 0 in the tree approximation. 12 12 Hill [33] also considered a 2HDM with the scale-invariant potential in Eq. (13).…”

Section: The Lee-pilaftsis Modelmentioning

confidence: 99%

“…However, with only a few exceptions, see Refs. [9,10,11,12], it appears that they have not addressed an important theoretical question: is Higgs alignment natural? Is there an approximate symmetry which protects it from large radiative corrections?…”

Section: The Gildener-weinberg Mechanism For Stabilizing the Higgs Ma...mentioning

confidence: 99%

Natural stabilization of the Higgs boson’s mass and alignment

Lane

Shepherd

2019

Phys. Rev. D

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Current data from the LHC indicate that the 125 GeV Higgs boson, H, is either the single Higgs of the Standard Model or, to a good approximation, an "aligned Higgs". We propose that H is the pseudo-Goldstone dilaton of Gildener and Weinberg. Models based on their mechanism of scale symmetry breaking can naturally account for the Higgs boson's low mass and aligned couplings. We conjecture that they are the only way to achieve a "Higgslike dilaton" that is actually the Higgs boson. These models further imply the existence of additional Higgs bosons in the vicinity of 200 to about 550 GeV. We illustrate our proposal in a version of the two-Higgs-doublet model of Lee and Pilaftsis. Our version of this model is consistent with published precision electroweak and collider physics data. We describe tests to confirm, or exclude, this model at Run 3 of the LHC. * lane@bu.edu † shepherd@shsu.edu arXiv:1808.07927v2 [hep-ph] 15 Dec 2018 1 We follow GW in assuming that all gauge boson and fermion masses are due to their couplings to Higgs bosons.2 Bardeen has argued that the classical scale invariance of the SM Lagrangian with the Higgs mass term set to zero eliminates the quadratic divergences in Higgs mass renormalization [16]. That appears not to be correct. In any case, as far as we know, no one has yet proposed a plausible dynamics that produces a scale-invariant SM potential or the more general V 0 (Φ) in Eqs. (3) and (13) below. Obviously, doing that would be a great advance. 3 We assume that the f ijkl satisfy positivity conditions guaranteeing that V 0 has only finite minima. Hermiticity of V 0 also constrains these couplings.

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“…The table furthermore lists some model candidates for which these search results would be useful. In particular, fermionic final states are most relevant in models with additional Higgs doublets such as the MSSM or the 2HDM, where the couplings of φ to fermions can be large even in the alignment limit where the 125 GeV Higgs boson, denoted as h 125 , has SM-like couplings [8,225,[229][230][231][232][233][234][235]. On the other hand, the highly sensitive V V final states are very important for singlet extensions, where the production rates of additional BSM Higgs boson(s) are mixing-suppressed when requiring h 125 to be approximately SM-like, see e.g.…”

Section: Recommendations For the Presentation Of Future Search Resultsmentioning

confidence: 99%

HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era

Bechtle,

Dercks,

Heinemeyer

et al. 2020

Preprint

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CS_hj_ratio[j] SM normalized inclusive hadronic cross section for single Higgs production, pp/pp → hj. This channel typically combines the gg → hj and pp/pp → b bhj channels that are given separately below. CS_gg_hj_ratio[j] SM normalized inclusive hadronic cross section for the gluon fusion process, pp/pp → gg → hj. (NEW) CS_bb_hj_ratio[j] SM normalized inclusive hadronic cross section for the b b associated Higgs production, pp/pp → b bhj. (NEW) CS_hjW_ratio[j] SM normalized inclusive hadronic cross section for Higgs production in association with a W boson, pp/pp → W hj. CS_hjZ_ratio[j] SM normalized inclusive hadronic cross section for Higgs production in association with a Z boson, pp/pp → Zhj. CS_vbf_ratio[j] SM normalized inclusive hadronic cross section for the Higgs production in vector boson fusion, pp/pp → q qhj. CS_tthj_ratio[j] SM normalized inclusive hadronic cross section for the t t associated Higgs production, pp/pp → t thj. CS_thj_tchan_ratio[j] SM normalized hadronic cross section for single top quark associated Higgs production through t-channel exchange, pp → tqhj. (NEW) CS_thj_schan_ratio[j] SM normalized hadronic cross section for single top quark associated Higgs production through s-channel exchange, pp → tbhj. (NEW) CS_tWhj_ratio[j] SM normalized hadronic cross section for Higgs production in association with a single top quark and a W boson, pp → tW hj. (NEW) CS_qq_hjZ_ratio[j] SM normalized hadronic cross section for quark-intiated Higgs production in association with a Z boson, q q → Z → Zhj. (NEW) CS_gg_hjZ_ratio[j] SM normalized hadronic cross section for gluon initiated Higgs production in association with a Z boson, gg → Zhj. (NEW) CS_hjhi[j,i] Inclusive hadronic cross section for (non-resonant) double Higgs production, pp/pp → hjhi (in pb). (NEW)

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Predicting Alignment in a Two Higgs Doublet Model

Cited by 4 publications

References 49 publications

HiggsBounds-5: testing Higgs sectors in the LHC 13 TeV Era

HiggsBounds-5: testing Higgs sectors in the LHC 13 TeV Era

Natural stabilization of the Higgs boson’s mass and alignment

HiggsBounds-5: Testing Higgs Sectors in the LHC 13 TeV Era

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