96 GeV diphoton excess in seesaw extensions of the natural NMSSM

Cao, Junjie; Jia, X.; Yue, Yuanfang; Zhou, Haijing; Zhu, Pengxuan

doi:10.1103/physrevd.101.055008

Cited by 50 publications

(22 citation statements)

References 82 publications

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“…As such, the DM physics is quite complicated and is difficult to JHEP12(2020)023 understand intuitively. This fact inspired us to study the theory from different aspects, e.g., from the features of the DM-nucleon scattering [8,14], and its capability to explain the muon anomalous magnetic momentum [53] or other anomalies at the LHC [16]. In this work, we noted that a large λ ν or Y ν can enhance the DM-nucleon scattering rate significantly, so the recent XENON-1T experiment should limit them [54].…”

Section: Introductionmentioning

confidence: 89%

“…If the sneutrino fields are decomposed into CP-even and CP-odd parts 16) the squared mass of the CP-even fields is given by 17) in the bases (φ 1 , φ 2 , φ 3 ), where…”

Section: Properties Of Sneutrino Dark Mattermentioning

confidence: 99%

“…Next, let us study two representative points, P3 and P4, of the massive h s scenario in table 2. For the former point, it is the annihilation of the Higgsino pair that is responsible JHEP12(2020)023 inverse seesaw mechanism to generate the neutrino mass in our previous studies [8,14,16], and studied the feasibility that the lightest sneutrino acts as a DM candidate. A remarkable conclusion for the theory is that experimental constraints from both the collider and DM search experiments are relaxed significantly.…”

Section: Jhep12(2020)023mentioning

confidence: 99%

“…These conclusions apply to the Next-to-Minimal Supersymmetric Standard Model (NMSSM) [10][11][12], where the sneutrinos are purely left-handed, and the neutralino DM candidate may be either bino-or singlino-dominated [13]. In this context, we revived the idea of the sneutrino DM in a series of works [8,[14][15][16]. In particular, motivated by the phenomenology of the neutrino oscillations, we extended the NMSSM with the inverse seesaw mechanism by introducing two types of gauge singlet chiral superfieldsν R andX for each generation matter, which have lepton numbers −1 and 1, respectively, and their fermion components JHEP12(2020)023 corresponded to the massive neutrinos in literatures [14].…”

Section: Introductionmentioning

confidence: 99%

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Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Cao

Pan

et al. 2020

J. High Energ. Phys.

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In the Next-to-Minimal Supersymmetric Standard Model with the inverse seesaw mechanism to generate neutrino masses, the lightest sneutrino may act as a feasible dark matter candidate in vast parameter space. In this case, the smallness of the leptonic unitarity violation and the recent XENON-1T experiment can limit the dark matter physics. In particular, they set upper bounds of the neutrino Yukawa couplings λν and Yν. We study such effects by encoding the constraints in a likelihood function and carrying out elaborated scans over the parameter space of the theory with the Nested Sampling algorithm. We show that these constraints are complementary to each other in limiting the theory, and in some cases, they are very strict. We also study the impact of the future LZ experiment on the theory.

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Section: Introductionmentioning

confidence: 89%

“…If the sneutrino fields are decomposed into CP-even and CP-odd parts 16) the squared mass of the CP-even fields is given by 17) in the bases (φ 1 , φ 2 , φ 3 ), where…”

Section: Properties Of Sneutrino Dark Mattermentioning

confidence: 99%

Section: Jhep12(2020)023mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Cao

Pan

et al. 2020

J. High Energ. Phys.

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“…Possible interpreta-tions have been discussed e.g. in the NMSSM [9,14,15], an inflation-inspired μNMSSM [16,17] and the N2HDM [10].…”

Section: Introductionmentioning

confidence: 99%

Prospects for direct searches for light Higgs bosons at the ILC with 250 GeV

2020

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The particle discovered in the Higgs boson searches at the LHC with a mass of about 125 GeV is compatible within the present uncertainties with the Higgs boson predicted in the Standard Model (SM), but it could also be identified with one of the neutral Higgs bosons in a variety of beyond the SM (BSM) theories with an extended Higgs sector. The possibility that an additional Higgs boson (or even more than one) could be lighter than the state that has been detected at 125 GeV occurs generically in many BSM models and has some support from slight excesses that were observed above the background expectations in Higgs searches at LEP and at the LHC. The couplings between additional Higgs fields and the electroweak gauge bosons in BSM theories could be probed by model-independent Higgs searches at lepton colliders. We present a generator-level extrapolation of the limits obtained at LEP to the case of a future $$e^+e^-$$ e + e - collider, both for the search where the light Higgs boson decays into a pair of bottom quarks and for the decay-mode-independent search utilising the recoil method. We find that at the ILC with a centre-of-mass energy of 250 GeV, an integrated luminosity of 500 fb$$^{-1}$$ - 1 and polarised beams, the sensitivity to a light Higgs boson with reduced couplings to gauge bosons is improved by more than an order of magnitude compared to the LEP limits and goes much beyond the projected indirect sensitivity of the HL-LHC with 3000 fb$$^{-1}$$ - 1 from the rate measurements of the detected state at 125 GeV.

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Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs Doublet Model

Belyaev,

Benbrik,

Boukidi

et al. 2024

J. High Energ. Phys.

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We suggest an explanation for and explore the consequences of the excess around 95 GeV in the di-photon and di-tau invariant mass distributions recently reported by the CMS collaboration at the Large Hadron Collider (LHC), together with the discrepancy that has long been observed at the Large Electron-Positron (LEP) collider in the $$ b\overline{b} $$ b b ¯ invariant mass. Interestingly, the most recent findings announced by the ATLAS collaboration do not contradict, or even support, these intriguing observations. Their search in the di-photon final state similarly reveals an excess of events within the same mass range, albeit with a bit lower significance, thereby corroborating and somewhat reinforcing the observations made by CMS.We demonstrate that the lightest CP-even Higgs boson in the general 2-Higgs Doublet Model (2HDM) Type-III can explain simultaneously the observed excesses at approximately 1.3 σ C.L. while satisfying up-to-date theoretical and experimental constraints. Moreover, the 2HDM Type-III predicts an excess in the $$ pp\to t\overline{t}{H}_{\textrm{SM}} $$ pp → t t ¯ H SM production channel of the 125 GeV Higgs boson, HSM. This effect is caused by a up to 12% enhancement of the HSMtt Yukawa coupling in comparison to that predicted by the Standard Model. Such an effect can be tested at the High Luminosity LHC (HL-LHC), which can either discover or exclude the scenario we suggest. This unique characteristic of the 2HDM Type-III makes this scenario with the 95 GeV resonance very attractive for further theoretical and experimental investigations at the (HL-)LHC and future colliders.

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96 GeV diphoton excess in seesaw extensions of the natural NMSSM

Cited by 50 publications

References 82 publications

Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Prospects for direct searches for light Higgs bosons at the ILC with 250 GeV

Explanation of the hints for a 95 GeV Higgs boson within a 2-Higgs Doublet Model

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