Search for new physics in energetic single photon production in e+e− annihilation at the Z resonance

Acciarri, M.; Bobbink, G. J.; Buijs, A.; Colijn, A. P.; Dierendonck, D.N. van; Duinker, P.; Erné, F.C.; Hoek, W. C. van; Kittel, W.; König, A. C.; Linde, F.L.; Mangeol, D.; Massaro, G.; Metzger, W. J.; Mil, A. J.W. van; Muijs, A. J.M.; Petersen, T. C.; Rhee, T. van; Rossum, W. van; Schotanus, D. J.; Walle, R. T. Van de

doi:10.1016/s0370-2693(97)01003-4

Cited by 81 publications

(74 citation statements)

References 35 publications

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“…The constraints are labeled as Giga Z and Tera Z for a future Z factory with λ ¼ 4π, and the LEP limit from Ref. [64] is shown. We also compare the limits from DM direct detection, indirect detection, monophoton, and monojet searches at the LHC.…”

Section: Dm Relic Abundance Indirect and Direct Searches And Collidmentioning

confidence: 99%

“…For example, when ψ and ϕ are an SUð2Þ L singlet, or they decay dominantly to a tau lepton and (or) gauge bosons, the sensitivity from Drell-Yan is very poor, even at the LHC 14 TeV with 300 fb −1 . For a monophoton at LEP, the L3 Collaboration has collected data with 137 pb −1 at the Z pole, which can limit the BR of exotic decay Z → γE down to 1.1 × 10 −6 if photon energy is greater than ∼30 GeV [64]. The OPAL Collaboration has a similar study at the Z pole but with only 40.5 pb −1 [65].…”

Section: Dm Relic Abundance Indirect and Direct Searches And Collidmentioning

confidence: 99%

“…For the E þ γ search, the strongest bound from LEP comes from the L3 Collaboration with 137 pb −1 data at the Z pole [64] as discussed in Sec. III C. It can limit the BR of exotic decay Z → γE down to 1. greater than ∼30 GeV.…”

Section: Axionlike Particlementioning

confidence: 99%

“…Recently, this topic has been addressed for some specific models [56][57][58][59][60]. Large Electron-Positron collider (LEP) has also searched for exotic Z decays into light Higgs [61,62], two light Higgs in the minimal supersymmetric Standard Model [63], photon and missing energy [64][65][66], and three photons [67]. There are also direct searches for DM particles at LEP-II via mono photon final states [68].…”

Section: Introductionmentioning

confidence: 99%

“…There are three types of signals, Z → 2γ; 3γ, and Eγ, depending on m a . In the Eγ final state where a decay outside the detector, we have set the detector length to be 6 m, and LEP limits on this final state from the L3 Collaboration [64] have been plotted. the detector effects at CEPC [4] and apply the following Gaussian smearing in our analysis:…”

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confidence: 99%

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Exposing the dark sector with future Z factories

Liu

Wang

et al. 2018

Phys. Rev. D

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We investigate the prospects of searching dark sector models via exotic Z-boson decay at future e þ e − colliders with Giga Z and Tera Z options. Four general categories of dark sector models, Higgs portal dark matter, vector-portal dark matter, inelastic dark matter, and axionlike particles, are considered. Focusing on channels motivated by the dark sector models, we carry out a model-independent study of the sensitivities of Z factories in probing exotic decays. The limits on branching ratios of the exotic Z decay are typically Oð10 −6 -10 −8.5 Þ for the Giga Z and Oð10 −7.5 -10 −11 Þ for the Tera Z, and they are compared with the projection for the high luminosity LHC. We demonstrate that future Z factories can provide its unique and leading sensitivity and highlight the complementarity with other experiments, including the indirect and direct dark matter search limits and the existing collider limits. Future Z factories will play a leading role in uncovering the hidden sector of the Universe in the future.

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Section: Dm Relic Abundance Indirect and Direct Searches And Collidmentioning

confidence: 99%

Section: Dm Relic Abundance Indirect and Direct Searches And Collidmentioning

confidence: 99%

Section: Axionlike Particlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Exposing the dark sector with future Z factories

Liu

Wang

et al. 2018

Phys. Rev. D

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References

2014

Beyond the Standard Model of Elementary Particle Physics

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Search for dark matter in association with an energetic photon in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

Aad¹,

Abbott²,

Abbott³

et al. 2021

J. High Energ. Phys.

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A search for dark matter is conducted in final states containing a photon and missing transverse momentum in proton-proton collisions at $$ \sqrt{s} $$ s = 13 TeV. The data, collected during 2015–2018 by the ATLAS experiment at the CERN LHC, correspond to an integrated luminosity of 139 fb−1. No deviations from the predictions of the Standard Model are observed and 95% confidence-level upper limits between 2.45 fb and 0.5 fb are set on the visible cross section for contributions from physics beyond the Standard Model, in different ranges of the missing transverse momentum. The results are interpreted as 95% confidence-level limits in models where weakly interacting dark-matter candidates are pair-produced via an s-channel axial-vector or vector mediator. Dark-matter candidates with masses up to 415 (580) GeV are excluded for axial-vector (vector) mediators, while the maximum excluded mass of the mediator is 1460 (1470) GeV. In addition, the results are expressed in terms of 95% confidence-level limits on the parameters of a model with an axion-like particle produced in association with a photon, and are used to constrain the coupling gaZγ of an axion-like particle to the electroweak gauge bosons.

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Search for new physics in energetic single photon production in e+e− annihilation at the Z resonance

Cited by 81 publications

References 35 publications

Exposing the dark sector with future Z factories

Exposing the dark sector with future Z factories

References

Search for dark matter in association with an energetic photon in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

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