Systematically testing singlet models for (g − 2)μ

Capdevilla, Rodolfo; Curtin, David; Kahn, Yonatan; Krnjaic, Gordan

doi:10.1007/jhep04(2022)129

Cited by 37 publications

(29 citation statements)

References 129 publications

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“…This final state, as well as the τ + τ − one, have been already studied in Refs. [50,53,67] in the context of a U (1) Lµ−Lτ model. However, the previous literature does not employ muon PDFs.…”

Section: Di-taumentioning

confidence: 99%

“…A qualitative comparison is made with Ref. [67] which derives the 95% CL limits at the HL-LHC setting up a different analysis strategy.…”

Section: Multilepton: Pp → 4µmentioning

confidence: 99%

“…Other channels at a MuC such as: µ + µ − → + − γ (where = µ, τ ), µ + µ − → ν νγ, and µ + µ − → γZ offer additional handles to pinpoint the properties of the Z boson, see Refs. [50,53,67].…”

Section: Quark-phobic Zmentioning

confidence: 99%

See 2 more Smart Citations

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Azatov,

Garosi,

Greljo

et al. 2022

Preprint

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Rare flavour-changing neutral-current transitions b → sµ + µ − probe higher energy scales than what is directly accessible at the LHC. Therefore, the presence of new physics in such transitions, as suggested by the present-day LHCb anomalies, would have a major impact on the motivation and planning of future high-energy colliders. The two most prominent options currently debated are a proton-proton collider at 100 TeV (FCC-hh) and a multi-TeV muon collider (MuC). In this work, we compare the discovery prospects at these colliders on benchmark new physics models indirectly detectable in b → sµ + µ − decays but beyond the reach of the high-p T searches at the HL-LHC. We consider a comprehensive set of scenarios: semileptonic contact interactions, Z from a gauged U (1) B 3 −Lµ and U (1) Lµ−Lτ , the scalar leptoquark S 3 , and the vector leptoquark U 1 . We find that a 3 TeV MuC has a sensitivity reach comparable to the one of the FCC-hh. However, for a heavy enough mediator, the new physics effects at a 3 TeV MuC are only observed indirectly via deviations in the highest energy bin, while the FCC-hh has a greater potential for the discovery of a resonance. Finally, to completely cover the parameter space suggested by the bsµµ anomalies, among the proposed future colliders, only a MuC of 10 TeV (or higher) can meet the challenge.

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Section: Di-taumentioning

confidence: 99%

“…A qualitative comparison is made with Ref. [67] which derives the 95% CL limits at the HL-LHC setting up a different analysis strategy.…”

Section: Multilepton: Pp → 4µmentioning

confidence: 99%

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New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Azatov,

Garosi,

Greljo

et al. 2022

Preprint

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show abstract

“…There are also abnormalities, for instance the muon g − 2 [4], which can be accounted for by the DM. However it is certainly true that the particles that have been observed can not be the DM.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the sensitivities at future Muon collider[34], the CEPC can already probing most of the parameter space. For the operators O 3(4) , the 95% sensitivity to Λ 3(4)…”

mentioning

confidence: 99%

Mono-$γ$ Production of a Vector Dark Matter at Future $e^+e^-$ Collider

Ma¹

2022

Preprint

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Associated production of a dark particle and a photon, represented as a mono-γ event, is a promising channel to probe particle contents and dynamics in the dark sector. In this paper we study properties of the mono-γ production of a vector dark matter at future e + e − colliders.The photon-like and Pauli operators, as well as triple gauge bosons interactions involving the dark matter, are considered in the framework of Effective Field Theory. We show that, comparing to the Pauli operator, the triple gauge bosons couplings are much more interesting at high energy collider.Beam polarization effects are also analyzed, and we show that the experimental sensitivities can not be enhanced significantly because of the smaller luminosity.

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Anomalous and axial Z′ contributions to g−2

Anastasopoulos

Kaneta

Kiritsis

et al. 2023

J. High Energ. Phys.

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We study the effects of an anomalous Z′ boson on the anomalous magnetic moment of the muon (g – 2), and especially the impact of its axial coupling. We mainly evaluate the negative contribution to (g – 2) of such couplings at one-loop and look at the anomalous couplings generated at two loops. We find areas of the parameter space, where the anomalous contribution becomes comparable and even dominant compared to the one-loop contribution. We show that in such cases, the cutoff of the theory is sufficiently low, so that new charged fermions can be found in the next round of collider experiments. We comment on the realization of such a context in string theory orientifolds.

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Systematically testing singlet models for (g − 2)μ

Cited by 37 publications

References 129 publications

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

New Physics in $b \to s μμ$: FCC-hh or a Muon Collider?

Mono-$γ$ Production of a Vector Dark Matter at Future $e^+e^-$ Collider

Anomalous and axial Z′ contributions to g−2

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