Xenon1T excess from electron recoils of non-relativistic Dark Matter

Buttazzo, Dario; Panci, Paolo; Teresi, Daniele; Ziegler, Robert

doi:10.1016/j.physletb.2021.136310

Cited by 19 publications

(5 citation statements)

References 49 publications

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“…The allowed parameter space, consistent 7 A calculation of the two-loop contribution to electron g − 2 was carried out in a different operator basis and then transformed to our basis in ref. [39], which result agrees with ours. 8 Ref.…”

Section: Jhep09(2021)101supporting

confidence: 93%

Challenges for an axion explanation of the muon g − 2 measurement

Buen-Abad

Fan

Reece

et al. 2021

J. High Energ. Phys.

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The discrepancy between the muon g − 2 measurement and the Standard Model prediction points to new physics around or below the weak scale. It is tantalizing to consider the loop effects of a heavy axion (in the general sense, also known as an axion-like particle) coupling to leptons and photons as an explanation for this discrepancy. We provide an updated analysis of the necessary couplings, including two-loop contributions, and find that the new physics operators point to an axion decay constant on the order of 10s of GeV. This poses major problems for such an explanation, as the axion couplings to leptons and photons must be generated at low scales. We outline some possibilities for how such couplings can arise, and find that these scenarios predict new charged matter at or below the weak scale and new scalars can mix with the Higgs boson, raising numerous phenomenological challenges. These scenarios also all predict additional contributions to the muon g−2 itself, calling the initial application of the axion effective theory into question. We conclude that there is little reason to favor an axion explanation of the muon g – 2 measurement relative to other models postulating new weak-scale matter.

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Section: Jhep09(2021)101supporting

confidence: 93%

Challenges for an axion explanation of the muon g − 2 measurement

Buen-Abad

Fan

Reece

et al. 2021

J. High Energ. Phys.

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show abstract

“…The two loop diagrams are shown in Fig. 3 and its contribution to ∆a µ is given by the follow-ing expression [38].…”

Section: B Alp Contribution To ∆Aµ At Two Loopmentioning

confidence: 99%

Axion-Like Particle Interpretation of Dark Matter and Muon $(g-2)$

Ganguly¹,

Biswarup²,

Roy³

2022

Preprint

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We investigate the dark matter (DM) phenomenology of axion-like particles (ALP) along with the ALP interpretation of muon (g − 2) in a minimal extension of the Standard Model (SM). Here we have considered flavor dependent ALP couplings with SM leptons to study the allowed region of parameter space from the muon (g − 2) measurement, taking into account all possible one and two loop diagrams. We have found that in a certain region of parameter space ALP can act as a DM, satisfying the constraint from muon (g − 2) and other experimental bounds. From our relic density calculation, we can infer that the ALP can act as a DM candidate in the mass range between 55MeV to 100MeV while satisfying muon (g − 2) observation and other experimental constraints.

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“…More examples of such light new physics models that can explain (g − 2) µ include flavor violating ALPs [132], ALPs with large couplings to photons [133][134][135], contributions due to both photonic and leptonic couplings of ALPs [136], or from ALPs coupling to a dark photon [137]. Quite generally, light new physics models explaining the (g − 2) µ anomaly are required to have a rather nontrivial flavor structure.…”

Section: Signature Missing Energy Prompt or Displaced Resonancementioning

confidence: 99%

Snowmass White Paper: New flavors and rich structures in dark sectors

Harris¹,

Schuster²,

Zupan³

2022

Preprint

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Dark matter can be part of a dark sector with non-minimal couplings to the Standard Model. Compared to many (minimal) benchmark models, such scenarios can result in significant modifications in experimental signatures and strongly impact experimental search sensitivity. In this white paper, we review several non-minimal dark sector models, including phenomenological consequences: models explaining (g − 2) µ , inelastic dark matter, strongly interacting massive particles as dark matter candidates, and axions with flavorful couplings. The present exclusions and projected experimental sensitivities on these example dark sector models illustrate the robustness of the growing dark sector experimental effort -both the broadness and the precision of existing searches -probing theoretically interesting parameter space. They also illustrate some of the unique complementarity of different experimental approaches.

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Xenon1T excess from electron recoils of non-relativistic Dark Matter

Cited by 19 publications

References 49 publications

Challenges for an axion explanation of the muon g − 2 measurement

Challenges for an axion explanation of the muon g − 2 measurement

Axion-Like Particle Interpretation of Dark Matter and Muon $(g-2)$

Snowmass White Paper: New flavors and rich structures in dark sectors

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