Suppressed flavor violation in lepton flavored dark matter from an extra dimension

Desai, Niral; Kılıç, Can; Yang, Yuan-Pao; Youn, Taewook

doi:10.1103/physrevd.101.075043

Cited by 5 publications

(5 citation statements)

References 82 publications

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“…(17) of the mFDM consist of an elastic scattering process mediated by the photon whose Feynman diagram is shown in fig. (3). For masses of mFDM in the GeV range, observations from electron scattering do not probe the parameter space of interest [53,54], even if one considers variations in the DM velocity distribution [55][56][57].…”

Section: Direct Detectionmentioning

confidence: 99%

“…Removing this condition makes larger parameter space accessible at the Direct Detection experiments. This condition can be significantly relaxed by considering a smaller flavor group SU(2) instead of SU (3). In this case, only the first two generations are considered to have non-trivial representations under the flavor group [98,99], when the flavor group is broken from SU(3) to SU (2).…”

Section: Direct Detectionmentioning

confidence: 99%

“…The sneutrino in MSSM [1] is one such popular candidate. Independent of specific BSM models, ideas of flavored DM have been in development for some time [2][3][4][5][6][7][8]. In another interesting paper, Batell et al [9].…”

Section: Introductionmentioning

confidence: 99%

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Freezing In with lepton flavored fermions

et al. 2021

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Dark, chiral fermions carrying lepton flavor quantum numbers are natural candidates for freeze-in. Small couplings with the Standard Model fermions of the order of lepton Yukawas are `automatic' in the limit of Minimal Flavor Violation. In the absence of total lepton number violating interactions, particles with certain representations under the flavor group remain absolutely stable. For masses in the GeV-TeV range, the simplest model with three flavors, leads to signals at future direct detection experiments like DARWIN. Interestingly, freeze-in with a smaller flavor group such as SU(2) is already being probed by XENON1T.

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Section: Direct Detectionmentioning

confidence: 99%

Section: Direct Detectionmentioning

confidence: 99%

See 1 more Smart Citation

Freezing In with lepton flavored fermions

et al. 2021

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show abstract

“…( 18) of the mFDM consist of an elastic scattering process mediated by the photon whose Feynman diagram is shown in fig. (3). For masses of mFDM in the GeV range, observations from electron scattering do not probe the parameter space of interest [52,53], even if one considers variations in the DM velocity distribution [54][55][56].…”

Section: A Relic Densitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Freezing In with Lepton Flavored Fermions

D'Ambrosio,

Chatterjee,

Laha

et al. 2021

Preprint

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Dark, chiral fermions carrying lepton flavor quantum numbers are natural candidates for freeze-in. Small couplings with the Standard Model fermions of the order of lepton Yukawas are 'automatic' in the limit of Minimal Flavor Violation. In the absence of total lepton number violating interactions, particles with certain representations under the flavor group remain absolutely stable. For masses in the GeV-TeV range, the simplest model with three flavors, leads to signals at future direct detection experiments like DARWIN. Interestingly, freeze-in with a smaller flavor group such as SU (2) is already being probed by XENON1T.

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Dark matter production through a non-thermal flavon portal

Cheek

Osiński

Roszkowski

et al. 2023

J. High Energ. Phys.

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The Froggatt-Nielsen (FN) mechanism provides an attractive way of generating the determined fermion mass hierarchy and quark mixing matrix elements in the Standard Model (SM). Here we extend it by coupling the FN field, the flavon, to a dark sector containing one or more dark matter particles which are produced non-thermally sequentially through flavon production. Non-thermal flavon production occurs efficiently via freeze-in and through field oscillations. We explore this in the regime of high-scale breaking Λ of the global U(1)FN group and at the reheating temperature TR ≪ Λ where the flavon remains out of equilibrium at all times. We identify phenomenologically acceptable regions of TR and the flavon mass where the relic abundance of dark matter and other cosmological constraints are satisfied. In the case of one-component dark matter we find an effective upper limit on the FN charges at high Λ, i.e. $$ {Q}_{\textrm{FN}}^{\textrm{DM}}\le 13 $$ Q FN DM ≤ 13 . In the multi-component dark sector scenario the dark matter can be the heaviest dark particle that can be effectively stable at cosmological timescales, alternatively it can be produced sequentially by decays of the heavier ones. For scenarios where dark decays occur at intermediate timescales, i.e. t ~ 0.1 − 1028 s, we find that existing searches can effectively probe interesting regions of parameter space. These searches include indirect probes on decays such as γ-ray and neutrino telescopes as well as analyses of the Cosmic Microwave Background, as well as constraints on small scale structure formation from the Lyman-α forest. We comment on the future prospects of such probes, place projected sensitivities, and discuss how this scenario could accommodate the cosmological S8 tension.

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Suppressed flavor violation in lepton flavored dark matter from an extra dimension

Cited by 5 publications

References 82 publications

Freezing In with lepton flavored fermions

Freezing In with lepton flavored fermions

Freezing In with Lepton Flavored Fermions

Dark matter production through a non-thermal flavon portal

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