Microwave background constraints on mixing of photons with hidden photons

Mirizzi, Alessandro; Redondo, Javier; Sigl, G.

doi:10.1088/1475-7516/2009/03/026

Cited by 151 publications

(221 citation statements)

References 50 publications

(93 reference statements)

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“…This model of dark matter is supported by numerous astrophysical observations [36][37][38][39][40] and other experimental data related to the muon anomalous magnetic moment [41] and experimental searching for the 'dark photon' [42][43][44][45][46].…”

Section: Jhep03(2016)215supporting

confidence: 56%

P-wave holographic superconductor/insulator phase transitions affected by dark matter sector

Rogatko

Wysokiński

2016

J. High Energ. Phys.

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Abstract:The holographic approach to building the p-wave superconductors results in three different models: the Maxwell-vector, the SU(2) Yang-Mills and the helical. In the probe limit approximation, we analytically examine the properties of the first two models in the theory with dark matter sector. It turns out that the effect of dark matter on the Maxwell-vector p-wave model is the same as on the s-wave superconductor studied earlier.For the non-Abelian model we study the phase transitions between p-wave holographic insulator/superconductor and metal/superconductor. Studies of marginally stable modes in the theory under consideration allow us to determine features of p-wave holographic droplet in a constant magnetic field. The dependence of the superconducting transition temperature on the coupling constant α to the dark matter sector is affected by the dark matter density ρ D . For ρ D > ρ the transition temperature is a decreasing function of α. The critical chemical potential µ c for the quantum phase transition between insulator and metal depends on the chemical potential of dark matter µ D and for µ D = 0 is a decreasing function of α.

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Section: Jhep03(2016)215supporting

confidence: 56%

P-wave holographic superconductor/insulator phase transitions affected by dark matter sector

Rogatko

Wysokiński

2016

J. High Energ. Phys.

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“…These bounds include stellar production of the vector [51,52], precision tests of electromagnetism [29,30,53], and distortion of the CMB due to conversion of photons into the vector [54]. Since these are bounds on ε rather than ε √ ρ γ , an assumption about the vector abundance was needed in order to put the bounds on the plot.…”

Section: Dark Matter Phenomenologymentioning

confidence: 99%

Vector dark matter from inflationary fluctuations

2016

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We calculate the production of a massive vector boson by quantum fluctuations during inflation.This gives a novel dark-matter production mechanism quite distinct from misalignment or thermal production. While scalars and tensors are typically produced with a nearly scale-invariant spectrum, surprisingly the vector is produced with a power spectrum peaked at intermediate wavelengths. Thus dangerous, long-wavelength, isocurvature perturbations are suppressed. Further, at long wavelengths the vector inherits the usual adiabatic, nearly scale-invariant perturbations of the inflaton, allowing it to be a good dark matter candidate. The final abundance can be calculated precisely from the mass and the Hubble scale of inflation, HI . Saturating the dark matter abundance we find a prediction for the mass m ≈ 10 −5 eV×(10 14 GeV/HI ) 4 . High-scale inflation, potentially observable in the CMB, motivates an exciting mass range for recently proposed direct detection experiments for hidden photon dark matter. Such experiments may be able to reconstruct the distinctive, peaked power spectrum, verifying that the dark matter was produced by quantum fluctuations during inflation and providing a direct measurement of the scale of inflation. Thus a detection would not only be the discovery of dark matter, it would also provide an unexpected probe of inflation itself.

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“…But these experiments have the potential to discover hidden photons over a vast range of parameter space, extending from O(eV) down to scales as low as O(10 −18 eV). The cosmological bound on photon-dark photon oscillations for dark photon masses between 10 −14 eV and 10 −7 eV was evaluated in [102]. In this low mass range, the decay channel of dark photon to electron-positron pair is forbidden, and the decay life time of the dark photon is long enough for the dark photon itself to be a reasonable dark matter candidate.…”

Section: Direct and Indirect Search For Dark Mattermentioning

confidence: 99%

Recent Progress in Search for Dark Sector Signatures

Deliyergiyev

2016

Open Physics

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Many difficulties are encountered when attempting to pinpoint a common origin for several observed astrophysical anomalies, and when assessing their tension with existing exclusion limits. These include systematic uncertainties affecting the operation of the detectors, our knowledge of their response, astrophysical uncertainties, and the broad range of particle couplings that can mediate interaction with a detector target. Particularly interesting astrophysical evidence has motivated a search for dark-photon, and focused our attention on a Hidden Valleys model with a GeV-scale dark sector that produces exciting signatures. Results from recent underground experiments are also considered. There is a 'light' hidden sector (dark sector), present in many models of new physics beyond the Standard Model, which contains a colorful spectrum of new particles. Recently, it has been shown that this spectrum can give rise to unique signatures at colliders when the mass scale in the hidden sector is well below a TeV; as in Hidden Valleys, Stueckelberg extensions, and Unparticle models. These physics models produce unique signatures of collimated leptons at high energies. By studying these ephemeral particles we hope to trace the history of the Universe. Our present theories lead us to believe that there is something new just around the corner, which should be accessible at the energies made available by modern colliders.

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Microwave background constraints on mixing of photons with hidden photons

Cited by 151 publications

References 50 publications

P-wave holographic superconductor/insulator phase transitions affected by dark matter sector

P-wave holographic superconductor/insulator phase transitions affected by dark matter sector

Vector dark matter from inflationary fluctuations

Recent Progress in Search for Dark Sector Signatures

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