Atlas of solar hidden photon emission

Redondo, Javier

doi:10.1088/1475-7516/2015/07/024

Cited by 53 publications

(61 citation statements)

References 99 publications

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“…This expression does not contain the small factor 2 which suppresses the probability of hidden photon production in Eqs. (13) and (16). The amplitude of the inverse process -conversion from hidden to visible photon -can be obtained in a similar fashion.…”

Section: Oscillations Between Visible and Hidden Photonsmentioning

confidence: 96%

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Light hidden photon production in high energy collisions

Demidov

Gninenko

Gorbunov

2019

J. High Energ. Phys.

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The visible and dark sectors of particle physics can be connected via the kinetic mixing between the ordinary (γ) and hidden photon (γ ). If the latter is light its production in high energy collisions of ordinary particles occurs via the γ − γ oscillations similarly to the neutrino processes. Generically, the experiments are insensitive to mass of the hidden photon, if it is lighter than 1 MeV, and it does not decay into e + e − -pair. Still, one can use the missing energy and scattering off the detector as signatures to search for light hidden photon. Presence of media suppresses production of the light vectors making the experiments insensitive to the entire model. In media the light hidden photon production is typically suppressed due to the dump of the γ −γ oscillations making the experiments insensitive to the entire model.We present analytic formulas for the light hidden photon production, propagation and detection valid for searches at colliders and beam-target experiments and apply them to estimate the impact on the sensitivities of NA64, FASER, MATHUSLA, SHiP, T2K, DUNE and NA62 for the background-free case.

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Section: Oscillations Between Visible and Hidden Photonsmentioning

confidence: 96%

“…In the case of inhomogeneous media the transition amplitude between visible and hidden photons to the leading order in δ is [13,14] A…”

Section: Oscillations Between Visible and Hidden Photonsmentioning

confidence: 99%

Light hidden photon production in high energy collisions

Demidov

Gninenko

Gorbunov

2019

J. High Energ. Phys.

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“…The CAST data were also interpreted in terms of other assumed axion production channels in the Sun [20][21][22] . Moreover, CAST constraints on other low-mass bosons include chameleons 23 and hidden photons 24 .…”

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confidence: 99%

New CAST limit on the axion–photon interaction

2017

Nature Phys

875

709

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Hypothetical low-mass particles, such as axions, provide a compelling explanation for the dark matter in the universe. Such particles are expected to emerge abundantly from the hot interior of stars. To test this prediction, the CERN Axion Solar Telescope (CAST) uses a 9 T refurbished Large Hadron Collider test magnet directed towards the Sun. In the strong magnetic field, solar axions can be converted to X-ray photons which can be recorded by X-ray detectors. In the 2013-2015 run, thanks to low-background detectors and a new X-ray telescope, the signal-to-noise ratio was increased by about a factor of three. Here, we report the best limit on the axion-photon coupling strength (0.66 × 10 −10 GeV −1 at 95% confidence level) set by CAST, which now reaches similar levels to the most restrictive astrophysical bounds.A dvancing the low-energy frontier is a key endeavour in the worldwide quest for particle physics beyond the standard model and in the effort to identify dark matter 1,2 . Nearly massless pseudoscalar bosons, often generically called axions, are particularly promising because they appear in many extensions of the standard model. They can be dark matter in the form of classical field oscillations that were excited in the early universe, notably by the re-alignment mechanism 3 . One particularly well motivated case is the quantum chromodynamics (QCD) axion, the eponym for all such particles. The existence of this new lowmass boson follows from the Peccei-Quinn mechanism as an explanation why QCD is perfectly time-reversal invariant within current experimental precision 3 .Axions were often termed 'invisible' because of their extremely feeble interactions, yet they are the target of a fast-growing international landscape of experiments. Numerous existing and foreseen projects assume that axions are the galactic dark matter and use a variety of techniques that are sensitive to different interaction channels and optimal in different mass ranges 4 . Independently of the dark-matter assumption, one can search for new forces mediated by these low-mass bosons 5 or the back-reaction on spinning black holes (superradiance) 6 . Stellar energy-loss arguments provide restrictive limits that can guide experimental efforts, and in some cases may even suggest new loss channels 3,7,8 .The least model-dependent search strategies use the production and detection of axions and similar particles by their generic twophoton coupling. It is given by the vertex L aγ = −(1/4) g aγ F µν F µν a = g aγ E · B a, where a is the axion field, F the electromagnetic field-strength tensor, and g aγ a coupling constant of dimension (energy) −1 . Notice that we use natural units with = c = k B = 1. This vertex enables the decay a → γ γ , the Primakoff production in stars-that is, the γ → a scattering in the Coulomb fields of charged particles in the stellar plasma-and the coherent conversion a ↔ γ in laboratory or astrophysical B-fields 9,10 .The helioscope concept, in particular, uses a dipole magnet directed at the Sun to convert axions to...

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“…in Ref. [6] devoted to the hidden photon production and propagation in the Sun. Given the above analogy with neutrino oscillations, we consider the interaction eigenstates to be more convenient for the estimate of hidden photon yield.…”

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confidence: 99%

Constraints on Hidden Photons Produced in Nuclear Reactors

2019

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New light vector particles -hidden photons -are present in many extensions of the Standard Model of particle physics. They can be produced in nuclear reactors and registered by neutrino detectors. We obtain new limits on the models with the hidden photons from an analysis of published results of the TEXONO neutrino experiment. Accounting for oscillations between the visible and hidden photons, we find that the neutrino experiments are generally insensitive to the hidden photons lighter than ∼ 0.1 eV.

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Atlas of solar hidden photon emission

Cited by 53 publications

References 99 publications

Light hidden photon production in high energy collisions

Light hidden photon production in high energy collisions

New CAST limit on the axion–photon interaction

Constraints on Hidden Photons Produced in Nuclear Reactors

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