Distinguishing axion models with IAXO

Jaeckel, Joerg; Thormaehlen, Lennert J.

doi:10.1088/1475-7516/2019/03/039

Cited by 29 publications

(40 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As studied in [339], provided the signal is measured with sufficient statistics, m a values as low as 3 × 10 −3 eV could be determined by this method. Moreover, if the axion signal is composed by significant fractions of Primakoff and ABC solar axions, the combined spectral fitting can provide independent estimations of g aγ and g ae [340]. This combined determination works in areas of parameter space particularly well motivated by the stellar cooling anomalies.…”

Section: Measuring Axion Parametersmentioning

confidence: 99%

Physics potential of the International Axion Observatory (IAXO)

Armengaud

Attié

Basso

et al. 2019

J. Cosmol. Astropart. Phys.

243

272

View full text Add to dashboard Cite

We review the physics potential of a next generation search for solar axions: the International Axion Observatory (IAXO). Endowed with a sensitivity to discover axion-like particles (ALPs) with a coupling to photons as small as g aγ ∼ 10 −12 GeV −1 , or to electrons g ae ∼10 −13 , IAXO has the potential to find the QCD axion in the 1 meV∼1 eV mass range where it solves the strong CP problem, can account for the cold dark matter of the Universe and be responsible for the anomalous cooling observed in a number of stellar systems. At the same time, IAXO will have enough sensitivity to detect lower mass axions invoked to explain: 1) the origin of the anomalous "transparency" of the Universe to gamma-rays, 2) the observed soft X-ray excess from galaxy clusters or 3) some inflationary models. In addition, we review string theory axions with parameters accessible by IAXO and discuss their potential role in cosmology as Dark Matter and Dark Radiation as well as their connections to the above mentioned conundrums.

show abstract

Section: Measuring Axion Parametersmentioning

confidence: 99%

Physics potential of the International Axion Observatory (IAXO)

Armengaud

Attié

Basso

et al. 2019

J. Cosmol. Astropart. Phys.

243

272

View full text Add to dashboard Cite

show abstract

“…If the axion mass is around the meV ballpark, IAXO [115] could find the concomitant flux of solar axions but direct DM detection will be very difficult. The solar signal can be however used to pinpoint the axion mass and couplings [118,119], thus constraining the SMASH scenario and ease the search for DM. SMASH predictions for the axion-photon coupling: SMASH(u,d) (thick solid horizontal lines for hypercharge assignment of −1/3 (2/3) for Q) and gutSMASH (red).…”

Section: Dark Mattermentioning

confidence: 99%

Several Problems in Particle Physics and Cosmology Solved in One SMASH

Ballesteros

Redondo

Ringwald

et al. 2019

Front. Astron. Space Sci.

View full text Add to dashboard Cite

The Standard Model (SM) of particle physics is a big success. However, it lacks explanations for cosmic inflation, the matter-anti-matter asymmetry of the Universe, dark matter, neutrino oscillations, and the feebleness of CP violation in the strong interactions. The latter may be explained by a complex scalar field charged under a spontaneously broken global U(1) Peccei-Quinn (PQ) symmetry. Moreover, the pseudo Nambu-Goldstone boson of this breaking -the axion-may play the role of the dark matter. Furthermore, the modulus of the PQ field is a candidate for driving inflation. If additionally three extra SM singlet neutrinos (whose mass is induced by the PQ field) are included, the five aforementioned problems can be addressed at once. We review the SM extension dubbed SMASH -for SM-Axion-Seesaw-Higgs portal inflation-, discuss its predictions and tests in astrophysics, cosmology, and laboratory experiments. Variants of SMASH are also considered and commented on.

show abstract

“…Crucially, the most part of the parameter regions predicated by the stellar cooling hints will be covered by the next generation helioscope IAXO. Once axions are detected in such experiments, it would be even possible to measure the axion mass and couplings to photons and electrons if the detectors have enough energy resolution [103,104]. The predictions of Type II of the variant axion models exhibit relatively high values for the coupling product g ae g aγ (see Fig.…”

Section: Discussionmentioning

confidence: 99%

Stellar cooling anomalies and variant axion models

Saikawa

Yanagida

2020

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

A number of observations of stellar systems show a mild preference for anomalously fast cooling compared with what predicted in the standard theory, which leads to a speculation that there exists an additional energy loss mechanism originated from the emission of axions in stars. We explore the possibility that such excessive energy losses are interpreted in the framework of variant axion models, which require two Higgs doublets and flavor-dependent Peccei-Quinn charge assignments. These models resolve two fundamental issues faced in the traditional KSVZ/DFSZ models by predicting a sizable axion coupling to electrons required to explain the cooling anomalies and at the same time providing a solution to the cosmological domain wall problem. We also find that a specific structure of the axion couplings to electrons and nucleons slightly relaxes the constraint from supernova 1987A and enlarges viable parameter regions compared with the DFSZ models. It is shown that good global fits to the observational data are obtained for axion mass ranges of 1 meV m a 30 meV, and that the predicted parameter regions can be probed in the forthcoming helioscope searches. * saikawa@mpp.mpg.de † tsutomu.tyanagida@ipmu.jp

show abstract

Distinguishing axion models with IAXO

Cited by 29 publications

References 68 publications

Physics potential of the International Axion Observatory (IAXO)

Physics potential of the International Axion Observatory (IAXO)

Several Problems in Particle Physics and Cosmology Solved in One SMASH

Stellar cooling anomalies and variant axion models

Contact Info

Product

Resources

About