Probing the axion–nucleon coupling with the next generation of axion helioscopes

Luzio, Luca Di; Galán, J.; Giannotti, Maurizio; Irastorza, I.G.; Jaeckel, Joerg; Lindner, A.; Ruz, J.; Schneekloth, U.; Sohl, L.; Thormaehlen, Lennert J.; Vogel, Julia K.

doi:10.1140/epjc/s10052-022-10061-1

Cited by 22 publications

(14 citation statements)

References 195 publications

(292 reference statements)

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“…It improves SNR by a factor > 10 4 and sensitivity in 𝑔 𝑎𝛾 by more than one order of magnitude [6], [8]. Furthermore, it has been recently shown that both IAXO and BabyIAXO will have the potential to detect solar axions from the 57 Fe nuclear transition at 14.4 keV [9]. Each of the relevant subsystems for BabyIAXO, namely magnet, optics and detector (Fig.…”

Section: A Fourth Generation Helioscope: Iaxo and Babyiaxomentioning

confidence: 99%

Status update of the axion helioscope BabyIAXO

Blasco¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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The International Axion Observatory (IAXO) is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs) produced in the Sun. It is conceived to reach a sensitivity on the axion-photon coupling in the range of 10 −12 GeV −1 . An intermediate experiment, BabyIAXO, is already in the construction phase. BabyIAXO will be important to test all IAXO subsystems (magnet, optics and detectors) and at the same time, as a fully-fledged helioscope, will reach a sensitivity on the axion-photon coupling of 1.5 × 10 −11 GeV −1 for masses up to 0.25 eV, covering a very interesting region of the parameter space. Important milestones have been reached in the past years in the development of the different components of the experiment. In particular for low background X-ray detectors, X-ray optics as well as for the design of the large magnet hosting two 10 m long bores with a diameter of 0.7 m for axion to photon conversion. The design of the mechanical infrastructure allowing for Sun monitoring during half of the day has been defined. We report on the recent characterization of BabyIAXO subsystems and discuss how the achieved results compare to the requirements.

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Section: A Fourth Generation Helioscope: Iaxo and Babyiaxomentioning

confidence: 99%

Status update of the axion helioscope BabyIAXO

Blasco¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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“…Most of the axion related processes allowed in the Sun's interior could be differentiated with a dedicated detection setup at IAXO, allowing to distinguish different solar components produced by different mechanisms (see Figure 3). The proper measurement of those components would lead to an independent measure of axion couplings to photons, electrons, or even nucleons [122,123], shedding light on the full theoretical description of the axion.…”

Section: An Axion Observatorymentioning

confidence: 99%

Digging into Axion Physics with (Baby)IAXO

Dafni,

Galan

2021

Preprint

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Dark Matter searches have been ongoing for three decades; the lack of a positive discovery of the main candidate, the WIMP, after dedicated efforts, has put axions and axion-like-particles in the spotlight. The three main techniques employed to search for them complement each other well in covering a wide range in the parameter space defined by the axion decay constant and the axion mass. The International AXion Observatory (IAXO) is an international collaboration planning to build the fourth generation axion helioscope, with an unparalleled expected sensitivity and discovery potential. The distinguishing characteristic of IAXO is that it will feature an axion-specific magnet, with a large axion-sensitive cross-section, and will be equipped with x-ray focusing devices and detectors that have been developed for axion physics. In this paper, we review aspects that motivate IAXO and its prototype, BabyIAXO, in the axion and ALPs landscape. As part of this Special Issue, some emphasis is given on the Spanish participation in the project, of which CAPA is a strong promoter.

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“…Introduction.-Axions were originally introduced to solve the strong CP problem [1][2][3][4][5][6]. Current constraints on axions are based on a wide range of techniques, from laboratory experiments to astrophysics [6][7][8][9][10][11][12][13][14]. Bounds on the axion parameter space are obtained using helioscopes or haloscopes [7,[15][16][17][18][19][20][21], calculating axion emission in neutron stars (NSs) [22][23][24][25], and with other astrophysical and cosmological constraints [26][27][28][29][30][31][32][33].…”

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confidence: 99%

Magnetic Dynamo Caused by Axions in Neutron Stars

Anzuini

Pons²,

Gómez-Bañón³

et al. 2023

Phys. Rev. Lett.

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The coupling between axions and photons modifies Maxwell's equations, introducing a dynamo term in the magnetic induction equation. In neutron stars, for critical values of the axion decay constant and axion mass, the magnetic dynamo mechanism increases the total magnetic energy of the star. We show that this generates substantial internal heating due to enhanced dissipation of crustal electric currents. These mechanisms would lead magnetized neutron stars to increase their magnetic energy and thermal luminosity by several orders of magnitude, in contrast to observations of thermally emitting neutron stars. To prevent the activation of the dynamo, bounds on the allowed axion parameter space can be derived.

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Probing the axion–nucleon coupling with the next generation of axion helioscopes

Cited by 22 publications

References 195 publications

Status update of the axion helioscope BabyIAXO

Status update of the axion helioscope BabyIAXO

Digging into Axion Physics with (Baby)IAXO

Magnetic Dynamo Caused by Axions in Neutron Stars

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