Solar Kaluza-Klein axion search with NEWS-G

Kaluza-Klein axions appear in theories with extra dimensions as higher mass, significantly shorter lifetime, excitations of the Peccei-Quinn axion. When produced in the Sun, they would remain gravitationally trapped in the solar system, and their decay to a pair of photons could provide an explanati...

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Veröffentlicht in:	Phys.Rev.D 2022-01, Vol.105 (1), Article 012002
Hauptverfasser:	Arnaud, Q., Balogh, L., Beaufort, C., Brossard, A., Caron, J.-F., Chapellier, M., Coquillat, J.-M., Corcoran, E. C., Crawford, S., Dastgheibi-Fard, A., Deng, Y., Dering, K., Durnford, D., Garrah, C., Gerbier, G., Giomataris, I., Giroux, G., Gorel, P., Gros, M., Gros, P., Guillaudin, O., Hoppe, E. W., Katsioulas, I., Kelly, F., Knights, P., Langrock, S., Lautridou, P., Martin, R. D., Mols, J.-P., Muraz, J.-F., Neep, T., Nikolopoulos, K., O’Brien, P., Piro, M.-C., Santos, D., Savvidis, G., Savvidis, I., Fernandez, F. A. Vazquez de Sola, Vidal, M., Ward, R., Zampaolo, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics High Energy Physics - Experiment Instrumentation and Detectors Physics
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Zusammenfassung:	Kaluza-Klein axions appear in theories with extra dimensions as higher mass, significantly shorter lifetime, excitations of the Peccei-Quinn axion. When produced in the Sun, they would remain gravitationally trapped in the solar system, and their decay to a pair of photons could provide an explanation of the solar corona heating problem. A low-density detector would discriminate such a signal from the background, by identifying the separation of the interaction point of the two photons. The NEWS-G collaboration uses large volume spherical proportional counters, gas-filled metallic spheres with a spherical anode in their centre. After observation of a single axionlike event in a 42 day long run with the SEDINE detector, a 90% C.L. upper limit of gaγγ
ISSN:	2470-0010 2470-0029
DOI:	10.1103/PhysRevD.105.012002