Conceptual design of BabyIAXO, the intermediate stage towards the International Axion Observatory

A. Abeln , K. Altenmüller , S. Arguedas Cuendis , E. Armengaud (1) , D. Attié (1) , S. Aune (1) , S. Basso , L. Bergé (2) , B. Biasuzzi (1) , P.T. C. Borges de Sousa , P. Brun (1) , N. Bykovskiy , D. Calvet (1) , J.M. Carmona , J.F. Castel , S. Cebrián , V. Chernov , F.E. Christensen , M.M. Civitani , C. Cogollos , T. Dafní , A. Derbin , K. Desch , D. Díez , M. Dinter , B. Döbrich , I. Drachnev , A. Dudarev , L. Dumoulin (2) , D.D. M. Ferreira , E. Ferrer-Ribas (1) , I. Fleck , J. Galán , D. Gascón , L. Gastaldo , M. Giannotti , Y. Giomataris (1) , A. Giuliani (2) , S. Gninenko , J. Golm , N. Golubev , L. Hagge , J. Hahn , C.J. Hailey , D. Hengstler , P.L. Henriksen , T. Houdy , R. Iglesias-Marzoa , F.J. Iguaz (3) , I.G. Irastorza , C. Iñiguez , K. Jakovčić , J. Kaminski , B. Kanoute (3) , S. Karstensen , L. Kravchuk , B. Lakić , T. Lasserre (1) , P. Laurent (1) , O. Limousin (1) , A. Lindner , M. Loidl (4) , I. Lomskaya , G. López-Alegre , B. Lubsandorzhiev , K. Ludwig , G. Luzón , C. Malbrunot , C. Margalejo , A. Marin-Franch , S. Marnieros (2) , F. Marutzky , J. Mauricio , Y. Menesguen (4) , M. Mentink , S. Mertens , F. Mescia , J. Miralda-Escudé , H. Mirallas , J.P. Mols (1) , V. Muratova , X.F. Navick (1) , C. Nones (1) , A. Notari , A. Nozik , L. Obis , C. Oriol (2) , F. Orsini (3) , A. Ortiz de Solórzano , S. Oster , H.P. Pais da Silva , V. Pantuev , T. Papaevangelou (1) , G. Pareschi , K. Perez , O. Pérez , E. Picatoste , M.J. Pivovaroff , D.V. Poda (2) , J. Redondo , A. Ringwald , M. Rodrigues (4) , F. Rueda-Teruel , S. Rueda-Teruel , E. Ruiz-Choliz , J. Ruz , E.O. Saemann , J. Salvado , T. Schiffer , S. Schmidt , U. Schneekloth , M. Schott , L. Segui (1) , F. Tavecchio , H.H. J. ten Kate , I. Tkachev , S. Troitsky , D. Unger , E. Unzhakov , N. Ushakov , J.K. Vogel , D. Voronin , A. Weltman , U. Werthenbach , W. Wuensch , A. Yanes-Díaz

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
3 SSOLEIL - Synchrotron SOLEIL
4 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)

This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in the Sun, with unprecedented sensitivity. BabyIAXO is conceived to test all IAXO subsystems (magnet, optics and detectors) at a relevant scale for the final system and thus serve as prototype for IAXO, but at the same time as a fully-fledged helioscope with relevant physics reach itself, and with potential for discovery. The BabyIAXO magnet will feature two 10 m long, 70 cm diameter bores, and will host two detection lines (optics and detector) of dimensions similar to the final ones foreseen for IAXO. BabyIAXO will detect or reject solar axions or ALPs with axion-photon couplings down to g$_{aγ}$ ∼ 1.5 × 10$^{−11}$ GeV$^{−1}$, and masses up to m$_{a}$ ∼ 0.25 eV. BabyIAXO will offer additional opportunities for axion research in view of IAXO, like the development of precision x-ray detectors to identify particular spectral features in the solar axion spectrum, and the implementation of radiofrequency-cavity-based axion dark matter setups.[graphic not available: see fulltext]

Mots clés: Beyond Standard Model; Dark matter; CP violation; Other experiments; axion: solar; axion: dark matter; IAXO; optics; axion-like particles; sensitivity; detector: design

Domaines: Instrumentations et Détecteurs [physics.ins-det]; Physique des Hautes Energies - Expérience [hep-ex]

A. Abeln, K. Altenmüller, S. Arguedas Cuendis, E. Armengaud, D. Attié, et al.. Conceptual design of BabyIAXO, the intermediate stage towards the International Axion Observatory. JHEP, 2021, 05, pp.137. ⟨10.1007/JHEP05(2021)137⟩. ⟨hal-02999568⟩