BICEP/Keck XII: Constraints on axionlike polarization oscillations in the cosmic microwave backgroundDOI: info:10.1103/PhysRevD.103.042002v. 103042002
Bicep/Keck, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Basu Thakur, R., Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Dierickx, Marion, Duband, L., Fatigoni, S., Filippini, J. P., Fliescher, S., Goeckner-Wald, N., Grayson, J., Hall, G., Halpern, M. et al. 2021. "BICEP/Keck XII: Constraints on axionlike polarization oscillations in the cosmic microwave background." Physical Review D, 103 042002. https://doi.org/10.1103/PhysRevD.103.042002.