Results 31 to 40 of about 2,678 (202)

Grand Color axion

Journal of High Energy Physics, 2022
We present a model that solves the strong CP problem via an axion parametrically heavier than the standard one. Within this picture the Standard Model quarks are embedded into a larger non-abelian Grand Color group that at high scales splits into ...
Alessandro Valenti, Luca Vecchi, Ling-Xiao Xu   +2 more
doaj   +1 more source

Constraints on Axions and Axionlike Particles from Fermi Large Area Telescope Observations of Neutron Stars

, 2016
We present constraints on the nature of axions and axionlike particles (ALPs) by analyzing gamma--ray data from neutron stars using the Fermi Large Area Telescope.
Berenji, Bijan, Gaskins, Jennifer, Meyer, Manuel   +2 more
core   +1 more source

Next Generation Search for Axion and ALP Dark Matter with the International Axion Observatory

2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC), 2018
More than 80 years after the postulation of dark matter, its nature remains one of the fundamental questions in cosmology. Axions are currently one of the leading candidates for the hypothetical, non-baryonic dark matter that is expected to account for about 25% of the energy density of the Universe. Especially in the light of the Large Hadron Collider
Ruz, J., Vogel, J.K., Armengaud, E., Attie, D., Basso, S., Brun, P., Bykovskiy, N., Carmona, J.M., Castel, J.F., Cebrián, S., Civitani, M., Cogollos, C., Costa, D., Dafni, T., Derbin, A.V., Descalle, M.A., Desch, K., Döbrich, B., Dratchnev, I., Dudarev, A., Ferrer-Ribas, E., Galán, J., Galanti, G., Gascón, D., Gastaldo, L., Garrido, L., Germani, C., Ghisellini, G., Giannotti, M., Giomataris, I., Gninenko, S., Golubev, N., Graciani, R., Irastorza, I.G., Jakovčić, K., Kaminski, J., Krčmar, M., Krieger, C., Lakić, B., Lasserre, T., Laurent, P., Lomskaya, I., Unzhakov, E., Limousin, O., Lindner, A., Luzón, G., Mescia, F., Miralda-Escudé, J., Mirallas, H., Muratova, V.N., Navick, X.F., Nones, C., Notari, A., Nozik, A., Núñez, A., de Solórzano, A.Ortiz, Pantuev, V., Papaevangelou, T., Pareschi, G., Picatoste, E., Pivovaroff, M.J., Perez, K., Redondo, J., Ringwald, A., Ruiz-Chóliz, E., Salvadó, J., Schiffer, T., Schmidt, S., Schneekloth, U., Schott, M., Silva, H., Tagliaferri, G., Tavecchio, F., ten Kate, H., Tkackev, I., Troitsky, S., Vedrine, P., Weltman, A.   +77 more
openaire   +5 more sources

Solutions to axion electromagnetodynamics and new search strategies of sub-μeV axion

Journal of High Energy Physics, 2023
The Witten effect implies the electromagnetic interactions between axions and magnetic monopoles, and the quantum electromagnetodynamics (QEMD) properly describes interactions of electric charges, magnetic charges and photons.
Tong Li, Rui-Jia Zhang, Chang-Jie Dai
doaj   +1 more source

The axion-photon mixing in non-linear electrodynamic scenarios

Journal of High Energy Physics, 2022
In this contribution, we re-assess some aspects of axionic electrodynamics by coupling non-linear electromagnetic effects to axion physics. We present a number of motivations to justify the coupling of the axion to the photon in terms of a general non ...
J. M. A. Paixão, L. P. R. Ospedal, M. J. Neves, J. A. Helayël-Neto   +3 more
doaj   +1 more source

Fermi-LAT and NuSTAR as Stellar Axionscopes [PDF]

, 2017
We overview the potential of airborne X-ray and gamma-ray telescopes to probe the axion-like particles parameter space.Comment: Contributed to the 13th Patras Workshop on Axions, WIMPs and WISPs, Thessaloniki, May 15 to 19 ...
Giannotti, Maurizio
core   +1 more source

Cosmological constraints on thermal relic axions and axion-like particles

, 2011
Cosmological precision data can be used to set very strict constraints on Axions and Axion-like particles (ALPs) produced thermally in the big bang. We briefly review the known bounds and propose two new constraints for Axions and ALPs decaying in the ...
Cadamuro D, Cadamuro D, Davide Cadamuro, Hannestad S, Javier Redondo, Kolb E W   +5 more
core   +1 more source

First sensitivity limits of the ALPS TES detector

, 2014
The Any Light Particle Search II (ALPS II) requires a sensitive detection of 1064 nm photons. Thus, a low dark count rate (DC) and a high detection efficiency (DE) is needed. ALPS has set up a transition-edge sensor (TES) detector system, namely the ALPS
Dreyling-Eschweiler, Jan
core   +1 more source

Impact of Axions on the Minimum Mass of Core Collapse Supernova Progenitors [PDF]

, 2017
In this study we include axions in stellar evolution models adopting the current stringest constraints for their coupling to photons and electrons. We obtain that the minimum stellar mass of Core Collapse Supernova (CCSN) progenitors is shifted up by ...
Dominguez, Inma, Giannotti, Maurizio, Mirizzi, Alessandro, Straniero, Oscar   +3 more
core   +1 more source

The photophobic ALP

Journal of High Energy Physics, 2018
We explore models and phenomenology of a photophobic axion-like particle (ALP), an axion whose coupling to photons is maximally suppressed without fine-tuning of the underlying parameters.
Nathaniel Craig, Anson Hook, Skyler Kasko   +2 more
doaj   +1 more source