Results 61 to 70 of about 4,135 (229)

Constraints on ultralight axions from compact binary systems [PDF]

Physical Review D, 2019
Ultra light particles $(m_a \sim 10^{-21}eV-10^{-22}eV)$ with axion-like couplings to other particles can be candidates for fuzzy dark matter (FDM) if the axion decay constant $f_a\sim 10^{17}GeV$. If a compact star is immersed in such a low mass axionic
T. K. Poddar, S. Mohanty, S. Jana
semanticscholar   +1 more source

Probing axion-like particles coupling to gluons at the LHC

Journal of High Energy Physics, 2022
Assuming ALPs couple to gluons only, they can be produced via the pp → aj process and decay into two jets at the LHC. When the coupling parameter, C G ~ $$ {C}_{\overset{\sim }{G}} $$ /f a , is small, the lifetime of ALPs can be long enough leading to ...
Filmon Andom Ghebretinsae, Zeren Simon Wang, Kechen Wang   +2 more
doaj   +1 more source

Design and performance of the ALPS II regeneration cavity. [PDF]

Optics Express
The regeneration cavity (RC) is a critical component of the Any Light Particle Search II (ALPS II) experiment. It increases the signal from possible axions and axion-like particles in the experiment by nearly four orders of magnitude.
Todd Kozlowski, Li-Wei Wei, Aaron D. Spector, A. Hallal, Henry Fraedrich, Daniel C. Brotherton, Isabella Oceano, A. Ejlli, H. Grote, H. Hollis, K. Karan, Guido Mueller, D. Tanner, Benno Willke, Axel Lindner   +14 more
semanticscholar   +1 more source

Constraining axion and ALP dark matter from misalignment during reheating

Physical Review D, 2023
We explore the phenomenology of QCD axion and axion-like particle (ALP) dark matter production via misalignment during inflationary reheating. We investigate scenarios involving inflaton oscillating in a generic potential $\sim ϕ^n$, considering inflaton decay and annihilation for reheating.
openaire   +2 more sources

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

Lepton-flavor violating axions at MEG II

Journal of High Energy Physics, 2022
We study the sensitivity of the existing MEG data to lepton flavor violating axion-like particles produced through μ + → e + aγ and estimate the discovery potential for the upcoming MEG II experiment in this channel.
Yongsoo Jho, Simon Knapen, Diego Redigolo   +2 more
doaj   +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

The International Axion Observatory (IAXO) [PDF]

, 2011
The International Axion Observatory (IAXO) is a new generation axion helioscope aiming at a sensitivity to the axion-photon coupling of a few 10$^{12}$ GeV$^{-1}$, i.e. 1 - 1.5 orders of magnitude beyond the one currently achieved by CAST.
Avignone, F. T., Cantatore, G., Carmona, J. M., Caspi, S., Dafni, T., Davenport, M., Dudarev, A., Fanourakis, G., Ferrer-Ribas, E., Galan, J., Garcia, J. A., Geralis, T., Giomataris, I., Gninenko, S., Gomez, H., Hoffmann, D. H. H., IAXO Collaboration, Iguaz, F. J., Irastorza, I. G., Jakovcic, K., Krcmar, M., Lakic, B., Lindner, A., Luzon, G., Papaevangelou, T., Pivovaroff, M., Raffelt, G., Redondo, J., Rodriguez, A., Russenschuck, S., Ruz, J., Shilon, I., Ten Kate, H., Tomas, A., Troitsky, S., van Bibber, K., Villar, J. A., Vogel, J., Walckiers, L., Zioutas, K.   +39 more
core   +2 more sources

Axions in a highly protected gauge symmetry model [PDF]

The European Physical Journal C, 2018
We study QCD axion or cosmological axion-like particles (ALPs) in a model inspired by the recent interest in 4-dimensional clockwork models, with the global symmetry being accidentally enforced by a gauge abelian quiver with scalar bifundamental fields ...
Q. Bonnefoy, E. Dudas, S. Pokorski
semanticscholar   +1 more source