Results 91 to 100 of about 41,771 (184)

Probing axions with neutron star inspirals and other stellar processes

Journal of High Energy Physics, 2018
In certain models of a QCD axion, finite density corrections to the axion potential can result in the axion being sourced by large dense objects. There are a variety of ways to test this phenomenon, but perhaps the most surprising effect is that the ...
Anson Hook, Junwu Huang
doaj   +1 more source

Revisiting the Impact of Axions in the Cooling of White Dwarfs

, 2012
It has been shown that the shape of the luminosity function of white dwarfs can be a powerful tool to check for the possible existence of DFSZ-axions. In particular, Isern et al.
Althaus, Leandro, Bertolami, Marcelo Miller, Melendez, Brenda   +2 more
core  

Detecting dilute axion stars constrained by fast radio bursts in the Solar System via stimulated decay

European Physical Journal C: Particles and Fields
Fast radio bursts (FRBs) can be explained by collapsing axion stars, imposing constraints on the axion parameter space and providing valuable guidance for experimental axion searches.
Haoran Di, Zhu Yi, Haihao Shi, Yungui Gong   +3 more
doaj   +1 more source

QCD axion dark matter from level crossing with refined adiabatic condition

Journal of High Energy Physics
We investigate the level-crossing phenomenon in two-axion systems, where the mass eigenvalues intersect as the mass of one axion increases with the cooling of the universe.
Kai Murai, Yuma Narita, Fuminobu Takahashi, Wen Yin   +3 more
doaj   +1 more source

Berry phase in axion physics, SM global structure, and generalized symmetries

Physics Letters B
We investigate the Berry phase arising from axion-photon and axion-fermion interactions. The effective Hamiltonians in both systems share the same form, enabling a unified description of the Berry phase and providing a novel perspective on axion ...
Qing-Hong Cao, Shuailiang Ge, Yandong Liu, Jun-Chen Wang   +3 more
doaj   +1 more source

Resonant Landau-Zener conversion in multi-axion systems

Journal of High Energy Physics
Multiple axions may emerge in the low-energy effective theory of Nature. Generically, the potentials describing these axion fields are non-diagonal, leading to mass mixing between axion states which can be temperature-dependent due to QCD instanton ...
David I. Dunsky, Claudio Andrea Manzari, Pablo Quílez, Maria Ramos, Philip Sørensen   +4 more
doaj   +1 more source

Search for axions in streaming dark matter

, 2017
A new search strategy for the detection of the elusive dark matter (DM) axion is proposed. The idea is based on streaming DM axions, whose flux might get temporally enormously enhanced due to gravitational lensing.
Anastassopoulos, V., Bertolucci, S., Cantatore, G., Cetin, S. A., Fischer, H., Funk, W., Gardikiotis, A., Hoffmann, D. H. H., Hofmann, S., Karuza, M., Maroudas, M., Semertzidis, Y. K., Tkatchev, I., Zioutas, K.   +13 more
core  

Axions

, 2003
9 pages, no figures, based on talks given at the workshops ``Thinking, Observing and Mining the Universe'' held in Sorrento (Italy) and at ``International Workshop on Astroparticle and High Energy Physics'' held in Valencia (Spain)
openaire   +2 more sources

The quality/cosmology tension for a post-inflation QCD axion

Journal of High Energy Physics
It is difficult to construct a post-inflation QCD axion model that solves the axion quality problem (and hence the Strong CP problem) without introducing a cosmological disaster. In a post-inflation axion model, the axion field value is randomized during
Qianshu Lu, Matthew Reece, Zhiquan Sun
doaj   +1 more source

From supernovae to neutron stars: a systematic approach to axion production at finite density

Journal of High Energy Physics
We present a systematic study of QCD axion production in environments with finite baryon density and temperature, implying significant changes to axion phenomenology.
Konstantin Springmann, Michael Stadlbauer, Stefan Stelzl, Andreas Weiler   +3 more
doaj   +1 more source