Zobrazeno 1 - 10
of 5 482
pro vyhledávání: '"YIN, Wen"'
Autor:
Yin, Wen
One of the simplest extensions of the Standard Model is the Higgs portal extension involving a dark Higgs. Dark sectors that include dark matter candidates, WIMPs, axions, and dark photons, can naturally have this type of interaction, where the dark
Externí odkaz:
http://arxiv.org/abs/2412.19798
Autor:
Yin, Wen
The QCD axion is widely studied as a dark matter (DM) candidate and as a solution to the strong CP problem of the Standard Model. In conventional field-theoretic models, a much larger mass scale than the electroweak (EW) scale is typically introduced
Externí odkaz:
http://arxiv.org/abs/2412.17802
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. This phenomenon can significantly alter the abundance of axions in the early
Externí odkaz:
http://arxiv.org/abs/2412.10232
Autor:
Wada, Juntaro, Yin, Wen
If a scalar field couples to the Ricci scalar with a large non-minimal coupling, the Standard Model coupling parameters can differ above and below an intermediate field range of the scalar due to the non-renormalizability. In this paper, we study, fo
Externí odkaz:
http://arxiv.org/abs/2411.00768
Autor:
Sakurai, Kodai, Yin, Wen
Recently, one of the present authors noticed a stimulated emission process of bosonic dark matter via the two-body decay of a mother particle in a thermal plasma similar to the operation principle of a laser in 2301.08735. In this paper, we show that
Externí odkaz:
http://arxiv.org/abs/2410.18968
We derive a robust bound on dark photon dark matter scenarios where the dark photon mass is generated through the Higgs mechanism, based on the requirement that symmetry breaking must occur sufficiently early in the universe. We emphasize that dark p
Externí odkaz:
http://arxiv.org/abs/2410.17964
We study topological defects in multi-axion models arising from multiple Peccei-Quinn (PQ) scalars. Using a simplified two-axion system, we reveal fundamental differences in the evolution of these defects compared to single-axion scenarios. This find
Externí odkaz:
http://arxiv.org/abs/2409.09749
Autor:
Yin, Wen, Yoshida, Junya
Axion-like particles (ALPs) are known to be produced through axion-photon conversion in the presence of a stationary external magnetic field. Devices such as undulators and wigglers, which are used widely for photon production, e.g., in synchrotron r
Externí odkaz:
http://arxiv.org/abs/2408.17451
Publikováno v:
JCAP10(2024)038
We show that heavy axion domain walls induce domain walls of the QCD axion through a mixing between the heavy axion and the QCD axion, even when the pre-inflationary initial condition is assumed for the QCD axion. The induced domain walls arise becau
Externí odkaz:
http://arxiv.org/abs/2407.09478
Autor:
Batell, Brian, Yin, Wen
Why does dark matter (DM) live longer than the age of the Universe? Here we study a novel sub-eV scalar DM candidate whose stability is due to the Pauli exclusion of its fermionic decay products. We analyze the stability of the DM condensate against
Externí odkaz:
http://arxiv.org/abs/2406.17028