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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 $\sim \phi^n$,…

高能物理 - 唯象学 · 物理学 2023-10-13 Yong Xu

Nearby dwarf spheroidal galaxies are ideal targets in the search for indirect dark matter (DM) signals. In this work, we analyze MUSE spectroscopic observations of a sample of five galaxies, composed of both classical and ultra-faint dwarf…

The current status and future prospects of searches for axion-like particles (ALPs) at colliders, mostly focused on the CERN LHC, are summarized. Constraints on ALPs with masses above a few GeV that couple to photons, as well as to Z or…

高能物理 - 实验 · 物理学 2021-02-25 David d'Enterria

Axionlike particles (ALPs), hypothetical particles beyond the Standard Model, are considered as promising dark matter candidates. ALPs can convert into photons and vice versa in a magnetic field via the Primakoff effect, potentially…

高能物理 - 唯象学 · 物理学 2025-10-21 Zhi-Qi Guo , Yue-Lin Sming Tsai , Lei Wu , Zi-Qing Xia

The light-by-light (LBL) scattering with initial polarized Compton backscattered photons at the CLIC, induced by axion-like particles (ALPs), is investigated. The total cross sections are calculated, assuming CP-even coupling of the…

高能物理 - 唯象学 · 物理学 2021-05-26 S. C. İnan , A. V. Kisselev

We offer a pedagogical introduction to axion-like particles (ALPs) as far as their relevance for high-energy astrophysics is concerned, from a few MeV to 1000 TeV. This review is self-contained, in such a way to be understandable even to…

高能物理 - 唯象学 · 物理学 2022-05-03 Giorgio Galanti , Marco Roncadelli

Axion-like particles (ALP) are promising candidates to comprise all the dark matter in the universe. We investigate the ALP couplings to photons and electrons via astrophysical measurements through the search for very-high-energy gamma rays…

高能天体物理现象 · 物理学 2025-01-23 Victor P. Goncalves , Emmanuel Moulin , Igor Reis , Aion Viana

We investigate the mass range and the corresponding free-streaming length scale of dark matter produced non-thermally from decay of heavy objects which can be either dominant or sub-dominant at the moment of decay. We show that the…

高能物理 - 唯象学 · 物理学 2023-09-07 Ki-Young Choi , Jinn-Ouk Gong , Junghoon Joh , Wan-Il Park , Osamu Seto

We study cross correlations between line intensity and weak lensing maps to search for axion-like particles (ALPs). Radiative decay of eV-mass ALPs can contribute to cosmic background emissions at optical and infrared wavelengths. Line…

宇宙学与河外天体物理 · 物理学 2021-05-26 Masato Shirasaki

One of the fundamental results used in observational cosmology is the distance duality relation (DDR), which relates the luminosity distance, $D_L$, with angular diameter distance, $D_A$, at a given redshift $z$. We employ the observed…

宇宙学与河外天体物理 · 物理学 2017-02-01 Prabhakar Tiwari

The cumulative emission of Axion-Like Particles (ALPs) from all past core-collapse supernovae (SNe) would lead to a diffuse flux with energies ${\mathcal O}(50)$ MeV. We use this to constrain ALPs featuring couplings to photons and to…

高能物理 - 唯象学 · 物理学 2020-12-03 Francesca Calore , Pierluca Carenza , Maurizio Giannotti , Joerg Jaeckel , Alessandro Mirizzi

The axion is a hypothetical elementary particle and a cold dark matter candidate. It could dominate potential wells of most astrophysical objects. Axions spontaneously decay into nearly monochromatic microwave photons. We present results…

天体物理学 · 物理学 2009-10-31 B. D. Blout , E. J. Daw , M. P. Decowski , Paul T. P. Ho , L. J Rosenberg , D. B. Yu

In this work, we re-analyze the Fermi-LAT observation of NGC 1275 to search for axion-like particle (ALP) effects and constrain ALP parameters. Instead of fitting the observed spectrum with ALP models, we adopt an alternative method for the…

高能天体物理现象 · 物理学 2021-09-08 Ji-Gui Cheng , Ya-Jun He , Yun-Feng Liang , Rui-Jing Lu , En-Wei Liang

Cosmic birefringence, the observed rotation of the polarization plane of the cosmic microwave background (CMB), serves as a compelling probe for parity-violating physics beyond the Standard Model. This study explores the potential of…

宇宙学与河外天体物理 · 物理学 2024-08-16 Dongdong Zhang , Elisa G. M. Ferreira , Ippei Obata , Toshiya Namikawa

Axion Like Particles (ALPs) can be produced in Gamma Ray Bursts, altering the polarization of the electromagnetic emission in these events. For the first time, we derive bounds on the axion-photon coupling from polarization measurements of…

高能物理 - 唯象学 · 物理学 2025-06-10 Boris Betancourt Kamenetskaia , Nissim Fraija , Gonzalo Herrera

We present a new exclusion bound of axion-like particle dark matter with axion-photon couplings above $\mathrm{10^{-13}}$ $\mathrm{GeV^{-1}}$ over the frequency range 4796.7--4799.5 MHz, corresponding to a narrow range of axion masses…

The hypothetical axion and axion-like particles, feebly coupled with photon, have not yet been found in any experiment. With the improvement of laser technique, much stronger but shorter quasi-static electric and magnetic fields can be…

高能物理 - 唯象学 · 物理学 2022-09-07 Shan Huang , Baifei Shen , Zhigang Bu , Xiaomei Zhang , Liangliang Ji , Shuhua Zhai

New one- and two-loop contributions to the lepton's and nucleon's EDM, which are induced by an axion-like particle dark matter background, are examined. These contributions include effects from CP-violating ALP interactions with photons,…

高能物理 - 唯象学 · 物理学 2025-09-17 Jason L. Evans , Nan Li , Junyuan Lyu

We show that an axionlike particle (ALP) naturally implements spontaneous electroweak baryogenesis through a cosmic evolution strongly tied to the electroweak phase transition (EWPT) if it feebly couples to the Higgs field while giving a…

高能物理 - 唯象学 · 物理学 2022-03-14 Sang Hui Im , Kwang Sik Jeong , Yeseong Lee

X-ray telescopes are an exceptional tool for searching for new fundamental physics. In particular, X-ray observations have already placed world-leading bounds on the interaction between photons and axion-like particles (ALPs). ALPs are…

高能物理 - 唯象学 · 物理学 2018-04-11 Francesca Day , Sven Krippendorf
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