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Related papers: Accelerating the search for Axion-Like Particles w…

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Axion Like Particles (ALPs) are one promising kind of dark matter candidate particles that are predicted to couple with photons in the presence of magnetic fields. The oscillations between photons and ALPs travelling in the magnetic fields…

High Energy Astrophysical Phenomena · Physics 2019-11-06 Jia Bu , Ya-Ping Li

Axion-like particles (ALPs) can couple to photons in strong magnetic fields, producing characteristic fluctuations in X-ray spectra. Using data from NASA's Neutron Star Interior Composition Explorer (NICER), we analyzed three pulsars: PSR…

High Energy Astrophysical Phenomena · Physics 2026-02-10 Yen-Jhen Liu , Yi Yang

It has been recently claimed by two different groups that the spectral modulation observed in gamma rays from Galactic pulsars and supernova remnants can be due to conversion of photons into ultra-light axion-like-particles (ALPs) in…

We propose an experiment for detecting Axion-Like Particles (ALPs) based on the axion-photon interaction in the presence of a non-uniform magnetic field. The impact of virtual ALPs on the polarization of the photons inside a cavity is…

High Energy Physics - Phenomenology · Physics 2022-06-22 Moslem Zarei , Soroush Shakeri , Mohammad Sharifian , Mehdi Abdi , David J. E. Marsh , Sabino Matarrese

We give an overview of collider searches for Axion-like particles (ALPs). The intention of this review is to give a pedagogical introduction to collider phenomenology of ALPs, and provide a starting point for newcomers, including suitable…

High Energy Physics - Phenomenology · Physics 2025-08-28 Anke Biekötter , Ken Mimasu

In this paper we outline an experiment to detect the conversion of photons to axion-like particles (ALPs) in a strong magnetic field. We show that by modulating the polarization of the light passing through a Fabry-Perot cavity so that it…

High Energy Physics - Phenomenology · Physics 2022-04-13 Richard Creswick , Frank T. Avignone

Axion-like particles (ALPs), hypothetical pseudoscalar particles that couple to photons, are among the most actively investigated candidates for new physics beyond the Standard Model. Their interaction with gamma rays in the presence of…

High Energy Astrophysical Phenomena · Physics 2026-01-15 Pooja Bhattacharjee , Christopher Eckner , Gabrijela Zaharijas , Gert Kluge , Giacomo D'Amico

We study the discovery potential of axion-like particles (ALP), pseudo-scalars weakly coupled to Standard Model fields, at the Large Hadron Collider (LHC). Our focus is on ALPs coupled to the electromagnetic field, which would induce…

High Energy Physics - Phenomenology · Physics 2019-06-20 C. Baldenegro , S. Hassani , C. Royon , L. Schoeffel

Axion-Like Particles (ALPs) are predicted by several Beyond the Standard Model theories, in particular, string theory. In the presence of an external magnetic field perpendicular to the direction of propagation, ALPs can couple to photons.…

High Energy Astrophysical Phenomena · Physics 2022-01-05 Júlia Sisk Reynés , James H. Matthews , Christopher S. Reynolds , Helen R. Russell , Robyn N. Smith , M. C. David Marsh

Axion-like particles (ALPs) are predicted by many extensions of the Standard Model (SM). When ALP mass lies in the range of MeV to GeV, the cosmology and astrophysics will be largely irrelevant. In this work, we investigate such light ALPs…

High Energy Physics - Phenomenology · Physics 2021-12-01 Daohan Wang , Lei Wu , Jin Min Yang , Mengchao Zhang

Limits on spin-0 axion-like-particles (ALPs) coupling to photons are reinterpreted as constraints on massive spin-2 graviton-like-particles (GLPs) with universal coupling $\alpha_\text{G}/M_\text{P}$ (where $M_\text{P}$ is the reduced…

High Energy Physics - Phenomenology · Physics 2026-05-05 Jordan Gué , David d'Enterria

Axion-like particles (ALPs) provide a promising direction in the search for new physics, while a wide range of models incorporate ALPs. We point out that future neutrino experiments, such as DUNE, possess competitive sensitivity to ALP…

High Energy Physics - Phenomenology · Physics 2021-05-19 Vedran Brdar , Bhaskar Dutta , Wooyoung Jang , Doojin Kim , Ian M. Shoemaker , Zahra Tabrizi , Adrian Thompson , Jaehoon Yu

Coupling of axion-like particles (ALPs) to photons in the presence of background magnetic field affects propagation of gamma-rays through magnetized environments. This results in modification in the gamma-ray spectra of sources in or behind…

High Energy Astrophysical Phenomena · Physics 2018-05-14 D. Malyshev , A. Neronov , D. Semikoz , A. Santangelo , J. Jochum

We perform a linear mode analysis of a uniformly distributed cloud of axion-like particles (ALPs) embedded in a magnetized intergalactic medium, in order to investigate the stability of axion stars under realistic astrophysical conditions.…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-14 Kuldeep J. Purohit , Jitesh R. Bhatt , Subhendra Mohanty , Prashant K. Mehta

Quiescent hard X-ray and soft gamma-ray emission from neutron stars constitute a promising frontier to explore axion-like-particles (ALPs). ALP production in the core peaks at energies of a few keV to a few hundreds of keV; subsequently,…

High Energy Physics - Phenomenology · Physics 2021-07-19 Jean-François Fortin , Huai-Ke Guo , Steven P. Harris , Elijah Sheridan , Kuver Sinha

Axion-photon conversion is a prime mechanism to detect axion-like particles that share a coupling to the photon. We point out that in the vicinity of neutron stars with strong magnetic fields, magnetars, the effective photon mass receives…

High Energy Physics - Phenomenology · Physics 2023-10-10 Kyrylo Bondarenko , Alexey Boyarsky , Josef Pradler , Anastasia Sokolenko

Studies of axion-like particles (ALPs) commonly focus on a single type of interaction, for example couplings only to photons. Most ALP models however predict correlations between different couplings, which change the phenomenology in…

High Energy Physics - Phenomenology · Physics 2020-07-15 Fatih Ertas , Felix Kahlhoefer

The observation of a non-vanishing rotation of linear polarized laser light after passage through a strong magnetic field by the PVLAS collaboration has renewed the interest in light particles coupled to photons. Axions are a species of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Joerg Jaeckel

Axions or more generally axion-like particles (ALPs) are pseudo-scalar particles predicted by many extensions of the Standard Model of particle physics (SM) and considered as highly viable candidates for dark matter (DM) in the universe. If…

High Energy Astrophysical Phenomena · Physics 2019-11-25 Ahmed Ayad , Geoff Beck

There exists a growing evidence for the anomalous transparency of the Universe for energetic gamma rays. Popular explanations include conversion of photons into hypothetical axion-like particles (ALPs) and back in astrophysical magnetic…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Sergey Troitsky