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Related papers: Toward a search for axion-like particles at the LN…

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Axion-Like Particles (ALPs), if exist in nature, are expected to mix with photons in the presence of an external magnetic field. The energy range of photons which undergo strong mixing with ALPs depends on the ALP mass, on its coupling with…

High Energy Astrophysical Phenomena · Physics 2013-11-13 Olga Mena , Soebur Razzaque

Axion-like particles (ALPs) are compelling candidates for dark matter and potential portals to new physics beyond the Standard Model. Photons traversing magnetized regions can convert into ALPs, producing characteristic, energy-dependent…

High Energy Astrophysical Phenomena · Physics 2026-01-23 Denys Malyshev , Lidiia Zadorozhna , Yuriy Bidasyuk , Andrea Santangelo , Oleg Ruchayskiy

Searches for axion-like particles (ALPs) with masses in the GeV range are a central objective of present and future Intensity Frontier experiments. Interpreting these searches demands a reliable description of ALP production in hadronic…

High Energy Physics - Phenomenology · Physics 2026-02-04 Maksym Ovchynnikov , Andrii Zaporozhchenko

Axion-like particles (ALPs) are ubiquitous in models of new physics explaining some of the most pressing puzzles of the Standard Model. However, until relatively recently, little attention has been paid to its interplay with flavour. In…

High Energy Physics - Phenomenology · Physics 2021-09-15 Adrian Carmona , Christiane Scherb , Pedro Schwaller

A fraction of AGN producing VHE gamma-rays are located in galaxy clusters. The magnetic field present in the intra-cluster medium would lead to conversions of VHE photons into axion-like particles (ALPs), which are a generic prediction of…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Dieter Horns , Luca Maccione , Manuel Meyer , Alessandro Mirizzi , Daniele Montanino , Marco Roncadelli

Burrage, Davis, and Shaw recently suggested exploiting the correlations between high and low energy luminosities of astrophysical objects to probe possible mixing between photons and axion-like particles (ALP) in magnetic field regions.…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-21 Guido Walter Pettinari , Robert Crittenden

Axion-like particles (ALPs) provide a compelling avenue for exploring physics beyond the Standard Model. In astrophysical magnetized plasmas an ALP-photon coupling $g_{a\gamma}$ induces energy-dependent oscillations in the photon survival…

High Energy Astrophysical Phenomena · Physics 2025-07-30 Yu Zhou , Jiejia Liu , Volodymyr Takhistov , Kazuhisa Mitsuda

Production of axionlike particles (ALPs) by primordial magnetic fields may have significant impacts on cosmology. We discuss the production of ALPs in the presence of the primordial magnetic fields. We find a region of the ALP mass and…

High Energy Physics - Phenomenology · Physics 2017-08-09 Kohei Kamada , Yuichiro Nakai

Axions or ALPs are hypothetical particles predicted by BSM theories, which make one of the dark matter candidates. These particles can convert into photons and vice-versa in the presence of magnetic field, with a probability decided by its…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-19 Harsh Mehta , Suvodip Mukherjee

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…

High Energy Physics - Phenomenology · Physics 2025-10-21 Zhi-Qi Guo , Yue-Lin Sming Tsai , Lei Wu , Zi-Qing Xia

Opportunities for searches for axion-like particles (ALPs) coupling to photons in $\mathrm{e}^+\mathrm{e}^-$ collisions at the Future Circular Collider (FCC-ee) and International Linear Collider (ILC) are investigated. We perform a study of…

High Energy Physics - Experiment · Physics 2024-03-28 Patricia Rebello Teles , David d'Enterria , Victor P. Gonçalves , Daniel E. Martins

A virtual production of heavy axion-like particles (ALPs) via light-by-light scattering in pp, pPb and Pb collisions at the future 100 TeV collider FCC-hh is studied. Both differential and total cross sections are calculated. The 95\% C.L.…

High Energy Physics - Phenomenology · Physics 2026-05-18 S. C. Inan , A. V. Kisselev

In this article, we claim that axion-like particles (ALPs) with MeV masses can be produced with semi-relativistic velocities in core-collapse supernovae (SNe), generating a diffuse galactic flux. We show that these ALPs can be detected in…

High Energy Physics - Phenomenology · Physics 2025-07-15 David Alonso-González , David Cerdeño , Marina Cermeño , Andres D. Perez

The current Large Hadron Collider (LHC) data show no clear indication of new physics and only incremental improvements are anticipated at the energy frontier in the near future. However, while the focus of the LHC has been on constraining…

High Energy Physics - Phenomenology · Physics 2025-10-10 Amit Adhikary , Aoife Bharucha , Lorenzo Feligioni , Michele Frigerio

We propose a search for long lived axion-like particles (ALPs) in exotic top decays. Flavour-violating ALPs appear as low energy effective theories for various new physics scenarios such as t-channel dark sectors or Froggatt-Nielsen models.…

High Energy Physics - Phenomenology · Physics 2022-10-21 Adrian Carmona , Fatemeh Elahi , Christiane Scherb , Pedro Schwaller

Axion-like particles (ALPs) are new particles that extend beyond the standard model (SM) and are highly motivated. When considering ALPs within an effective field theory framework, their couplings with SM particles can be studied…

High Energy Physics - Phenomenology · Physics 2023-07-04 Chih-Ting Lu , Xiaoyi Luo , Xinqi Wei

In this review, we present a self-contained introduction to axion-like particles (ALPs) with a particular focus on their effects on photon polarization: both theoretical and phenomenological aspects are discussed. We derive the photon…

High Energy Physics - Phenomenology · Physics 2024-08-01 Giorgio Galanti

Neutrino experiments lie at the edge of the intensity frontier and therefore can be exploited to search for new light particles weakly coupled to the visible sector. In this work we derive new constraints on axion-like particles (ALPs)…

High Energy Physics - Phenomenology · Physics 2023-10-17 Pilar Coloma , Pilar Hernández , Salvador Urrea

Adding an axion-like particle (ALP) to the Standard Model, with a field velocity in the early universe, simultaneously explains the observed baryon and dark matter densities. This requires one or more couplings between the ALP and photons,…

High Energy Physics - Phenomenology · Physics 2021-02-24 Raymond T. Co , Lawrence J. Hall , Keisuke Harigaya

We derive new constraints on axion-like particles (ALPs) using precision $X$-ray polarization studies of magnetars. Specifically, we use the first detection of polarized $X$-rays from the magnetars 4U 0142+61 and 1RXS J170849.0-400910 by…

High Energy Physics - Phenomenology · Physics 2023-12-22 Ephraim Gau , Fazlollah Hajkarim , Steven P. Harris , P. S. Bhupal Dev , Jean-Francois Fortin , Henric Krawczynski , Kuver Sinha
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