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Decaying axion-like particles (ALP) with masses in the eV range which might occupy dark matter halos of the Milky Way and other galaxies produce a characteristic "bump" feature in the spectrum of extragalactic background light (EBL). This…

高能物理 - 唯象学 · 物理学 2020-04-20 A. Korochkin , A. Neronov , D. Semikoz

Axion-Like-Particles (ALPs) are hypothetical pseudo-scalar particles actively searched as light dark matter candidates. The coupling of ALPs to photons can give rise to distinctive spectral features in the observed gamma-ray spectrum of…

高能天体物理现象 · 物理学 2026-03-13 Cervane Grimaud , Denys Malyshev , Emmanuel Moulin

Axion-like particles (ALPs) are hypothetical pseudoscalar bosons that arise in many extensions of the Standard Model and are well-motivated dark matter candidates. Nearby massive stars in the late stages of stellar evolution provide a…

Axion-like particles (ALPs), a class of pseudoscalars common to many extensions of the Standard Model, have the capacity to drain energy from the interiors of stars. Consequently, stellar evolution can be used to derive many constraints on…

高能物理 - 唯象学 · 物理学 2021-09-16 Matthew J. Dolan , Frederick J. Hiskens , Raymond R. Volkas

Axion-like particles (ALPs) and photons inter-convert in the presence of a magnetic field. At keV energies in the environment of galaxy clusters, the conversion probability can become unsuppressed for light ALPs. Conversion of thermal X-ray…

高能物理 - 唯象学 · 物理学 2016-07-06 Joseph P. Conlon , M. C. David Marsh , Andrew J. Powell

We report new constraints on axion-like particles (ALPs) using data from the NEON experiment, which features a 16.7 kg of NaI(Tl) target located 23.7 meters from a 2.8 GW thermal power nuclear reactor. Analyzing a total exposure of 3063…

Axion-like particles (ALPs) are a broad class of pseudo-scalar bosons that generically arise from broken symmetries in extensions of the standard model. In many scenarios, ALPs can mix with photons in regions with high magnetic fields.…

高能物理 - 唯象学 · 物理学 2022-03-10 Sunniva Jacobsen , Tim Linden , Katherine Freese

Axion-like particles (ALPs) can provide a portal to new states of a dark sector. We study the phenomenology of this portal when the ALP mainly decays invisibly, while its interaction with the standard model sector proceeds essentially via…

高能物理 - 唯象学 · 物理学 2021-06-16 Luc Darmé , Federica Giacchino , Enrico Nardi , Mauro Raggi

Axion-Like Particles (ALPs) are well-motivated candidates for dark matter and potential mediators to the dark sector. We present a search for ALPs coupled to photons, based on a reinterpretation of COMPASS data. Using the 2009 dataset…

高能物理 - 唯象学 · 物理学 2026-04-23 Mehran Dehpour

The hot interiors of massive stars in the later stages of their evolution provide an ideal place for the production of heavy axion-like particles (ALPs) with mass up to O(100 keV) range. We show that a fraction of these ALPs could stream…

高能物理 - 唯象学 · 物理学 2024-12-31 James H. Buckley , P. S. Bhupal Dev , Francesc Ferrer , Takuya Okawa

Cosmology and particle physics are closer today than ever before, with several searches underway at the interface between cosmology, particle physics, and field theory. The mystery of dark matter (DM) is one of the greatest common unsolved…

高能物理 - 唯象学 · 物理学 2022-03-14 Ahmed Ayad

Constraints on the indirect detection of dark matter are usually obtained from observations of astrophysical objects -- the Galactic Center, dwarf galaxies, M31, etc. Here we propose instead to look for the annihilation or decay of dark…

高能物理 - 唯象学 · 物理学 2021-10-27 Teresa Marrodán Undagoitia , Werner Rodejohann , Tim Wolf , Carlos E. Yaguna

Axion-like particles (ALPs) are hypothetical bosons which may couple with photons. Since many ALPs can be emitted from hot and dense astrophysical plasma, nearby supernovae (SNe) are a possible probe into their properties including the ALP…

高能物理 - 唯象学 · 物理学 2021-08-18 Kanji Mori

Despite considerable experimental progress large parts of the axion-like particle (ALP) parameter space remain difficult to probe in terrestrial experiments. In some cases, however, small-scale structure of the ALP dark matter (DM)…

宇宙学与河外天体物理 · 物理学 2020-02-18 Nikita Blinov , Matthew J. Dolan , Patrick Draper

The growing interest in axion-like particles (ALPs) stems from the fact that they provide successful theoretical explanations of physics phenomena, from the anomaly of the CP-symmetry conservation in strong interactions to the observation…

高能天体物理现象 · 物理学 2021-06-08 Ivana Batković , Alessandro De Angelis , Michele Doro , Marina Manganaro

Leptophilic sub-MeV spin-zero dark matter (DM) decays into photons via one-loop processes, a scenario that has been in part overlooked in current literature. In this work, we provide updated and comprehensive upper limits on scalar,…

高能物理 - 唯象学 · 物理学 2025-09-30 Gabriele Montefalcone , Gilly Elor , Kimberly K. Boddy , Nicola Bellomo

In this paper, we explore the phenomenology of massive Axion-Like Particles (ALPs) coupled to quarks and gluons, dubbed 'QCD ALPs', with an emphasis on the associated low-energy observables. ALPs coupled to gluons and quarks not only induce…

高能物理 - 唯象学 · 物理学 2024-08-20 Alessandro Lella , Eike Ravensburg , Pierluca Carenza , M. C. David Marsh

The recent detection of the cosmic microwave background polarimeter experiment BICEP2 of tensor fluctuations in the B-mode power spectrum basically excludes all plausible axion models where its decay constant is above $10^{13}$ GeV.…

高能物理 - 唯象学 · 物理学 2015-06-19 A. G. Dias , A. C. B. Machado , C. C. Nishi , A. Ringwald , P. Vaudrevange

Heavy axion-like particles (ALPs), with masses up to a few 100 keV and coupled with photons can be efficiently produced in stellar plasmas, contributing to a significant energy-loss. This argument has been applied to helium burning stars in…

高能物理 - 唯象学 · 物理学 2022-06-30 Giuseppe Lucente , Oscar Straniero , Pierluca Carenza , Maurizio Giannotti , Alessandro Mirizzi

We have studied the signals from axion-like particles (ALPs) as dark matter mediators from celestial objects such as neutron stars, brown dwarfs or white dwarfs. We consider the accumulation of dark matter inside the celestial objects using…

高能物理 - 唯象学 · 物理学 2024-10-25 Tanech Klangburam , Chakrit Pongkitivanichkul