Related papers: Axion-like-particle decay in strong electromagneti…

Axion Decay of a Photon in an External Electromagnetic Field

An interaction of a pseudoscalar particle with two photons induced by an external electromagnetic field is used to study the photon decay $\gamma \to \gamma a$ where a is a pseudoscalar particle associated with the Peccei-Quinn U(1)…

High Energy Physics - Phenomenology · Physics 2009-10-31 N. V. Mikheev , A. Ya. Parkhomenko , L. A. Vassilevskaya

Axion Cloud Decay due to the Axion-photon Conversion with Multi-pole Background Magnetic Fields

We consider axion cloud decay due to the axion-photon conversion with multi-pole background magnetic fields. We focus on the $\ell=m=1$ and $n=2$ mode for the axion field configuration since it has the largest growth rate associated with…

High Energy Physics - Phenomenology · Physics 2023-12-21 Yusuke Sakurai , Chul-Moon Yoo , Atsushi Naruko , Daisuke Yamauchi

Parametric co-linear axion photon instability

Axions and axion-like particles generically couple to QED via the axion-photon-photon interaction. This leads to a modification of Maxwell's equations known in the literature as axion-electrodynamics. The new form of Maxwell's equations…

High Energy Physics - Phenomenology · Physics 2022-02-03 K. A. Beyer , G. Marocco , C. Danson , R. Bingham , G. Gregori

Mixing of photons with light pseudoscalars in time-dependent magnetic fields

The effects of an external time-dependent magnetic field in the conversion probability of photon-to-axion-like particles are studied. Our findings show that for a certain time regime, the amplitude of the produced axion-like field can be…

High Energy Physics - Phenomenology · Physics 2016-12-21 Paola Arias , Ariel Arza and , Jorge Gamboa

Constraints on axion-like particles with H.E.S.S. from observations of PKS 2155-304

Axion-like particles are hypothetical new light (sub-eV) bosons predicted in some extensions of the Standard Model of particle physics. In astrophysical environments comprising high-energy gamma rays and turbulent magnetic fields, the…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Pierre Brun , Denis Wouters

Photon-Axion-Like Particle Coupling Constant and Cosmological Observations

We estimated the photon-pseudoscalar particle mixing constant from the effect of cosmological alignment and cosmological rotation of polarization plane of distant QSOs. This effect is explained in terms of birefringent phenomenon due to…

Astrophysics · Physics 2008-05-26 M. Yu. Piotrovich , Yu. N. Gnedin , T. M. Natsvlishvili

Search for Axion(-like) Particles in Heavy-Ion Collisions

We propose a novel way to search for axion(-like) particles in heavy-ion collisions using prompt photons as the probe and the property of conversion between photon and axion(-like) particles under a strong magnetic field generated in the…

High Energy Physics - Phenomenology · Physics 2022-08-23 Yi Yang , Cheng-Wei Lin

Axion decay $a \to f \tilde f$ in a strong magnetic field

The axion decay into charged fermion-antifermion pair $a ~\to f ~\tilde f$ is studied in external crossed and magnetic fields. The result we have obtained can be of use to re-examine the lower limit on the axion mass in case of possible…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. V. Mikheev , L. A. Vassilevskaya

Modified electron trajectory due to axion dark matter background

It is well known that the coupling of the axion-like particle with the photon modifies Maxwell equations. One of the main consequences of these modifications is the conversion of axions into photons. Little has been said about the effect of…

High Energy Physics - Phenomenology · Physics 2024-09-10 Yadir Garnica , J. Barranco

Enhancing photon-axion conversion probability with squeezed coherent states

In particle physics, axions and axion-like particles are ubiquitous. Remarkably, ultra-light axions could constitute dark matter or dark energy. Therefore, it is important to detect axions experimentally. In the presence of a magnetic…

Quantum Physics · Physics 2025-07-11 Taiki Ikeda , Sugumi Kanno , Jiro Soda

Search for di-photon decays of an axion-like particle in radiative $J/\psi$ decays

We search for the di-photon decay of a light pseudoscalar axion-like particle, $a$, in radiative $J/\psi$ decays, using 10 billion $J/\psi$ events collected with the BESIII detector. We find no evidence of a signal and set upper limits at…

High Energy Physics - Experiment · Physics 2024-08-08 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , O. Afedulidis , X. C. Ai , R. Aliberti , A. Amoroso , M. R. An , Q. An , Y. Bai , O. Bakina , I. Balossino , Y. Ban , H. -R. Bao , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , G. R. Che , G. Chelkov , C. Chen , Chao Chen , G. Chen , H. S. Chen , M. L. Chen , S. J. Chen , S. L. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , Y. B. Chen , Y. Q. Chen , Z. J. Chen , Z. Y. Chen , S. K. Choi , G. Cibinetto , S. C. Coen , F. Cossio , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , M. C. Du , S. X. Du , Z. H. Duan , P. Egorov , Y. H. Fan , J. Fang , S. S. Fang , W. X. Fang , Y. Fang , Y. Q. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , Y. T. Feng , K. Fischer , M. Fritsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , Y. N. Gao , Yang Gao , S. Garbolino , I. Garzia , L. Ge , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A. Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y. Guan , A. Q. Guo , L. B. Guo , M. J. Guo , R. P. Guo , Y. P. Guo , A. Guskov , J. Gutierrez , K. L. Han , T. T. Han , W. Y. Han , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , T. Holtmann , P. C. Hong , G. Y. Hou , X. T. Hou , Y. R. Hou , Z. L. Hou , B. Y. Hu , H. M. Hu , J. F. Hu , T. Hu , Y. Hu , G. S. Huang , K. X. Huang , L. Q. Huang , X. T. Huang , Y. P. Huang , T. Hussain , F. Hölzken , N. Hüsken , N. in der Wiesche , J. 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Revisiting axion dark matter with nonlinear transitions

Recently, two of the present authors showed that even when the axion momentum is much smaller than its mass, the axion can still behave like radiation if its energy density greatly exceeds the maximum potential energy set by the cosine-type…

High Energy Physics - Phenomenology · Physics 2025-09-17 Max Miyazaki , Yuma Narita , Deheng Song , Nemin Yaginuma , Wen Yin

Toward the Effective Light and Heavy QCD Axion Scenarios

In this work, we investigate the effective parameter space associated with the axion mass and the axion decay constant in both the light and heavy QCD axion scenarios. We initiate our discussion by considering the simplest case of two…

High Energy Physics - Phenomenology · Physics 2025-12-30 Hai-Jun Li

Photon & Axion Oscillation In a Magnetized Medium: A Covariant Treatment

Pseudoscalar particles, with almost zero mass and very weak coupling to the visible matter, arise in many extensions of the standard model of particle physics. Their mixing with photons in the presence of an external magnetic field leads to…

High Energy Physics - Phenomenology · Physics 2009-08-03 Avijit K. Ganguly , Pankaj Jain , Subhayan Mandal

Axion in an External Electromagnetic Field

We investigate the effective interaction of a pseudoscalar particle with two photons in an external electromagnetic field in the general case of all external particles being off the mass shell. This interaction is used to study the…

High Energy Physics - Phenomenology · Physics 2009-10-31 N. V. Mikheev , A. Ya. Parkhomenko , L. A. Vassilevskaya

Electron-seeded ALP production and ALP decay in an oscillating electromagnetic field

Certain models involving ALPs (axion-like-particles) allow for the coupling of scalars and pseudoscalars to fermions. A derivation of the total rate for production of massive scalars and pseudoscalars by an electron in a monochromatic,…

High Energy Physics - Phenomenology · Physics 2018-06-21 B. King

Search for an Axion-Like Particle in B Meson Decays

Axion-like particles (ALPs) are predicted in many extensions of the Standard Model, and their masses can naturally be well below the electroweak scale. In the presence of couplings to electroweak bosons, these particles could be emitted in…

High Energy Physics - Experiment · Physics 2021-11-04 The BABAR Collaboration

Axion-photon conversion in stochastic magnetic fields

We investigate axion-photon conversion in stochastic magnetic fields, focusing on the evolution of the photon intensity and polarizations induced by conversion into axions. Assuming Gaussian magnetic fields characterized by the power…

High Energy Physics - Phenomenology · Physics 2025-12-25 Wataru Chiba , Ryusuke Jinno , Kimihiro Nomura

Beta decay and other processes in strong electromagnetic fields

We consider effects of the fields of strong electromagnetic waves on various characteristics of quantum processes. After a qualitative discussion of the effects of external fields on the energy spectra and angular distributions of the…

High Energy Physics - Phenomenology · Physics 2013-08-06 Evgeny Akhmedov

Implications of detecting the Axion-Like Particles in Astro-Particle Physics

Axions and axion like particles in general are consequences of the extensions of the standard model in particle physics. Axions have been proposed as hypothetical pseudo-scalar particles in particle physics to solve the strong Charge-Parity…

High Energy Physics - Phenomenology · Physics 2019-05-15 K K Singh