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Proto-neutron stars as cosmic factories for massive axion-like-particles

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arxiv 2211.13760 v2 pith:BE3JM564 submitted 2022-11-24 hep-ph astro-ph.HE

classification hep-phastro-ph.HE
keywords alpsaxion-like-particlesmassiveparameterproto-neutronsupernovaadditionbremsstrahlung
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The parameter space of massive axion-like-particles (ALPs) with $m_a \sim {\mathcal O} (100)$ MeV and coupled with nucleons is largely unexplored. Here, we present new constraints in this parameter region. In doing so, we characterize the supernova emissivity of heavy ALPs from a proto-neutron star, including for the first time mass effects in both nucleon-nucleon Bremsstrahlung and pionic Compton processes. In addition, we highlight novel possibilities to probe the couplings with photons and leptons from supernova ALP decays.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\gamma$-ray Sky

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    Axions produced in supernovae generate a diffuse gamma-ray signal through conversion in magnetic fields, yielding competitive constraints on the axion-photon coupling from COMPTEL, EGRET, and Fermi-LAT data plus forec...

  2. Solar axion searches with RES-NOVA: projected sensitivity and first prototype limit

    hep-ex 2026-07 conditional novelty 6.0 of 10

    RES-NOVA's projected 1 ton-year sensitivity reaches within a factor of ~2 of XENONnT on the solar-axion electron coupling, and a 32.4 g-day archaeological-lead prototype excludes new parts of the (g_ae, g_aγ) plane.

  3. MeV Electrophilic Axion-like Particles from Sun

    hep-ph 2026-07 conditional novelty 6.0 of 10

    MeV axion-like particles could be made when 5.5 MeV solar fusion photons Compton-scatter off electrons; current LZ, PandaX-4T and Borexino data would then constrain g_ae to (1.7-3.7)e-6 in the 0.4-1 MeV window.

  4. Supernova production of axion-like particles coupling to electrons, reloaded

    hep-ph 2025-03 unverdicted novelty 6.0 of 10

    Updated supernova ALP production rates including semi-Compton and pair-annihilation channels yield revised bounds on electron couplings, dominated by the decay a to e+ e- gamma at small couplings.

  5. Axion-photon conversion in transient compact stars: Systematics, constraints, and opportunities

    hep-ph 2025-09 unverdicted novelty 5.0 of 10

    Analytical expressions for ALP-photon conversion in transient compact stars yield an updated bound g_aγ < 5×10^{-12} GeV^{-1} for m_a ≲ 10^{-9} eV from SN 1987A, plus sensitivity forecasts for future Galactic SN and N...

  6. Semi-analytic bounds on axion-like-particle supernovae emission

    hep-ph 2026-04 unverdicted novelty 4.0 of 10

    Semi-analytic modeling of supernova cooling with six PNS parameters yields bounds on axion-nucleon coupling versus ALP mass that match numerical simulation results.

  7. Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments

    hep-ph 2026-03 conditional novelty 2.0 of 10

    The meV axion window is presented as a coherent, cross-validated search program in which string theory, stellar cooling, dark matter, and new detector concepts converge on the same mass range.

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