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Supernova bound on Axion-Like Particles coupled with electrons

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arxiv 2107.12393 v2 pith:ZLBSLYPG submitted 2021-07-26 hep-ph astro-ph.HE

Giuseppe Lucente , Pierluca Carenza This is my paper · ORCID
classification hep-phastro-ph.HE
keywords electronsalpsaxion-likeboundcoupledevaluateparticlessupernova
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abstract

Axion-Like Particles (ALPs) coupled with electrons would be produced in a Supernova (SN) via electron-proton bremsstrahlung and electron-positron fusion. We evaluate the ALP emissivity from these processes by taking into account the ALP mass and thermal effects on electrons in the strongly degenerate and relativistic SN plasma. Using a state-of-the-art SN simulation, we evaluate the SN 1987A cooling bound on ALPs for masses in the range $1-200$ MeV, which excludes currently unprobed regions down to $g_{ae}\sim 2.5\times 10^{-10}$ at $m_a\sim 120$ MeV.

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Cited by 6 Pith papers

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

  1. Long-lived Axion-Like Particles from Tau Decays

    hep-ph 2025-07 conditional novelty 7.0 of 10

    Leptophilic long-lived ALPs produced in tau decays are shown to yield new CHARM/BEBC constraints and improved future sensitivity, particularly at SHiP, extending reach to fa up to 10^8-10^9 GeV in LFV scenarios.

  2. 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.

  3. Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model

    hep-ph 2025-12 conditional novelty 6.0 of 10

    Recasting axion limits onto the one-loop H3 couplings of the minimal left-right symmetric model excludes the right-handed scale up to 2×10^9 GeV and could eventually probe 6×10^11 GeV.

  4. In-flight positron annihilation as a probe of feebly interacting particles

    hep-ph 2025-01 conditional novelty 6.0 of 10

    In-flight annihilation of positrons produced by supernova feebly interacting particles gives the strongest astrophysical bounds on their electron couplings for masses of roughly 10-200 MeV, covering ALPs, sterile neut...

  5. Searching for long-lived particles from stopped pions and muons at the CiADS-BDE

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Projected 5-year sensitivity of the proposed CiADS-BDE shows reach beyond current bounds for HNLs, electrophilic and LFV ALPs, and RPV light binos.

  6. Blazar Boosted ALP and vector portal Dark matter confronting light mediator searches

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Blazar-boosted dark matter scattering in Super-Kamiokande can exclude previously unconstrained parameter space for ALP- and vector-mediated sub-MeV dark matter, beating BaBar, NA64, beam dump, and stellar cooling limi...

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