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Muons in supernovae: implications for the axion-muon coupling
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Muons in supernovae: implications for the axion-muon coupling
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The high temperature and electron degeneracy attained during a supernova allow for the formation of a large muon abundance within the core of the resulting proto-neutron star. If new pseudoscalar degrees of freedom have large couplings to the muon, they can be produced by this muon abundance and contribute to the cooling of the star. By generating the largest collection of supernova simulations with muons to date, we show that observations of the cooling rate of SN 1987A place strong constraints on the coupling of axion-like particles to muons, limiting the coupling to $g_{a\mu} < 10^{-7.5}~\text{GeV}^{-1}$.
Forward citations
Cited by 13 Pith papers
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Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\gamma$-ray Sky
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...
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$\Lambda$ hyperons in core-collapse supernovae: Equilibration and neutrino opacities
Lambda hyperons equilibrate rapidly in post-collapse proto-neutron stars through nonleptonic NN to N Lambda processes and enhance low-energy muon neutrino opacities beyond nucleonic contributions.
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Neutron Star Bounds on Muonic Fifth Forces from Picometer to Kilometer Scales
Neutron stars yield tighter bounds on muonic scalar and vector fifth forces (g_φμ ≲ 10^{-12}, g_Vμ ≲ 3×10^{-13} for m_X ≲ 100 keV) than SN 1987A, plus hydrostatic constraints for long-range cases.
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Beyond thermal approximations: Precise cosmological bounds on Axion-Like Particles
Solving the momentum-dependent Boltzmann equation and propagating the exact non-thermal ALP spectrum into CMB analyses yields 95% limits f_a>1.63e6 GeV (e), 9.41e6 GeV (mu), 8.06e4 GeV (tau), and g_a_gamma<1.98e-8 GeV^-1.
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Constraints on Axion-Like Particles with the Silicon Detector at a Nuclear Reactor
New 90% C.L. limits on the ALP–photon coupling in the 0.1–100 keV range are derived from Connie and Atucha-II reactor data via plasmon excitation in silicon; a 30 kg·yr Oscura-style run could improve on NEON by about tenfold.
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Supernova production of axion-like particles coupling to electrons, reloaded
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.
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Muonic Boson Limits: Supernova Redux
Supernova models yield coupling limits g_a ≲ 0.9×10^{-10} and g_φ ≲ 0.4×10^{-10} for masses above 100 keV from gamma-ray observations, plus stronger trapping-regime limits from explosion energy, that are difficult to ...
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SN1987A Constraints of Light $\boldsymbol{Z'}$ with Non-Mixing Polarisations
Treating longitudinal and transverse polarizations of light Z' bosons independently modifies the SN1987A bounds on their parameter space in the Lμ-Lτ model.
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$L_\mu-L_\tau$ gauge bosons in beam dumps and supernovae
Re-evaluation of sub-GeV Lμ-Lτ gauge boson constraints from beam-dump production modes and multiple supernova observables, highlighting differences from existing literature.
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Axion-photon conversion in transient compact stars: Systematics, constraints, and opportunities
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...
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Production of Leptophilic Bosons in Ultradegenerate Relativistic Matter
Derives bremsstrahlung production rates and T-dependent energy-loss scalings for leptophilic bosons in NS cores to enable coupling constraints from cooling data.
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Hunting for Axions in REactor neutrino COherent scattering Detection Experiment
RECODE, a reactor experiment with two germanium detectors, could probe axion-photon and axion-electron couplings into the cosmological triangle region at masses around 0.3 to 0.9 MeV.
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Flavor phenomenology of light dark particles
Review surveying limits and prospects for flavor-violating decays of light axion-like particles, highlighting complementarity of lab, astro, and cosmo probes up to 10^12 GeV scales.
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