Lattice simulations show axion misalignment production splits into two regimes during first-order phase transitions, unified by a semi-analytical relic density formula that also alters isocurvature and small-scale power spectrum.
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Inflaton-gluon coupling during inflation requires p=2 plateau models to produce isocurvature-free QCD axion dark matter.
Magnetic reconnection in neutron stars drives transient axion bursts by exciting mixed Alfvén-axion modes in a non-ideal axion MHD framework.
ALPS II reports no detection of axion-like particles and establishes improved 95% CL upper limits on di-photon couplings of 1.5e-9 GeV^-1 for masses below 0.1 meV, plus limits for scalar, vector, and tensor bosons.
Light new particles generate asymmetries in e+e- to tau+tau- that allow model-dependent constraints on tau dipole moments, including non-zero effects without electron polarization via imaginary parts.
Scaling monopoles generate PBHs via stochastic overdensities and GWs with correlated spectra, potentially with magnetically charged PBHs as a signature if the scaling ends via gauge boson mass.
The Landau-Zener approximation for axion-photon conversion in neutron star magnetospheres fails when resonance width exceeds conversion region size, leading to revised axion constraints from optical-band searches.
Revised supernova opacity modeling reopens the Turner window for hadronically coupled axions, enabling resonant absorption searches in NaI detectors for couplings |g_app| between 10^{-6.5} and 10^{-2}.
Electroweak-symmetric domain walls produce the observed baryon asymmetry when CP-odd sources and the hierarchy of wall, source, and diffusion lengths suppress face-to-face cancellation.
This work provides a comprehensive analysis of light new physics contributions to tau lepton dipole moments, detailing interpretations of asymmetry measurements for spin-0 and spin-1 bosons, their decoupling to the EFT limit, and a case study of a tauphilic vector boson at Belle II.
Proposes that axion-photon conversion in pre-CMB helical magnetic fields imprints detectable V-mode polarization in the CMB, allowing CLASS 40 GHz observations to constrain ALP masses 10^{-10} to 10^{-8} eV and their photon coupling under optimistic nG field assumptions.
Lattice simulations of Abelian-Higgs cosmic strings with axion-gauge coupling show multimodal axion production that can account for GeV-scale dark matter while predicting observable dark radiation.
Photon-axion conversion near Kerr black holes produces dimming of photon spectral luminosity that increases with black hole spin, magnetic field strength, and photon-axion coupling, most efficiently at high frequencies.
A proposed Chinese charm factory could detect heavy neutral leptons from axionlike-particle decays with a displaced-vertex search, reaching electron-neutrino mixing one to two orders of magnitude below current bounds.
A minimal electrophilic ALP portal for SIMP pion dark matter widens the allowed parameter space, making an ALP mass of order 10 MeV viable and consistent with the X17 anomaly.
Incorporating non-local gravitational self-energy from a T-duality-inspired model yields a regular neutral black-hole metric with extremal Planck-mass particle-black-hole solutions that are thermodynamically stable and suggested as dark matter.
LISA can distinguish EMRI waveforms modified by axion-like halos for SNR ≲ 100, probing m_dm ∼ 10^{-17}--10^{-15} eV and f_a ∼ 3×10^{10}--6×10^{12} GeV for M ∼ 10^4--10^5 M_⊙ binaries under NFW densities.
Semi-analytic modeling of supernova cooling with six PNS parameters yields bounds on axion-nucleon coupling versus ALP mass that match numerical simulation results.
In a supersymmetric effective field theory the axion-like particle mass is generated predominantly by soft supersymmetry-breaking effects, producing a heavy ALP spectrum controlled by the SUSY-breaking scale.
Incorporating the KSVZ axion modifies the mass and electromagnetic charges of the Cho-Maison electroweak monopole through numerical solutions of the coupled equations with axion-photon interaction.
citing papers explorer
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Axion Misalignment Across First-Order Phase Transitions
Lattice simulations show axion misalignment production splits into two regimes during first-order phase transitions, unified by a semi-analytical relic density formula that also alters isocurvature and small-scale power spectrum.
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Isocurvature-Free QCD Axion Dark Matter from Inflaton-Driven Early QCD: the Necessity of Inflationary Plateaus
Inflaton-gluon coupling during inflation requires p=2 plateau models to produce isocurvature-free QCD axion dark matter.
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Axion magnetohydrodynamics and reconnection-driven axion bursts
Magnetic reconnection in neutron stars drives transient axion bursts by exciting mixed Alfvén-axion modes in a non-ideal axion MHD framework.
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Any Light Particle Searches with ALPS II: first science results
ALPS II reports no detection of axion-like particles and establishes improved 95% CL upper limits on di-photon couplings of 1.5e-9 GeV^-1 for masses below 0.1 meV, plus limits for scalar, vector, and tensor bosons.
-
Light new physics and the $\tau$ lepton dipole moments: prospects at Belle II
Light new particles generate asymmetries in e+e- to tau+tau- that allow model-dependent constraints on tau dipole moments, including non-zero effects without electron polarization via imaginary parts.
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PBHs and GWs from Scaling Monopoles
Scaling monopoles generate PBHs via stochastic overdensities and GWs with correlated spectra, potentially with magnetically charged PBHs as a signature if the scaling ends via gauge boson mass.
-
Landau-Zener formula and resonant axion conversion in neutron star magnetospheres
The Landau-Zener approximation for axion-photon conversion in neutron star magnetospheres fails when resonance width exceeds conversion region size, leading to revised axion constraints from optical-band searches.
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Revisiting Turner Window Axions: The Untapped Potential of NaI Dark Matter Detectors
Revised supernova opacity modeling reopens the Turner window for hadronically coupled axions, enabling resonant absorption searches in NaI detectors for couplings |g_app| between 10^{-6.5} and 10^{-2}.
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DMRadio-Core: A new approach for GUT-scale axion searches
Electroweak-symmetric domain walls produce the observed baryon asymmetry when CP-odd sources and the hierarchy of wall, source, and diffusion lengths suppress face-to-face cancellation.
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Light new physics and the $\tau$ lepton dipole moments
This work provides a comprehensive analysis of light new physics contributions to tau lepton dipole moments, detailing interpretations of asymmetry measurements for spin-0 and spin-1 bosons, their decoupling to the EFT limit, and a case study of a tauphilic vector boson at Belle II.
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Probing Axion-Photon conversion via circular polarization imprints in the CMB $V$-mode observations
Proposes that axion-photon conversion in pre-CMB helical magnetic fields imprints detectable V-mode polarization in the CMB, allowing CLASS 40 GHz observations to constrain ALP masses 10^{-10} to 10^{-8} eV and their photon coupling under optimistic nG field assumptions.
-
Multimodal axion emissions from Abelian-Higgs cosmic strings
Lattice simulations of Abelian-Higgs cosmic strings with axion-gauge coupling show multimodal axion production that can account for GeV-scale dark matter while predicting observable dark radiation.
-
Dimming of Photon Ring due to Photon-Axion Conversion around Kerr Black Holes
Photon-axion conversion near Kerr black holes produces dimming of photon spectral luminosity that increases with black hole spin, magnetic field strength, and photon-axion coupling, most efficiently at high frequencies.
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Long-lived sterile neutrinos from axionlike particles at the Super Tau-Charm Facility
A proposed Chinese charm factory could detect heavy neutral leptons from axionlike-particle decays with a displaced-vertex search, reaching electron-neutrino mixing one to two orders of magnitude below current bounds.
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Axion-Like Electrophilic Portal for Pion Dark Matter
A minimal electrophilic ALP portal for SIMP pion dark matter widens the allowed parameter space, making an ALP mass of order 10 MeV viable and consistent with the X17 anomaly.
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Regular black holes with gravitational self-energy as dark matter
Incorporating non-local gravitational self-energy from a T-duality-inspired model yields a regular neutral black-hole metric with extremal Planck-mass particle-black-hole solutions that are thermodynamically stable and suggested as dark matter.
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Impact of the axion-like self-interactions in gravitational atoms for LISA
LISA can distinguish EMRI waveforms modified by axion-like halos for SNR ≲ 100, probing m_dm ∼ 10^{-17}--10^{-15} eV and f_a ∼ 3×10^{10}--6×10^{12} GeV for M ∼ 10^4--10^5 M_⊙ binaries under NFW densities.
-
Semi-analytic bounds on axion-like-particle supernovae emission
Semi-analytic modeling of supernova cooling with six PNS parameters yields bounds on axion-nucleon coupling versus ALP mass that match numerical simulation results.
-
Axion-like particles from soft supersymmetry breaking
In a supersymmetric effective field theory the axion-like particle mass is generated predominantly by soft supersymmetry-breaking effects, producing a heavy ALP spectrum controlled by the SUSY-breaking scale.
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The electroweak magnetic monopole in the presence of KSVZ axion
Incorporating the KSVZ axion modifies the mass and electromagnetic charges of the Cho-Maison electroweak monopole through numerical solutions of the coupled equations with axion-photon interaction.