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- Centre National de la Recherche ScientifiqueFR123 papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR51 papers
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39 papers · 1 filter
First Constraints on the Photon Coupling of Axion-like Particles from Multimessenger Studies of the Neutron Star Merger GW170817
P. S. Bhupal Dev, Jean-François Fortin, Steven P. Harris +2
We use multimessenger observations of the neutron star merger event GW170817 to derive new constraints on axion-like particles (ALPs) coupling to photons. ALPs are produced via Pri…
Light scalars in neutron star mergers
P. S. Bhupal Dev, Jean-François Fortin, Steven P. Harris +2
Due to their unique set of multimessenger signals, neutron star mergers have emerged as a novel environment for studies of new physics beyond the Standard Model (SM). As a case stu…
Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
Jean-François Fortin, Huai-Ke Guo, Steven P. Harris +3
We review topics in searches for axion-like-particles (ALPs), covering material that is complementary to other recent reviews. The first half of our review covers ALPs in the extre…
Magnetars and Axion-like Particles: Probes with the Hard X-ray Spectrum
Jean-François Fortin, Huai-Ke Guo, Steven P. Harris +2
Quiescent hard X-ray and soft gamma-ray emission from neutron stars constitute a promising frontier to explore axion-like-particles (ALPs). ALP production in the core peaks at ener…
A Mellin Transform Approach to Rephasing Invariants
Jean-François Fortin, Nicolas Giasson, Luc Marleau +1
In the low-energy effective theory of neutrinos, the Haar measure for unitary matrices is very likely to give rise to the observed PMNS matrix. Assuming the Haar measure, we determ…
Axions in neutron star mergers
Steven P. Harris, Jean-Francois Fortin, Kuver Sinha +1
Supernovae and cooling neutron stars have long been used to constrain the properties of axions, such as their mass and interactions with nucleons and other Standard Model particles…