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183 papers · 1 filter
Unitarity violation and restoration in radiative bound-state formation
Marcos M. Flores, Kalliopi Petraki
State-of-the-art calculations motivated by dark matter exhibit severe violation of partial-wave unitarity in the non-relativistic regime in radiative bound-state-formation processe…
The spectrum of axions in a scaling string network
José Correia, Mark Hindmarsh, Joanes Lizarraga +3
We report on measurements of axion spectra and their unequal time correlators in simulations on fixed-grids, the largest such measurements to date. We use a novel combina…
Unitarizing non-relativistic scattering
Marcos M. Flores, Kalliopi Petraki
Unitarity imposes coupled constraints on elastic and inelastic amplitudes. Satisfying them requires resummation of the self-energy contributions from both elastic and inelastic cha…
Slepton pair production at next-to-leading power
Lasse Lorentz Braseth, Tore Klungland, Are Raklev
Near threshold, cross sections for the production of heavy particles are sensitive to large logarithmic terms, which must be resummed to all orders in perturbation theory. Current…
Coalescence production of sexaquark with three diquarks in high-energy nuclear collisions
Zhi-Lei She, An-Ke Lei, Dai-Mei Zhou +4
The coalescence production of sexaquark, a hypothetical stable state with quark content , is investigated by the parton and hadron cascade model PACIAE in collisions…
Sub-GeV dark matter and nano-Hertz gravitational waves from a classically conformal dark sector
Sowmiya Balan, Torsten Bringmann, Felix Kahlhoefer +2
Strong first-order phase transitions in a dark sector offer a compelling explanation for the stochastic gravitational wave background in the nano-Hertz range recently detected by p…