1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Trieste Astronomical ObservatoryIT826 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT688 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT606 papers
- University of TriesteIT516 papers
- Centre National de la Recherche ScientifiqueFR476 papers
- Ludwig-Maximilians-Universität MünchenDE400 papers
- Instituto de Astrofísica de CanariasES360 papers
- Max Planck Institute for Extraterrestrial PhysicsDE350 papers
- University College LondonGB348 papers
- Institute for High Energy PhysicsES346 papers
- Universidad de La LagunaES335 papers
- Institut d'Astrophysique de ParisFR332 papers
39 papers · 1 filter
Bubble Nucleation from Boson Star Collapse
Aleksandr Azatov, Takeshi Kobayashi, Nicklas Ramberg
We present a new classical mechanism for nucleation of bubbles of true vacuum. The mechanism arises when dense boson stars form in the false vacuum. As the boson stars collapse due…
Classical constant electric fields and the Schwinger effect in de Sitter
Mar Bastero-Gil, Paulo B. Ferraz, António Torres Manso +2
We study constant classical electric fields and the Schwinger effect in de Sitter space, with potential implications for magnetogenesis and inflationary dark matter production. Tre…
Recasting Experimental Constraints on Relativistic Magnetic Monopoles
Daniele Perri, Michele Doro, Takeshi Kobayashi
Magnetic monopoles with masses up to GeV can be accelerated to relativistic velocities in Galactic and intergalactic magnetic fields. The cosmic flux of relativistic mono…
Schwinger Current in de Sitter Space
Mar Bastero-Gil, Paulo B. Ferraz, António Torres Manso +2
We study classical background electric fields and the Schwinger effect in de Sitter space. We show that having a constant electric field in de Sitter requires the photon to have a…
Monopole acceleration in intergalactic magnetic fields
Daniele Perri, Kyrilo Bondarenko, Michele Doro +1
We provide a comprehensive analysis of the acceleration of magnetic monopoles in intergalactic magnetic fields. We demonstrate that monopoles with intermediate to low masses can be…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The increasing interest in Long-Lived Particles (LLPs) has led to numerous proposed experiments in order to search for them. However, the sensitivity estimates published by these e…
Quantisation Across Bubble Walls and Friction
Aleksandr Azatov, Giulio Barni, Rudin Petrossian-Byrne +1
We quantise from first principles field theories living on the background of a bubble wall in the planar limit with particular focus on the case of spontaneous breaking of gauge sy…
Anharmonic Effects on the Squeezing of Axion Perturbations
Valentina Danieli, Takeshi Kobayashi, Nicola Bartolo +2
It is assumed in standard cosmology that the Universe underwent a period of inflation in its earliest phase, providing the seeds for structure formation through vacuum fluctuations…
Parker Bounds on Monopoles with Arbitrary Charge from Galactic and Primordial Magnetic Fields
Takeshi Kobayashi, Daniele Perri
We present a comprehensive study of Parker-type bounds on magnetic monopoles with arbitrary magnetic charge, including minicharged monopoles and magnetic black holes. We derive the…
Ultraviolet Sensitivity of Peccei-Quinn Inflation
Davide Dal Cin, Takeshi Kobayashi
The radial direction of the Peccei--Quinn field can drive cosmic inflation, given a non-minimal coupling to gravity. This scenario has been considered to simultaneously explain inf…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The idea that new physics could take the form of feebly interacting particles (FIPs) - particles with a mass below the electroweak scale, but which may have evaded detection due to…
Towards the optimal beam dump experiment to search for feebly interacting particles
Kyrylo Bondarenko, Alexey Boyarsky, Oleksii Mikulenko +2
Future searches for new physics beyond the Standard Model are without doubt in need of a diverse approach and experiments with complementary sensitivities to different types of cla…
Sensitivity of the FACET experiment to Heavy Neutral Leptons and Dark Scalars
Maksym Ovchynnikov, Viktor Kryshtal, Kyrylo Bondarenko
We analyze the potential of the recently proposed experiment FACET (Forward-Aperture CMS ExTension) to search for new physics. As an example, we consider the models of Higgs-like s…
Ultra-relativistic bubbles from the simplest Higgs portal and their cosmological consequences
Aleksandr Azatov, Giulio Barni, Sabyasachi Chakraborty +2
We analyze the phase transitions in the minimal extension of the SM with a real singlet scalar field. The novelty of our study is that we identify and analyze in details the region…
Parker Bound and Monopole Pair Production from Primordial Magnetic Fields
Takeshi Kobayashi, Daniele Perri
We present new bounds on the cosmic abundance of magnetic monopoles based on the survival of primordial magnetic fields during the reheating and radiation-dominated epochs. The new…
Hints of dark photon dark matter from observations and hydrodynamical simulations of the low-redshift Lyman- forest
James S. Bolton, Andrea Caputo, Hongwan Liu +1
Recent work has suggested that an additional per baryon of heating in the intergalactic medium is needed to reconcile hydrodynamical simulations with Lyma…
Tests of Low-Scale Leptogenesis in Charged Lepton Flavour Violation Experiments
A. Granelli, J. Klarić, S. T. Petcov
We consider low-energy tests of low-scale leptogenesis based on the type I seesaw scenario with three right-handed singlet neutrinos . In this scenario, successful leptoge…
Electroweak dark matter model accounting for the CDF -mass anomaly
Jin-Wei Wang, Xiao-Jun Bi, Peng-Fei Yin +1
Recently, the CDF collaboration reported a new measurement of the boson mass GeV, which shows a deviation from the standard model predictio…
Exploring Fermionic Multiplet Dark Matter through Precision Measurements at the CEPC
Lin-Qing Gao, Xiao-Jun Bi, Jin-Wei Wang +2
New physics could be explored through loop effects by the precision measurements at the Circular Electron Positron Collider due to its clean collision environment and high luminosi…
Four-fermion operators at dimension 6: dispersion relations and UV completions
Aleksandr Azatov, Diptimoy Ghosh, Amartya Harsh Singh
A major task in phenomenology today is constraining the parameter space of SMEFT and constructing models of fundamental physics that the SM derives from. To this effect, we report…
Production of Chern-Simons bosons in decays of mesons
Yuliia Borysenkova, Pavlo Kashko, Mariia Tsarenkova +2
We consider the effective interaction of quarks with a new GeV-scale vector particle that couples to electroweak gauge bosons by the so-called effective Chern-Simons interaction. W…
Baryogenesis via relativistic bubble walls
Aleksandr Azatov, Miguel Vanvlasselaer, Wen Yin
We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic ve…
Inelastic dark matter scattering off Thallium cannot save DAMA
Sunniva Jacobsen, Katherine Freese, Chris Kelso +2
We study the compatibility of the observed DAMA modulation signal with inelastic scattering of dark matter (DM) off of the Thallium (Tl) dopant in DAMA. In this work we tes…
Dark photon dark matter from a rolling inflaton
Mar Bastero-Gil, Jose Santiago, Lorenzo Ubaldi +1
We study in detail a recently proposed mechanism for producing non-thermal dark photon dark matter at the end of inflation in the mass range $μ\,{\rm eV} \lesssim m \lesssim 10\,{\…