Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Ullio, Piero"'
Autor:
Regis, Marco, Korsmeier, Michael, Bernardi, Gianni, Pignataro, Giada, Reynoso-Cordova, Javier, Ullio, Piero
Publikováno v:
JCAP08(2023)030
Radiative emissions from electrons and positrons generated by dark matter (DM) annihilation or decay are one of the most investigated signals in indirect searches of WIMPs. Ideal targets must have large ratio of DM to baryonic matter. However, such `
Externí odkaz:
http://arxiv.org/abs/2305.01999
We investigate the kinetic heating of neutron stars due to dark matter scattering in minimal models with scalar lepton partners mediating interactions which can account for the anomalous magnetic moment of the muon. In particular, such models in whic
Externí odkaz:
http://arxiv.org/abs/2209.12552
Publikováno v:
JCAP 07 (2022) 013
Dark matter particles near the center of a blazar, after being accelerated by the elastic collisions with relativistic electrons and protons in the blazar jet, can be energetic enough to trigger detectable signals at terrestrial detectors. In this wo
Externí odkaz:
http://arxiv.org/abs/2202.07598
The E989 experiment at the Fermi National Laboratory reported a 4.2$\sigma$ discrepancy between the measured magnetic dipole moment of the muon, and its prediction in the Standard Model (SM). In this study, we address the anomaly by considering a min
Externí odkaz:
http://arxiv.org/abs/2112.08992
Publikováno v:
Phys. Rev. Lett. 128, 221104 (2022)
We explore the possibility that relativistic protons in the extremely powerful jets of blazars may boost via elastic collisions the dark matter particles in the surroundings of the source to high energies. We concentrate on two sample blazars, TXS 05
Externí odkaz:
http://arxiv.org/abs/2111.13644
Publikováno v:
Phys. Rev. D 102, 083009 (2020)
We consider a dark sector model containing stable fermions charged under an unbroken $U(1)$ gauge interaction, with a massless dark photon as force carrier, and interacting with ordinary matter via scalar messengers. We study its early Universe evolu
Externí odkaz:
http://arxiv.org/abs/2005.04146
Autor:
Wang, Jiaxin, Jaffe, Tess R., Enßlin, Torsten A., Ullio, Piero, Ghosh, Shamik, Santos, Larissa
Publikováno v:
ApJS (2020) 247 18
We present version X of the hammurabi package, the HEALPix-based numeric simulator for Galactic polarized emission. Improving on its earlier design, we have fully renewed the framework with modern C++ standards and features. Multi-threading support h
Externí odkaz:
http://arxiv.org/abs/1907.00207
Autor:
Petac, Mihael, Ullio, Piero
Publikováno v:
Phys. Rev. D 99, 043003 (2019)
We address the problem of reconstructing the phase-space distribution function for an extended collisionless system, with known density profile and in equilibrium within an axisymmetric gravitational potential. Assuming that it depends on only two in
Externí odkaz:
http://arxiv.org/abs/1812.01531
Publikováno v:
JCAP12(2018)039
Milky Way dwarf spheroidal satellites are a prime target for Dark Matter (DM) indirect searches. There have been recent reassessments of the expected DM gamma-ray signals in case of long-range interactions, commonly known as Sommerfeld enhancement. S
Externí odkaz:
http://arxiv.org/abs/1804.05052
Publikováno v:
JCAP 1807 (2018)
The nature of dark matter remains one of the key science questions. Weakly Interacting Massive Particles (WIMPs) are among the best motivated particle physics candidates, allowing to explain the measured dark matter density by employing standard big-
Externí odkaz:
http://arxiv.org/abs/1802.03399