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Autor:
Dimitrios Karamitros, Paola Arias, Nicolás Bernal, Moira Venegas, Leszek Roszkowski, Carlos Maldonado
We study axion dark matter production from a misalignment mechanism in scenarios featuring a general nonstandard cosmology. Before the onset of Big Bang nucleosynthesis, the energy density of the universe is dominated by a particle field ϕ described
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::951c557d347464f7c70a43b22e3f957e
http://arxiv.org/abs/2107.13588
http://arxiv.org/abs/2107.13588
Publikováno v:
Journal of Cosmology and Astroparticle Physics, vol 2021, iss 05
A dark QCD sector is a relatively minimal extension of the Standard Model (SM) that admits Dark Matter (DM) candidates but requires no portal to the visible sector beyond gravitational interactions: A "nightmare scenario" for DM detection. We conside
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca17e95630e15cfce602bea29b127d58
https://escholarship.org/uc/item/5495f9pp
https://escholarship.org/uc/item/5495f9pp
Publikováno v:
Galaxies
Volume 9
Issue 2
Galaxies, 2021, 9 (2), pp.45. ⟨10.3390/galaxies9020045⟩
Galaxies, Vol 9, Iss 45, p 45 (2021)
Volume 9
Issue 2
Galaxies, 2021, 9 (2), pp.45. ⟨10.3390/galaxies9020045⟩
Galaxies, Vol 9, Iss 45, p 45 (2021)
The entropy production scenarios due to electroweak phase transition (EWPT) in the framework of the minimal extension of standard model namely two Higgs doublet model(2HDM) is revisited. The possibility of first order phase transition is discussed. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4db40935d9867bba93df74f9020eeba5
We study the ability of the Hyper-Kamiokande (HyperK) experiment, currently under construction, to constrain a neutrino signal produced via the annihilation of dark matter captured in the Sun. We simulate upward stopping and upward through-going muon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ceb03876c0634975b535d812cd0092da
Autor:
Alberto Salvio
The relic gravitational wave background due to tensor linear perturbations generated during Higgs inflation is computed. Both the Standard Model and a well-motivated phenomenological completion (that accounts for all the experimentally confirmed evid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f6e0b994be223f9aaeccd2eff59afeb
We entertain the exotic possibility that dark matter (DM) decays or annihilations taking place in our galaxy may produce a flux of relativistic very weakly-coupled bosons, axions or dark photons. We show that there exist several upper bounds for this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c32dc14f8a52c1d7052e16ee818eb1
http://arxiv.org/abs/2006.12488
http://arxiv.org/abs/2006.12488
Indirect detection of dark matter via its annihilation products is a key technique in the search for dark matter in the form of weakly interacting massive particles (WIMPs). Strong constraints exist on the annihilation of WIMPs to highly visible Stan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0cf1807b37eb990ec34292691828066
http://arxiv.org/abs/2005.01950
http://arxiv.org/abs/2005.01950
Autor:
Betty X. Hu, Abraham Loeb
Gravitational waves (GWs) are produced by colliding particles through the gravitational analogue of electromagnetic bremsstrahlung. We calculate the contribution of free-free emission in the radiation-dominated Universe to the stochastic GW backgroun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3fe16222320206e8450b9ecbbac9479
http://arxiv.org/abs/2004.02895
http://arxiv.org/abs/2004.02895
Autor:
Gustavo Marques-Tavares, Nikita Blinov
Standard cosmology predicts that prior to matter-radiation equality about 41% of the energy density was in free-streaming neutrinos. In many beyond Standard Model scenarios, however, the amount and free-streaming nature of this component is modified.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d64dc08994dcffcb03816a6020c023
http://arxiv.org/abs/2003.08387
http://arxiv.org/abs/2003.08387
We scrutinise the widely studied minimal scotogenic model of dark matter (DM) and radiative neutrino mass from the requirement of a strong first order electroweak phase transition (EWPT) and observable gravitational waves at future planned space base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abc1c5619d08386aeaba9cf82c82a1f0
http://arxiv.org/abs/2003.02276
http://arxiv.org/abs/2003.02276