Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Stefano Profumo"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-22 (2023)
Abstract We provide a comprehensive study of observable spectra from dark matter pair-annihilation or decay into sterile (right-handed) neutrinos. This occurs, for instance, in neutrino portal dark matter models, where a sterile neutrino acts as the
Externí odkaz:
https://doaj.org/article/0db5cd1c898f4f73b2cffad1119f1690
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 5, Pp 1-29 (2020)
Abstract Vector leptoquarks can address the lepton flavor universality anomalies in decays associated with the b → cℓν and b → sℓℓ transitions, as observed in recent years. While not required to explain the anomalies, these leptoquarks gen
Externí odkaz:
https://doaj.org/article/37f77ba5b6b147eea11bc69c49bf7ce8
Autor:
Giorgio Arcadi, Maíra Dutra, Pradipta Ghosh, Manfred Lindner, Yann Mambrini, Mathias Pierre, Stefano Profumo, Farinaldo S. Queiroz
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 3, Pp 1-57 (2018)
Abstract Weakly Interacting Massive Particles (WIMPs) are among the best-motivated dark matter candidates. No conclusive signal, despite an extensive search program that combines, often in a complementary way, direct, indirect, and collider probes, h
Externí odkaz:
https://doaj.org/article/43ba69cfc7814ba8b066fa0e207966f4
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 4, Pp 1-23 (2017)
Abstract Dirac fermion dark matter models with heavy Z ′ mediators are subject to stringent constraints from spin-independent direct searches and from LHC bounds, cornering them to live near the Z ′ resonance. Such constraints can be relaxed, how
Externí odkaz:
https://doaj.org/article/1ab7fe405a20465997ada552234147d2
Publikováno v:
Physics Letters B, Vol 760, Iss C, Pp 807-815 (2016)
General considerations in general relativity and quantum mechanics are known to potentially rule out continuous global symmetries in the context of any consistent theory of quantum gravity. Assuming the validity of such considerations, we derive stri
Externí odkaz:
https://doaj.org/article/9c682cfb1caf4febb2aa57b345ca1890
Autor:
Nicolas Fernandez, Stefano Profumo
Publikováno v:
Physics Letters B, Vol 789, Iss , Pp 603-604 (2019)
Biswas et al. [1] found that the thermal relic density of a dark matter particle freezing out while the universe's energy density is dominated by a non-standard extra component ϕ, whose energy density redshifts faster than radiation, can be greatly
Externí odkaz:
https://doaj.org/article/36b464c9f42842fba1e16a4e041cf0a5
Publikováno v:
Universe, Vol 5, Iss 10, p 213 (2019)
We review the features of Dark Matter as a particle, presenting some old and new instructive models, and looking for their physical implications in the early universe and in the process of structure formation. We also present a schematic of Dark Matt
Externí odkaz:
https://doaj.org/article/8e276cfe10534145a99442642a52f669
Autor:
Lotfi Boubekeur, Stefano Profumo
Publikováno v:
Physical Review D. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8760afba936d57772ea5e2ab827f21a0
https://doi.org/10.1103/physrevd.107.103535
https://doi.org/10.1103/physrevd.107.103535
Publikováno v:
INSPIRE-HEP
Gravitons radiated from light, evaporating black holes contribute to the stochastic background of gravitational waves. The spectrum of such emission depends on both the mass and the spin of the black holes, as well as on the redshifting that occurs b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c635cf2e7b0496e9f7929761be81e3b
https://doi.org/10.1103/physrevd.107.104021
https://doi.org/10.1103/physrevd.107.104021
Autor:
Mrunal Korwar, Stefano Profumo
The Hawking evaporation process, leading to the production of detectable particle species, constrains the abundance of light black holes, presumably of primordial origin. Here, we reconsider and correct constraints from soft gamma-ray observations, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cc6badec4c76aa8186e667c18e70e16
