Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Vivian POULIN"'
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-25 (2022)
Abstract We present cosmological constraints on the sum of neutrino masses as a function of the neutrino lifetime, in a framework in which neutrinos decay into dark radiation after becoming non-relativistic. We find that in this regime the cosmic mic
Externí odkaz:
https://doaj.org/article/80b873f30b9d45208b614bae532b21c5
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 6, Pp 1-35 (2020)
Abstract Dark photon dark matter will resonantly convert into visible photons when the dark photon mass is equal to the plasma frequency of the ambient medium. In cosmological contexts, this transition leads to an extremely efficient, albeit short-li
Externí odkaz:
https://doaj.org/article/0f457cd0f9db4f83bbe650918734e4e2
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 4, Pp 1-33 (2020)
Abstract At present, the strongest upper limit on ∑m ν , the sum of neutrino masses, is from cosmological measurements. However, this bound assumes that the neutrinos are stable on cosmological timescales, and is not valid if the neutrino lifetime
Externí odkaz:
https://doaj.org/article/47fa760f35fb4c95b55b86242de92426
Autor:
Rouzbeh Allahverdi, Mustafa A. Amin, Asher Berlin, Nicolas Bernal, Christian T. Byrnes, M. Sten Delos, Adrienne L. Erickcek, Miguel Escudero, Daniel G. Figueroa, Katherine Freese, Tomohiro Harada, Dan Hooper, David I. Kaiser, Tanvi Karwal, Kazunori Kohri, Gordan Krnjaic, Marek Lewicki, Kaloian D, Lozanov, Vivian Poulin, Kuver Sinha, Tristan L. Smith, Tomo Takahashi, Tommi Tenkanen, James Unwin, Ville Vaskonen, Scott Watson
Publikováno v:
The Open Journal of Astrophysics, Vol 4 (2021)
It is commonly assumed that the energy density of the Universe was dominated by radiation between reheating after inflation and the onset of matter domination 54,000 years later. While the abundance of light elements indicates that the Universe was r
Externí odkaz:
https://doaj.org/article/b4edf11253f44859a7be9f9b08edee66
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023204 (2020)
Even if massive (10M_{⊙}≲M≲10^{4}M_{⊙}) primordial black holes (PBHs) can only account for a small fraction of the dark matter (DM) in the universe, they may still be responsible for a sizable fraction of the coalescence events measured by LI
Externí odkaz:
https://doaj.org/article/06046a7560d14ac6b8e92bcd11d9a893
Autor:
Nils Schöneberg, Guillermo Franco Abellán, Andrea Pérez Sánchez, Samuel J. Witte, Vivian Poulin, Julien Lesgourgues
Publikováno v:
Physics Reports. 984:1-55
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1b459a098e583843236be252b6a7d09
https://doi.org/10.1016/j.physrep.2022.07.001
https://doi.org/10.1016/j.physrep.2022.07.001
Autor:
Maud Baylac, Jean-Luc Biarrotte, Julien Billard, Dominique Boutigny, Chiara Caprini, Gabriel Chardin, Patrick Chardon, Pierre Cladé, Sabine Crépé-Renaudin, Hélène Courtois, Sylvain David, Sacha Davidson, Emmanuel Dartois, Mirella Del Nero, Jean Duprat, Josquin Errard, Fanny Farget, Berrie Giebels, Vladimir Vava Gligorov, Raphaël Granier De Cassagnac, Saida Guellati, Francesca Gulminelli, Ferid Haddad, Sébastien Incerti, Marc Knecht, Antoine Lemasson, Marianne Lemoine-Goumard, Anne Le Pennec, Araceli Lopez-Martens, Benoit Lott, Pierre-Etienne Macchi, Frédérique Marion, Jacques Marteau, Silvia Niccolai, Mathieu Perrin-Terrin, Guillaume Pignol, Vincent Poireau, Daniel Pomarède, Vivian Poulin, Laurent Serin, Justine Serrano, Yves Sirois, Olivier Sorlin, David Rousseau, Vincent Tatischeff, Teixeira, Ana M., Laurent Vacavant, Véronique Van Elewyck, Marco Zito, Fabian Zomer
Publikováno v:
Ursula Bassler. CNRS Editions, 2022, 9782271143808
HAL
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International audience; L’immensité de notre Univers ne cesse d’intriguer et de stimuler les imaginations.Pour mieux appréhender l’infiniment grand et l’histoire de l’Univers depuis ses tout premiers instants, il faut se tourner vers un a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1eef7732ff8e997e6d59558ff712f0f8
https://hal.in2p3.fr/in2p3-03967455
https://hal.in2p3.fr/in2p3-03967455
Publikováno v:
Physical Review D. 106
We update cosmological constraints on two decaying dark matter models in light of BOSS-DR12 data analyzed under the Effective Field Theory of Large-Scale Structures (EFTofLSS) formalism, together with Planck, Pantheon and other BOSS measurements of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b219708e79612c8cc77f6f878c576f6
https://doi.org/10.1103/physrevd.106.023516
https://doi.org/10.1103/physrevd.106.023516
Autor:
Vivian POULIN
Publikováno v:
Nature Astronomy. 6:1347-1348
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2de801bb2008041817717248700428de
https://doi.org/10.1038/s41550-022-01853-2
https://doi.org/10.1038/s41550-022-01853-2