Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Samuel D. McDermott"'
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-48 (2021)
Abstract The core-cusp problem persists as an unresolved tension between the pre- dictions of ΛCDM cosmology and observations of dark matter (DM) profiles in dwarf spheroidal and other galaxies. We present a novel scenario for converting cusps into
Externí odkaz:
https://doaj.org/article/c450b9b3759e4d868b2a933ffff04200
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-28 (2021)
Abstract New light particles produced in supernovae can lead to additional energy loss and a consequent deficit in neutrino production in conflict with the neutrinos observed from Supernova 1987A (SN1987A). Contrary to the majority of previous SN1987
Externí odkaz:
https://doaj.org/article/035c0639165948d5a94f62ef7bc28a74
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 2019, Iss 8, Pp 1-20 (2019)
Abstract If even a relatively small number of black holes were created in the early universe, they will constitute an increasingly large fraction of the total energy density as space expands. It is thus well-motivated to consider scenarios in which t
Externí odkaz:
https://doaj.org/article/d775d44a229c43b7adb04e50f3849a8d
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 9, Pp 1-45 (2018)
Abstract We consider the constraints from Supernova 1987A on particles with small couplings to the Standard Model. We discuss a model with a fermion coupled to a dark photon, with various mass relations in the dark sector; millicharged particles; dar
Externí odkaz:
https://doaj.org/article/1eeed5fa2c4847b29cf480de77a494fd
Publikováno v:
Physics Letters B, Vol 755, Iss , Pp 353-357 (2016)
ATLAS and CMS recently released the first results of searches for diphoton resonances in 13 TeV data, revealing a modest excess at an invariant mass of approximately 750 GeV. We find that it is generically possible that a singlet scalar resonance is
Externí odkaz:
https://doaj.org/article/697445e9e1654a54807b2494c628cf79
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 522:L21-L25
The characteristics of the galactic centre excess (GCE) emission observed in gamma-ray energies – especially the morphology of the GCE – remain a hotly debated subject. The manner in which the dominant diffuse gamma-ray background is modelled has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ed6ffd55bb75a3f88df0771b54c32f4
https://doi.org/10.1093/mnrasl/slad035
https://doi.org/10.1093/mnrasl/slad035
Autor:
Kimberly K. Boddy, Mariangela Lisanti, Samuel D. McDermott, Nicholas L. Rodd, Christoph Weniger, Yacine Ali-Haïmoud, Malte Buschmann, Ilias Cholis, Djuna Croon, Adrienne L. Erickcek, Vera Gluscevic, Rebecca K. Leane, Siddharth Mishra-Sharma, Julian B. Muñoz, Ethan O. Nadler, Priyamvada Natarajan, Adrian Price-Whelan, Simona Vegetti, Samuel J. Witte
Publikováno v:
Journal of High Energy Astrophysics, 35, 112-138. Elsevier
Journal of High Energy Astrophysics, 2022, Vol.35 [Peer Reviewed Journal]
Journal of High Energy Astrophysics, 2022, Vol.35 [Peer Reviewed Journal]
While astrophysical and cosmological probes provide a remarkably precise and consistent picture of the quantity and general properties of dark matter, its fundamental nature remains one of the most significant open questions in physics. Obtaining a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa42f900d1c5d23f93d09b574dc980a9
https://dare.uva.nl/personal/pure/en/publications/snowmass2021-theory-frontier-white-paper(bca783f4-b34e-4c62-9a60-3bebad5a31c8).html
https://dare.uva.nl/personal/pure/en/publications/snowmass2021-theory-frontier-white-paper(bca783f4-b34e-4c62-9a60-3bebad5a31c8).html
Publikováno v:
Physical Review
Aromatic organic compounds, because of their small excitation energies ~ O(few eV) and scintillating properties, are promising targets for detecting dark matter of mass ~ O(few MeV). Additionally, their planar molecular structures lead to large aniso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed6b49d0f56844765b9496374f1596e1
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physical Review
Dark matter (DM) with a mass below a few keV must have a phase space distribution that differs substantially from the Standard Model particle thermal phase space: otherwise, it will free stream out of cosmic structures as they form. We observe that f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c363edb746bd8d4129fce9831d2d33f9
http://arxiv.org/abs/2108.02785
http://arxiv.org/abs/2108.02785