Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Kfir Blum"'
Publikováno v:
Physics Letters B, Vol 785, Iss , Pp 354-361 (2018)
Searches for neutrino-less double-beta decay (0ν2β) place an important constraint on models where light fields beyond the Standard Model participate in the neutrino mass mechanism. While 0ν2β experimental collaborations often consider various mas
Externí odkaz:
https://doaj.org/article/fb88ca3480b84c1aa57b1f4331f73fa3
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 5, Pp 1-11 (2017)
Abstract In his 1977 paper on vacuum decay in field theory: The Fate of the False Vacuum, Coleman considered the problem of a single scalar field and assumed that the minimum action tunnelling field configuration, the bounce, is invariant under O(4)
Externí odkaz:
https://doaj.org/article/bfd0093d18cc4244b63b73ac5b0e496b
Publikováno v:
Physics Letters B, Vol 737, Iss C, Pp 30-33 (2014)
We show that Big Bang Nucleosynthesis (BBN) significantly constrains axion-like dark matter. The axion acts like an oscillating QCD θ angle that redshifts in the early Universe, increasing the neutron–proton mass difference at neutron freeze-out.
Externí odkaz:
https://doaj.org/article/9d5ff0d164834e48a932352a6474dbd5
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-1 (2017)
Externí odkaz:
https://doaj.org/article/9b1691b5d9414ed6b734ed5e3e307ba4
Ultra-diffuse galaxies that contain a large sample of globular clusters (GCs) offer an opportunity to test the predictions of galactic dynamics theory. NGC5846-UDG1 is an excellent example, with a high-quality sample of dozens of GC candidates. We sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::871599acdf5e524c7096a6f585ffd18e
Autor:
Kfir Blum, Luca Teodori
Publikováno v:
Physical Review D. 104
Gravitational lensing time delays offer an avenue to measure the Hubble parameter $H_0$, with some analyses suggesting a tension with early-type probes of $H_0$. The lensing measurements must mitigate systematic uncertainties due to the mass modellin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40ce34d41653ac8f934db785aca714ec
https://doi.org/10.1103/physrevd.104.123011
https://doi.org/10.1103/physrevd.104.123011
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2022:027
We make a number of comments regarding modeling degeneracies in strong lensing measurements of the Hubble parameter $H_0$. The first point concerns the impact of weak lensing associated with different segments of the line of sight. We show that exter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92edde52f0a685a211cdcfb5912be358
https://doi.org/10.1088/1475-7516/2022/07/027
https://doi.org/10.1088/1475-7516/2022/07/027
Publikováno v:
Physical Review C. 103
The origin of weakly-bound nuclear clusters in hadronic collisions is a key question to be addressed by heavy-ion collision (HIC) experiments. The measured yields of clusters are approximately consistent with expectations from phenomenological statis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d65e08bdc16ceb9d78bf2f6ee6b8de
https://doi.org/10.1103/physrevc.103.014907
https://doi.org/10.1103/physrevc.103.014907
Publikováno v:
Physical review / D 104(4), 043021 (2021). doi:10.1103/PhysRevD.104.043021
Physical review / D 104(4), 043021 (2021). doi:10.1103/PhysRevD.104.043021
We investigate what the orbits of globular clusters (GCs) in the Fornax dwarf spheroidal (dSph) galaxy can teach us about dark matter (DM). This problem was recently stud
We investigate what the orbits of globular clusters (GCs) in the Fornax dwarf spheroidal (dSph) galaxy can teach us about dark matter (DM). This problem was recently stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d58fc2f9fe6ed87974b5dc7fe10d6992
Publikováno v:
Physical Review
We look for and place observational constraints on the imprint of ultralight dark matter (ULDM) soliton cores in rotation-dominated galaxies. Extending previous analyses, we find a conservative constraint which disfavors the soliton-host halo relatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::641ae5788c14f7cace33af9ffcfb0240