306 citations · 2.5k across the 57 of their papers we have counts for
4 papers · 1 filter
An Ultimate Target for Dark Matter Searches
Kfir Blum, Yanou Cui, Marc Kamionkowski
The combination of S-matrix unitarity and the dynamics of thermal freeze-out for massive relic particles (denoted here simply by WIMPs) implies a lower limit on the density of such…
WIMP Dark Matter through the Dilaton Portal
Kfir Blum, Mathieu Cliche, Csaba Csaki +1
We study a model in which dark matter couples to the Standard Model through a dilaton of a sector with spontaneously broken approximate scale invariance. Scale invariance fixes the…
High energy neutrino telescopes as a probe of the neutrino mass mechanism
Kfir Blum, Anson Hook, Kohta Murase
We show that measurements of the spectral shape and flavor ratios of high energy astrophysical neutrinos at neutrino telescopes can be sensitive to the details of the neutrino mass…
Constraining Axion Dark Matter with Big Bang Nucleosynthesis
Kfir Blum, Raffaele Tito D'Agnolo, Mariangela Lisanti +1
We show that Big Bang Nucleosynthesis (BBN) significantly constrains axion-like dark matter. The axion acts like an oscillating QCD angle that redshifts in the early universe,…