306 citations · 2.5k across the 57 of their papers we have counts for
5 papers · 1 filter
CMB constraints on primordial black hole dark matter
Daniel Aloni, Kfir Blum, Raphael Flauger
We revisit cosmic microwave background (CMB) constraints on primordial black hole dark matter. Spectral distortion limits from COBE/FIRAS do not impose a relevant constraint. Planc…
O() Invariance of the Multi-Field Bounce
Kfir Blum, Masazumi Honda, Ryosuke Sato +2
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 tunnell…
Exotic colored scalars at the LHC
Kfir Blum, Aielet Efrati, Claudia Frugiuele +1
We study the phenomenology of exotic color-triplet scalar particles with charge and . If is a non-singlet of representation, mass…
Self-consistent Calculation of the Sommerfeld Enhancement
Kfir Blum, Ryosuke Sato, Tracy R. Slatyer
A calculation of the Sommerfeld enhancement is presented and applied to the problem of s-wave non-relativistic dark matter annihilation. The difference from previous computations i…
Neutrino Signal of Collapse-Induced Thermonuclear Supernovae: The Case for Prompt Black Hole Formation in SN1987A
Kfir Blum, Doron Kushnir
Collapse-induced thermonuclear explosion (CITE) may explain core-collapse supernovae (CCSNe). We present a preliminary analysis of the neutrino signal predicted by CITE and compare…