Dr
Massimiliano Lattanzi
(Dipartimento di Fisica e Scienze della Terra - Università di Ferrara)
09/09/2013, 14:00
Cosmology
Oral
Observations of the cosmic microwave background (CMB) have the potential to constrain the properties of relic neutrinos, and possibly of additional light relic particles in the Universe. In my talk I will present the constraints on the mass of the three Standard Model neutrinos and on the density of massless relics that can be obtained using the recent observations of the CMB temperature...
Dr
Ninetta Saviano
(DESY)
09/09/2013, 14:20
Cosmology
Oral
In recent years a renewed attention has been devoted to low-mass sterile neutrinos, after intriguing but controversial hints coming from precision cosmological measurements and laboratory oscillation experiments. Light sterile neutrinos can be produced by oscillations with active neutrinos in the early universe. Their properties can be constrained by their contribution as extra-radiation,...
Prof.
Brian Keating
(UC San Diego)
09/09/2013, 14:40
Cosmology
Oral
Cosmic Microwave Background (CMB) polarization experiments have the potential to reveal evidence for the universe's initial conditions via a detection of, or constraint on, the CMB's large-scale B-mode (curl-mode) polarization pattern. In addition to constraints on inflationary gravitational waves, CMB polarization experiments will also inform our understanding of fundamental physics via...
Prof.
Chao-Lin Kuo
(Stanford University/SLAC)
09/09/2013, 15:00
Cosmology
Oral
The CMB community is getting behind a next generation CMB polarization experiment that will survey a large fraction of the sky with arcminute resolution. One of the most important goals of this "Stage-IV" CMB experiment is to produce high s/n measurements of matter distributions and detect the signatures of neutrino masses with high significance. I will discuss the potential sensitivity and...
Prof.
Gary Steigman
(The Ohio State University)
09/09/2013, 15:20
Cosmology
Oral
The presence of light WIMPs modifies the early Universe energy and entropy densities, changing the early evolution of the Universe as probed, for example, by the cosmic microwave background radiation (CMB) and big bang nucleosynthesis (BBN). For observables related to BBN and the CMB, there are degeneracies among the WIMP mass (mχ), the number of equivalent neutrinos (ΔNν), the effective...
