Ponente
Dr.
MASAYA HASEGAWA
(KEK)
Descripción
POLARBEAR-2 (PB-2) is a new receiver system that will be deployed
on the Simons Array telescope platform in early 2015 alongside the
current observing POLARBEAR-1 receiver for Cosmic Microwave
Background (CMB) polarization measurements. The science goals
of PB-2 are to characterize the B-mode (curl component)
signal both at large and small angular scales with unprecedented
precision. The polarization data on large angular scale can be used
for quantitative studies on inflation, such as the reconstruction of the energy
scale of inflation and the consistency relation of scalar and tensor
perturbations under the single-field slow-roll condition. The small angular
scale data are an excellent tracer of large-scale structure in the universe, and
can be used to constrain the sum of the neutrino masses. The projected
statistical error is 40 meV with PLANCK temperature data (90meV with PB-2
data alone). In this talk, we describe the scientific objectives, system
requirements, and instrument design. The status of receiver development will also be presented.
Autor primario
Dr.
MASAYA HASEGAWA
(KEK)
