Search Publications
Cosmological constraints on neutrinos after BICEP2
Zhang, Jing-Fei; Zhang, Xin; Li, Yun-He
Since the B-mode polarization of the cosmic microwave background (CMB) was detected by the BICEP2 experiment and an unexpectedly large tensor-to-scalar ratio,
Constraints on the cosmological parameters from BICEP2, Planck, and WMAP
Cheng, Cheng; Huang, Qing-Guo
In this paper we constrain the cosmological parameters, in particular the tilt of tensor power spectrum, by adopting Background Imaging of Cosmic Extragalactic Polarization (B2), Planck released in 2013 and Wilkinson Microwaves Anisotropy Probe 9-year Polarization data. We find that a blue tilted tensor power spectrum is preferred at more than