Abstract
We investigate how much the constraints on the neutrino properties can be improvedby combining the CMB, the photometric and spectroscopic galaxyredshift surveys which include the CMB lensing, galaxy lensingtomography, galaxy clustering and redshift space distortion observables. We pay a particular attention to the constraint onthe neutrino mass in view of the forthcoming redshift surveys such asthe Euclid satellite and the LSST survey along with the Planck CMB lensing measurements.Combining the transverse mode information from the angular powerspectrum and the longitudinal mode information from the spectroscopic survey with the redshiftspace distortion measurements can determine the total neutrino masswith the projected error of \U0001d4aa(0.02) eV.Ouranalysis fixes the mass splittings among the neutrino species to beconsistent with the neutrino oscillation data, and we accordingly study thesensitivity of our parameter estimations on the minimal neutrino mass. Thecosmological measurement of the total neutrino mass can distinguishbetween the normal and inverted mass hierarchy scenarios if the minimalneutrino mass ≲0.005 eV with the predicted 1–σuncertainties taken into account.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
