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Title: Probing neutrino masses with CMB lensing extraction

Abstract

We evaluate the ability of future cosmic microwave background (CMB) experiments to measure the power spectrum of large scale structure using quadratic estimators of the weak lensing deflection field. We calculate the sensitivity of upcoming CMB experiments such as BICEP, QUaD, BRAIN, ClOVER and Planck to the nonzero total neutrino mass M{sub {nu}} indicated by current neutrino oscillation data. We find that these experiments greatly benefit from lensing extraction techniques, improving their one-sigma sensitivity to M{sub {nu}} by a factor of order four. The combination of data from Planck and the SAMPAN mini-satellite project would lead to {sigma}(M{sub {nu}}){approx}0.1 eV, while a value as small as {sigma}(M{sub {nu}}){approx}0.035 eV is within the reach of a space mission based on bolometers with a passively cooled 3-4 m aperture telescope, representative of the most ambitious projects currently under investigation. We show that our results are robust not only considering possible difficulties in subtracting astrophysical foregrounds from the primary CMB signal but also when the minimal cosmological model ({lambda} Mixed Dark Matter) is generalized in order to include a possible scalar tilt running, a constant equation-of-state parameter for the dark energy and/or extra relativistic degrees of freedom.

Authors:
; ; ;  [1];  [2]
  1. Laboratoire de Physique Theorique LAPTH, CNRS-Universite de Savoie, B.P. 110, F-74941 Annecy-le-Vieux Cedex (France) and Instituto de Fisica Corpuscular, CSIC-Universitat de Valencia, Ed. Institutos de Investigacion, Apdo. 22085, E-46071 Valencia (Spain)
  2. (APC), College de France, 11 place Marcelin Berthelot, F-75231 Paris Cedex 05 (France)
Publication Date:
OSTI Identifier:
20776793
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevD.73.045021; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APERTURES; BOLOMETERS; COSMIC RADIATION; COSMOLOGICAL MODELS; COSMOLOGY; DEGREES OF FREEDOM; ENERGY SPECTRA; EQUATIONS OF STATE; EV RANGE; GALAXY CLUSTERS; NEUTRINO OSCILLATION; NEUTRINOS; NONLUMINOUS MATTER; RADIOWAVE RADIATION; RELATIVISTIC RANGE; RELICT RADIATION; REST MASS; SCALARS; SENSITIVITY

Citation Formats

Lesgourgues, Julien, Perotto, Laurence, Pastor, Sergio, Piat, Michel, and Astroparticule et Cosmologie. Probing neutrino masses with CMB lensing extraction. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.045021.
Lesgourgues, Julien, Perotto, Laurence, Pastor, Sergio, Piat, Michel, & Astroparticule et Cosmologie. Probing neutrino masses with CMB lensing extraction. United States. doi:10.1103/PhysRevD.73.045021.
Lesgourgues, Julien, Perotto, Laurence, Pastor, Sergio, Piat, Michel, and Astroparticule et Cosmologie. Wed . "Probing neutrino masses with CMB lensing extraction". United States. doi:10.1103/PhysRevD.73.045021.
@article{osti_20776793,
title = {Probing neutrino masses with CMB lensing extraction},
author = {Lesgourgues, Julien and Perotto, Laurence and Pastor, Sergio and Piat, Michel and Astroparticule et Cosmologie},
abstractNote = {We evaluate the ability of future cosmic microwave background (CMB) experiments to measure the power spectrum of large scale structure using quadratic estimators of the weak lensing deflection field. We calculate the sensitivity of upcoming CMB experiments such as BICEP, QUaD, BRAIN, ClOVER and Planck to the nonzero total neutrino mass M{sub {nu}} indicated by current neutrino oscillation data. We find that these experiments greatly benefit from lensing extraction techniques, improving their one-sigma sensitivity to M{sub {nu}} by a factor of order four. The combination of data from Planck and the SAMPAN mini-satellite project would lead to {sigma}(M{sub {nu}}){approx}0.1 eV, while a value as small as {sigma}(M{sub {nu}}){approx}0.035 eV is within the reach of a space mission based on bolometers with a passively cooled 3-4 m aperture telescope, representative of the most ambitious projects currently under investigation. We show that our results are robust not only considering possible difficulties in subtracting astrophysical foregrounds from the primary CMB signal but also when the minimal cosmological model ({lambda} Mixed Dark Matter) is generalized in order to include a possible scalar tilt running, a constant equation-of-state parameter for the dark energy and/or extra relativistic degrees of freedom.},
doi = {10.1103/PhysRevD.73.045021},
journal = {Physical Review. D, Particles Fields},
number = 4,
volume = 73,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2006},
month = {Wed Feb 15 00:00:00 EST 2006}
}