Determining Neutrino Mass from the Cosmic Microwave Background Alone

2003/03/31 by Manoj Kaplinghat, Lloyd Knox, Yong‐Seon Song +1 · 11 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Cosmology and Gravitation Theories #Neutrino Physics Research #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevlett.91.241301

published as Phys.Rev.Lett.91:241301,2003 · 4 pages, 1 figure; Version accepted for publication in PRL

arxiv created 2003/10/21 · openalex publication_date 2003/12/10 · arxiv updated 2010/04/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

Distortions of cosmic microwave background temperature and polarization maps caused by gravitational lensing, observable with high angular resolution and high sensitivity, can be used to measure the neutrino mass. Assuming two massless species and one with mass m_\ensuremathν, we forecast \ensuremathσ(m_\ensuremathν)=0.15 eV from the Planck satellite and \ensuremathσ(m_\ensuremathν)=0.04 eV from observations with twice the angular resolution and \ensuremath∼20 times the sensitivity. A detection is likely at this higher sensitivity since the observation of atmospheric neutrino oscillations requires \ensuremathΔm_\ensuremathν²\ensuremath\gtrsim(0.04 eV)².

Citations

• Signature of Gravity Waves in the Polarization of the Microwave Background
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Limit on the Detectability of the Energy Scale of Inflation
• Weighing Neutrinos with Galaxy Surveys
• Power Spectrum Tomography with Weak Lensing

Cited by

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• Inflation models and observation
• Neutrino Mass Bounds in the Era of Tension Cosmology
• Probing neutrino masses with CMB lensing extraction
• Statistical determination of bulk flow motions
• Neutrino Masses and the Dark Energy Equation of State:Relaxing the Cosmological Neutrino Mass Bound
• Planck2013 results. XVI. Cosmological parameters
• First light and reionization: A conference summary