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Recent Cosmic Microwave Background (CMB) temperature and polarization anisotropy measurements from the Planck mission have significantly improved previous constraints on the neutrino masses as well as the bounds on extended models with…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-20 Eleonora Di Valentino , Elena Giusarma , Olga Mena , Alessandro Melchiorri , Joseph Silk

We forecast constraints on cosmological parameters with primary CMB anisotropy information and weak lensing reconstruction with a future post-Planck CMB experiment, the Cosmic Origins Explorer (COrE), using oscillation data on the neutrino…

Cosmology and Nongalactic Astrophysics · Physics 2012-09-04 Alex C. Hall , Anthony Challinor

Present cosmological observations yield an upper bound on the neutrino mass which is significantly stronger than laboratory bounds. However, the exact value of the cosmological bound is model dependent and therefore less robust. Here, I…

High Energy Physics - Phenomenology · Physics 2011-09-13 Steen Hannestad

We present a fast Markov Chain Monte-Carlo exploration of cosmological parameter space. We perform a joint analysis of results from recent CMB experiments and provide parameter constraints, including sigma_8, from the CMB independent of…

Astrophysics · Physics 2008-11-26 Antony Lewis , Sarah Bridle

We present a showcase for deriving bounds on the neutrino masses from laboratory experiments and cosmological observations. We compare the frequentist and Bayesian bounds on the effective electron neutrino mass m_beta which the KATRIN…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ole Host , Ofer Lahav , Filipe B. Abdalla , Klaus Eitel

The cosmic microwave background (CMB) has proven to be an invaluable tool for studying the properties and interactions of neutrinos, providing insight not only into the sum of neutrino masses but also the free streaming nature of neutrinos…

High Energy Physics - Phenomenology · Physics 2023-09-07 Stefan Sandner , Miguel Escudero , Samuel J. Witte

Neutrinos can play an important role in the evolution of the Universe, modifying some of the cosmological observables. In this contribution we summarize the main aspects of cosmological relic neutrinos and we describe how the precision of…

High Energy Physics - Phenomenology · Physics 2012-12-27 Julien Lesgourgues , Sergio Pastor

Cosmological data have provided new constraints on the number of neutrino species and the neutrino mass. However these constraints depend on assumptions related to the underlying cosmology. Since a correlation is expected between the number…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Aaron Smith , Maria Archidiacono , Asantha Cooray , Francesco De Bernardis , Alessandro Melchiorri , Joseph Smidt

We provide constraints on the accuracy with which the neutrino mass fraction, $f_{\nu}$, can be estimated when exploiting measurements of redshift-space distortions, describing in particular how the error on neutrino mass depends on three…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-17 Fernanda Petracca , Federico Marulli , Lauro Moscardini , Andrea Cimatti , Carmelita Carbone , Raul E. Angulo

We investigate the observational constraints on the cosmic neutrino background (CNB) given by the extended $\Lambda$CDM scenario ($\Lambda$CDM $+ N_{\rm eff} + \sum m_{\nu} + c^2_{\rm eff} + c^2_{\rm vis} + \xi_{\nu}$) using the latest…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-27 Rafael C. Nunes , Alexander Bonilla

Although cosmic microwave background (CMB) is the most powerful cosmological probe of neutrino masses, it is in trouble with local direct measurements of $H_0$, which is called the $H_0$ tension. Since neutrino masses are correlated with…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-28 Toyokazu Sekiguchi , Tomo Takahashi

Using the latest observational data from Planck-CMB and its combination with the pre-reconstructed full-shape (FS) galaxy power spectrum measurements from the BOSS DR12 sample and eBOSS LRG DR16 sample, we report the observational…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-24 Suresh Kumar , Rafael C. Nunes , Priya Yadav

Even though neutrinos and antineutrinos are everywhere in the Universe, their critical importance might be overlooked, especially because that at least one species of neutrinos has the mass 0.058 eV, far larger than the cosmic…

High Energy Physics - Phenomenology · Physics 2016-01-14 W-Y. Pauchy Hwang

Recent cosmological analyses based on DESI and CMB data have revealed a tension between the inferred sum of neutrino masses and the minimum value allowed by neutrino oscillation experiments, when assuming an underlying $\Lambda$CDM model of…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-21 Cihad Kıbrıs , Willem Elbers , Özgür Akarsu , Eleonora Di Valentino

The baryon acoustic oscillation (BAO) analysis from the first year of data from the Dark Energy Spectroscopic Instrument (DESI), when combined with data from the cosmic microwave background (CMB), has placed an upper-limit on the sum of…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-27 Nathaniel Craig , Daniel Green , Joel Meyers , Surjeet Rajendran

We derive upper limits on the sum of neutrino masses from an updated combination of data from Cosmic Microwave Background experiments and Galaxy Redshifts Surveys. The results are discussed in the context of three-flavor neutrino mixing and…

Astrophysics · Physics 2009-10-07 A. Melchiorri , G. L. Fogli , E. Lisi , A. Marrone , A. Palazzo , P. Serra , J. I. Silk

We investigate impacts of massive neutrinos on the cosmic velocity fields, employing high-resolution cosmological $N$-body simulations provided by the information-optimized CUBE code, where cosmic neutrinos are evolved using collisionless…

Cosmology and Nongalactic Astrophysics · Physics 2022-03-08 Shuren Zhou , Zhenjie Liu , Qinglin Ma , Yu Liu , Le Zhang , Xiao-Dong Li , Yang Wang , Xin Wang , Yu Yu , Hao-Ran Yu , Yi Zheng

The expected sensitivity of cluster SZ number counts to neutrino mass in the sub-eV range is assessed. We find that from the ongoing {\it Planck}/SZ measurements the (total) neutrino mass can be determined at a (1-sigma) precision of 0.06…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Yoel Rephaeli , Meir Shimon

It is known that there are AdS vacua obtained from compactifying the SM to 2 or 3 dimensions. The existence of such vacua depends on the value of neutrino masses through the Casimir effect. Using the Weak Gravity Conjecture, it has been…

High Energy Physics - Theory · Physics 2017-12-06 Luis E. Ibanez , Victor Martin-Lozano , Irene Valenzuela

We quantify the information content of the non-linear matter power spectrum, the halo mass function, and the void size function, using the Quijote $N$-body simulations. We find that these three statistics exhibit very different degeneracies…