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There is a puzzling contradiction: direct observations favor a low-mass density universe, but the only model which fits universe structure over more than three orders of magnitude in distance scale has a mix of hot (neutrino) and cold dark…

High Energy Physics - Phenomenology · Physics 2007-05-23 David O. Caldwell

Cosmology provides an excellent laboratory for testing various aspects of neutrino physics. Here, I review the current status of cosmological searches for neutrino mass, as well as other properties of neutrinos. Future cosmological probes…

High Energy Physics - Phenomenology · Physics 2010-10-27 Steen Hannestad

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…

The existence of a cosmic neutrino background has been inferred indirectly from cosmological surveys through its effect on the linear-theory evolution of primordial density perturbations, as well as from measurements of the primordial…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-17 Selim C. Hotinli , Nashwan Sabti , Jaxon North , Marc Kamionkowski

New effects related to refraction of neutrinos in different media are reviewed and implication of the effects to neutrino mass and mixing are discussed. Patterns of neutrino masses and mixing implied by existing hints/bounds are described.…

High Energy Physics - Phenomenology · Physics 2008-02-03 Alexei Yu. Smirnov

While the mass differences between neutrino mass states are known, their absolute masses and mass hierarchy have not yet been determined. Determining the mass of neutrinos provides access to physics beyond the Standard Model and the…

Cold dark matter halos form within a smoothly distributed background of relic neutrinos -- at least some of which are massive and non-relativistic at late times. We calculate the accumulation of massive neutrinos around spherically…

Cosmology and Nongalactic Astrophysics · Physics 2014-06-05 Marilena LoVerde , Matias Zaldarriaga

We review the prospects for probing new physics with neutrino astrophysics. High energy neutrinos provide an important means of accessing physics beyond the electroweak scale. Neutrinos have a number of advantages over conventional…

High Energy Physics - Phenomenology · Physics 2008-12-18 Nicole F. Bell

Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses. We extend the framework of the halo model of cosmological nonlinear matter clustering to include the effect of massive neutrino infall…

Astrophysics · Physics 2008-11-26 Kevork Abazajian , Eric R. Switzer , Scott Dodelson , Katrin Heitmann , Salman Habib

While it is established that the effect of neutrinos on the evolution of cosmic structure is small, the upper limits derived from large-scale structure could help significantly to constrain the absolute scale of the neutrino masses. Current…

Astrophysics · Physics 2008-11-26 Ofer Lahav , Oystein Elgaroy

Cosmological observations are a powerful probe of neutrino properties, and in particular of their mass. In this review, we first discuss the role of neutrinos in shaping the cosmological evolution at both the background and perturbation…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-20 Massimiliano Lattanzi , Martina Gerbino

The next generation of cosmological surveys are expected to measure a non-zero sum of neutrino masses, even down to the minimum value of 58 meV inferred from neutrino flavor oscillation. The implications of such a measurement for the…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-02 Daniel Green , Joel Meyers

The origin of neutrino masses remains unknown. Both the vacuum mass and the dark mass generated by the neutrino interaction with dark matter (DM) particles or fields can fit the current oscillation data. The dark mass squared is…

High Energy Physics - Phenomenology · Physics 2024-10-25 Shao-Feng Ge , Chui-Fan Kong , Alexei Y. Smirnov

The emerging structure of the neutrino mass matrix, when combined with the primordial element abundances, places the most stringent constraint on the flavor asymmetries in the cosmological neutrino background and therefore its energy…

High Energy Physics - Phenomenology · Physics 2009-11-10 Kevork Abazajian

For a long time very little experimental information was available about neutrino properties, even though a minute neutrino mass has intriguing cosmological and astrophysical implications. This situation has changed in recent decades:…

Nuclear Theory · Physics 2017-03-29 A. B. Balantekin

In this paper, it is shown that $N$naturalness scenarios share the intrinsic mechanism to suppress neutrino masses with other infrared neutrino mass models. In such models like extra-dimensional theories or many species theories, the large…

High Energy Physics - Phenomenology · Physics 2026-04-24 Manuel Ettengruber

A nearby supernova will carry an unprecedented wealth of information about astrophysics, nuclear physics, and particle physics. Because supernova are fundamentally neutrino driven phenomenon, our knowledge about neutrinos -- particles that…

High Energy Physics - Phenomenology · Physics 2025-05-06 Peter B. Denton , Yves Kini

Cosmic voids offer an extraordinary opportunity to study the effects of massive neutrinos on cosmological scales. Because they are freely streaming, neutrinos can penetrate the interior of voids more easily than cold dark matter or baryons,…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-10 Nico Schuster , Nico Hamaus , Alice Pisani , Carmelita Carbone , Christina D. Kreisch , Giorgia Pollina , Jochen Weller

The case for small neutrino mass differences from atmospheric and solar neutrino oscillation experiments has become compelling, but leaves the overall neutrino mass scale m_nu undetermined. The most restrictive limit of m_nu < 0.8 eV arises…

Astrophysics · Physics 2009-11-07 G. G. Raffelt

Precision cosmology enables to test fundamental physics, including neutrino properties, with unprecedented accuracy. In this work, I review the basics of neutrino cosmology. I briefly describe how neutrinos affect cosmological observables,…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-02 Martina Gerbino