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We point out that ultralight scalar dark matter that modulates neutrino masses can be significantly thermal damped by cosmic neutrinos in the early universe. This dissipative effect arises as a backreaction from the neutrinos which are…

High Energy Physics - Phenomenology · Physics 2025-10-01 Abhishek Banerjee , Ngan H. Nguyen , Erwin H. Tanin

I introduce the consequences of neutrino mass and mixing in the dense environments of the early Universe and in astrophysical environments. Thermal and matter effects are reviewed in the context of a two-neutrino formalism, with methods of…

High Energy Physics - Phenomenology · Physics 2021-03-25 Kevork N. Abazajian

The question of neutrino mass is one of the major riddles in particle physics. Recently, strong evidence that neutrinos have nonzero masses has been found. While tiny, these masses could be large enough to contribute significantly to the…

High Energy Physics - Phenomenology · Physics 2008-12-18 Peter Fisher , Boris Kayser , Kevin S. McFarland

There is an accepted approach to calculation of the neutrino flavor density-matrix in the halo of a supernova, in which neutrino amplitudes, not cross-sections, need to be followed carefully in the region above the region of frequent…

High Energy Physics - Phenomenology · Physics 2021-03-25 R. F. Sawyer

Recent progress in neutrino physics has been rapid, to a large extent thanks to observations of neutrinos produced in astrophysical environments. Here, we review the current standing on such questions as neutrino masses and mixings,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Steen Hannestad

Cosmic voids are a promising environment to characterize neutrino-induced effects on the large-scale distribution of matter in the universe. We perform a comprehensive numerical study of the statistical properties of voids, identified both…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-18 Elena Massara , Francisco Villaescusa-Navarro , Matteo Viel , P. M. Sutter

Cosmological and astrophysical measurements provide powerful constraints on neutrino masses complementary to those from accelerators and reactors. Here we provide a guide to these different probes, for each explaining its physical basis,…

The non-zero mass of neutrinos suppresses the growth of cosmic structure on small scales. Since the level of suppression depends on the sum of the masses of the three active neutrino species, the evolution of large-scale structure is a…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-11 Jia Liu , Simeon Bird , José Manuel Zorrilla Matilla , J. Colin Hill , Zoltán Haiman , Mathew S. Madhavacheril , Andrea Petri , David N. Spergel

Solar, atmospheric and reactor neutrino experiments established that neutrinos are massive. It is quite natural then to consider neutrinos as candidate particles for explaining the dark matter in halos around galaxies. We study the…

High Energy Physics - Phenomenology · Physics 2015-06-04 A. Nicolaidis

Neutrino Oscillation, in which a given flavour of neutrino transforms into another is a powerful tool for probing small neutrino masses. The intrinsic neutrino properties involved are neutrino mass squared difference $\Delta m^2$ and the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Srubabati Goswami

New effects of nontrivial neutrino electromagnetic properties are investigated on the basis of exact solutions of the modified Dirac equations for neutrinos in dense magnetized rotating matter. The effect of spatial separation of different…

High Energy Physics - Phenomenology · Physics 2014-06-11 Alexander Studenikin , Ilya Tokarev

We have determined the dispersion relation of a neutrino test particle propagating in the cosmic neutrino background. Describing the relic neutrinos and antineutrinos from the hot big bang as a dense medium, a matter potential or refractive…

High Energy Physics - Phenomenology · Physics 2016-03-09 J. S. Diaz , F. R. Klinkhamer

Recent constrains on the sum of neutrino masses inferred by analyzing cosmological data, show that detecting a non-zero neutrino mass is within reach of forthcoming cosmological surveys, implying a direct determination of the absolute…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-15 Raul Jimenez , Carlos Pena-Garay , Licia Verde

I review the basics of neutrino cosmology, from the question of neutrino decoupling and the presence of sterile neutrinos to the effects of neutrinos on the cosmic microwave background and large scale structure. Particular emphasis is put…

Astrophysics · Physics 2009-11-13 Steen Hannestad

Cosmological limits on neutrino masses are softened, by more than a factor 2, if Cold Dark Matter (CDM) and Dark Energy (DE) are coupled. In turn, a neutrino mass yielding $\Omega_\nu$ up to $\sim0.20$ allows coupling levels $\beta \simeq…

Astrophysics · Physics 2010-04-15 G. La Vacca , S. A. Bonometto , L. P. L. Colombo

Recent developments in our understanding of neutrino masses and their implications for physics beyond the standard model are reviewed.

High Energy Physics - Phenomenology · Physics 2007-05-23 R. N. Mohapatra

Modern cosmological inference increasingly relies on differentiable models to enable efficient, gradient-based parameter estimation and uncertainty quantification. Here, we present a novel approach for predicting the abundance of dark…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-08 Jim Buisman , Florian List , Oliver Hahn

Dark matter (DM) annihilations in the Galaxy may produce high energy neutrinos, which can be detected by the neutrino telescopes, for example IceCube, ANTARES and Super-Kamiokande. The neutrinos can also arise from hadronic interaction…

Astrophysics · Physics 2009-11-13 Peng-fei Yin , Jia Liu , Qiang Yuan , Xiao-jun Bi , Shou-hua Zhu

Using the high-resolution HR-DEMNUni simulations, we computed neutrino profiles within virialized dark matter haloes. These new high-resolution simulations allowed us to revisit fitting formulas proposed in the literature and provided…

Cosmology and Nongalactic Astrophysics · Physics 2024-07-18 Beatriz Hernández-Molinero , Carmelita Carbone , Raul Jimenez , Carlos Peña Garay

The cosmic neutrino background is both a dramatic prediction of the hot Big Bang and a compelling target for current and future observations. The impact of relativistic neutrinos in the early universe has been observed at high significance…

High Energy Physics - Phenomenology · Physics 2021-12-08 Daniel Green , David E. Kaplan , Surjeet Rajendran
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