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Related papers: Small scales structures and neutrino masses

200 papers

We explore the effect of massive neutrinos on the weak lensing shear bispectrum using the Cosmological Massive Neutrino Simulations. We find that the primary effect of massive neutrinos is to suppress the amplitude of the bispectrum with…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-05 William R. Coulton , Jia Liu , Mathew S. Madhavacheril , Vanessa Böhm , David N. Spergel

The effect of massive neutrinos on matter power spectrum is discussed in the context of $f(R)$ gravity. It is shown that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by free…

Cosmology and Nongalactic Astrophysics · Physics 2010-10-27 Hayato Motohashi , Alexei A. Starobinsky , Jun'ichi Yokoyama

Do void statistics contain information beyond the tracer 2-point correlation function? Yes! As we vary the sum of the neutrino masses, we find void statistics contain information absent when using just tracer 2-point statistics. Massive…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-24 Christina D. Kreisch , Alice Pisani , Carmelita Carbone , Jia Liu , Adam J. Hawken , Elena Massara , David N. Spergel , Benjamin D. Wandelt

The bounds on neutrino masses and mixing that follows from the data on light element abundances, large scale structure formation, and angular fluctuations of cosmic microwave background radiation are analyzed. The role of neutrino…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. D. Dolgov

We present the first simulation capable of resolving the structure of neutrino clustering on Mpc scales. The method combines grid- and particle-based methods and achieves very good accuracy on both small and large scales, while keeping CPU…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Jacob Brandbyge , Steen Hannestad

Majoron models provide neutrino masses via the spontaneous breaking of a global $U(1)$ symmetry. However, it may be argued that all global symmetries will be explicitly violated by gravitational effects. We show that it is possible to…

High Energy Physics - Phenomenology · Physics 2011-05-12 K. S. Babu , I. Z. Rothstein , D. Seckel

We review bounds on neutrino properties, in particular on their masses, coming mostly from cosmology, and also from astrophysics.

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Gelmini

Massive neutrinos are expected to affect the large-scale structure formation, including the major component of solid substances, dark matter halos. How halos are influenced by neutrinos is vital and interesting, and angular momentum (AM) as…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-20 Yu Chen , Chang-Zhi Lu , Yu Lu , Tingting Zhang , Tong-Jie Zhang

Relic neutrinos play an important role in the evolution of the Universe, modifying some of the cosmological observables. We summarize the main aspects of cosmological neutrinos and describe how the precision of present cosmological data can…

High Energy Physics - Phenomenology · Physics 2014-06-09 Julien Lesgourgues , Sergio Pastor

The experimental and astrophysical status of neutrino masses is reviewed with an emphasis on the cosmologically interesting regime.

High Energy Physics - Phenomenology · Physics 2007-05-23 Georg G. Raffelt

The presence of light (m_a ~ 10^-6 ev) scalar fields in the early universe can modify the cosmology of neutrinos considerably by allowing their masses to vary on cosmological times. In this paper, we consider the effect of Planck-suppressed…

High Energy Physics - Phenomenology · Physics 2009-11-11 Neal Weiner , Kathryn Zurek

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 observational and theoretical status of neutrino oscillations in connection with solar and atmospheric neutrino anomalies is presented in brief. The effect of neutrino oscillations on the early Universe evolution is discussed in detail.…

Astrophysics · Physics 2009-11-10 D. P. Kirilova

Massive neutrinos were the first proposed, and remain the most natural, particle candidate for the dark matter. In the absence of firm laboratory evidence for neutrino mass, considerations of the formation of large scale structure in the…

High Energy Physics - Phenomenology · Physics 2011-02-16 Subir Sarkar

Present limits on neutrino masses are briefly reviewed, along with cosmological and astrophysical hints from dark matter, solar and atmospheric neutrino observations that suggest neutrino masses. These would imply many possible new…

High Energy Physics - Phenomenology · Physics 2009-09-25 JosÉ W. F. Valle

The power spectrum has been a workhorse for cosmological studies of large-scale structure. However, the present-day matter distribution is highly non-Gaussian and significant cosmological information is also contained in higher-order…

Cosmology and Nongalactic Astrophysics · Physics 2023-05-08 Victoria Yankelevich , Ian G. McCarthy , Juliana Kwan , Sam G. Stafford , Jia Liu

The significance of light massive neutrinos as hot dark matter is outlined. The power of neutrino oscillation experiments with respect to detect such neutrinos in the eV-region is discussed. Present hints for neutrino oscillations in solar,…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Zuber

Cosmological probes are steadily reducing the total neutrino mass window, resulting in constraints on the neutrino-mass degeneracy as the most significant outcome. In this work we explore the discovery potential of cosmological probes to…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 Raul Jimenez , Thomas Kitching , Carlos Pena-Garay , Licia Verde

We briefly review the recent developments in neutrino physics and astrophysics which have import for frontline research in nuclear physics. These developments, we argue, tie nuclear physics to exciting developments in observational…

Nuclear Theory · Physics 2015-06-15 A. B. Balantekin , G. M. Fuller

Cosmological observations have in the past few years become an increasingly powerful method for determining parameters within the neutrino sector, such as the presence of sterile states and the mass of neutrinos. I review the current status…

Astrophysics · Physics 2007-05-23 Steen Hannestad