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相关论文: Neutrinos and Future Concordance Cosmologies

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We discuss the prospects for high-energy neutrino astronomy to study particle physics in the energy regime comparable to and beyond that obtainable at the current and planned colliders. We describe the various signatures of high-energy…

高能物理 - 唯象学 · 物理学 2009-11-10 Tao Han , Dan Hooper

We investigate the cosmological dependence and the constraining power of large-scale galaxy correlations, including all redshift-distortions, wide-angle, lensing and gravitational potential effects on linear scales. We analyze the…

宇宙学与河外天体物理 · 物理学 2016-05-25 Alvise Raccanelli , Francesco Montanari , Daniele Bertacca , Olivier Doré , Ruth Durrer

New physics in the neutrino sector might be necessary to address anomalies between different neutrino oscillation experiments. Intriguingly, it also offers a possible solution to the discrepant cosmological measurements of $H_0$ and…

宇宙学与河外天体物理 · 物理学 2020-07-01 Christina D. Kreisch , Francis-Yan Cyr-Racine , Olivier Doré

Low-energy neutrinos from the cosmic background are captured by objects in the sky that contain material susceptible of single beta decay. Neutrons, which compose most of a neutron star, capture low-energy neutrinos from the cosmic neutrino…

宇宙学与河外天体物理 · 物理学 2025-03-12 Beatriz Hernandez-Molinero , Raul Jimenez , Carlos Peña Garay

In this essay we extend the standard discussion of neutrino oscillations to astrophysical neutrinos propagating through expanding space. This extension introduces a new cosmological parameter $I$ into the oscillation phase. The new…

宇宙学与河外天体物理 · 物理学 2015-05-27 D. J. Wagner , T. J. Weiler

We show that a mass-varying neutrino model driven by scalar field dark energy relaxes the existing upper bound on the current neutrino mass to ${\sum m_\nu < 0.72}$ eV. We extend the standard $\Lambda$ cold dark matter model by introducing…

宇宙学与河外天体物理 · 物理学 2024-04-16 Vitor da Fonseca , Tiago Barreiro , Nelson J. Nunes

Cosmology is undergoing an explosive period of activity, fueled both by new, accurate astrophysical data and by innovative theoretical developments. Cosmological parameters such as the total density of the Universe and the rate of…

天体物理学 · 物理学 2007-05-23 A. S. Sakharov , H. Hofer

Cosmic voids, the less dense patches of the Universe, are promising laboratories to extract cosmological information. Thanks to their unique low density character, voids are extremely sensitive to diffuse components such as neutrinos and…

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,…

高能物理 - 唯象学 · 物理学 2007-05-23 Steen Hannestad

Ultra-high energy neutrinos hold promise as cosmic messengers to advance the understanding of extreme astrophysical objects and environments as well as possible probes for discovering new physics. This proceeding describes the motivation…

高能天体物理现象 · 物理学 2019-01-10 James Madsen

The neutrino deficits observed in four solar neutrino experiments, relative to the theoretical predictions, have led to fresh insights into neutrino and solar physics. Neutrino emission from distant, energetic astronomical systems may form…

In order to facilitate the identification of possible new physics signatures in neutrino telescopes, such as neutrinos from the annihilation of neutralinos or decaying relics, it is essential to gain full control over the astrophysical…

天体物理学 · 物理学 2008-11-26 Karl Mannheim

Within the context of hot big-bang cosmology, a cosmic background of presently low energy neutrinos is predicted to exist in concert with the photons of the cosmic background radiation. The number density of the cosmological neutrinos is of…

宇宙学与河外天体物理 · 物理学 2022-04-01 Floyd W. Stecker

We discuss the cosmological degeneracy between the age of the Universe, the Hubble parameter and the effective number of relativistic particles N_eff. We show that independent determinations of the Hubble parameter H(z) as those recently…

天体物理学 · 物理学 2008-11-26 Francesco de Bernardis , Alessandro Melchiorri , Licia Verde , Raul Jimenez

The appearance of strangeness in the form of hyperons within the inner core of neutron stars is expected to affect its detectable properties such as its global structure or gravitational wave emission. In this work, we explore the parameter…

高能天体物理现象 · 物理学 2023-12-19 Suprovo Ghosh , Bikram Keshari Pradhan , Debarati Chatterjee , Jürgen Schaffner-Bielich

We use the high-resolution HR-DEMNUni simulations to compute cross-correlations of the Cosmic Neutrino Background quantities, like neutrino density, deflection angle, and velocity, with other quantities, like cold dark matter density and…

宇宙学与河外天体物理 · 物理学 2025-11-04 Beatriz Hernández-Molinero , Matteo Calabrese , Carmelita Carbone , Alessandro Greco , Raul Jimenez , Carlos Peña Garay

Recent measurements of a peak in the angular power spectrum of the cosmic microwave background appear to suggest that geometry of the universe is close to being flat. But if other accepted indicators of cosmological parameters are also…

天体物理学 · 物理学 2009-10-31 R. A. Battye , R. Crittenden , J. Weller

This article summarises a talk given at the 2014 Palermo workshop on Astrophysics. It covers a short review on the neutrino physics status and the potential physics opportunities of future experiments. During the last year our knowledge on…

高能物理 - 实验 · 物理学 2015-03-20 Thomas Strauss

We point out possible features of neutrino spectra from a future galactic core collapse supernova that will enhance our understanding of neutrino mixing as well as supernova astrophysics. We describe the neutrino flavor conversions inside…

高能物理 - 唯象学 · 物理学 2009-09-03 Amol Dighe

We update a previous investigation of cosmological effects of a non-standard interaction between neutrinos and dark matter. Parameterizing the elastic-scattering cross section between the two species as a function of the temperature of the…

宇宙学与河外天体物理 · 物理学 2012-01-04 P. Serra , F. Zalamea , A. Cooray , G. Mangano , A. Melchiorri
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