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相关论文: Diffuse neutrino supernova background as a cosmolo…

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The objective of neutrino astronomy, born with the identification of thermonuclear fusion in the sun and the particle processes controlling the fate of a nearby supernova, is to build instruments which reach throughout and far beyond our…

天体物理学 · 物理学 2007-05-23 F. Halzen

We discuss bulk viscous cosmological models. Since the bulk viscous pressure is negative, viable viscous cosmological scenarios with late time accelerated expansion can in principle be constructed. After discussing some alternative models…

宇宙学与河外天体物理 · 物理学 2014-05-20 Hermano Velten

The direct detection of cosmic neutrino background (CNB) has been a longstanding challenge in particle physics, due to its low number density and tiny neutrino masses. In this work, we consider the spectrum of the CNB boosted by cosmic rays…

高能物理 - 唯象学 · 物理学 2021-12-28 Wei Chao , Jing-jing Feng , Mingjie Jin , Tong Li

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

We have derived new bounds on the relativistic energy density in the Universe from cosmic microwave background (CMB), large scale structure (LSS), and type Ia supernova (SNI-a) observations. In terms of the effective number of neutrino…

天体物理学 · 物理学 2009-11-13 Steen Hannestad

We investigate the impact of prior models on the upper bound of the sum of neutrino masses, $\sum m_{\nu}$. We use data from Large Scale Structure of galaxies, Cosmic Microwave Background, Type Ia SuperNovae, and Big Bang Nucleosynthesis.…

Direct dark matter detection experiments will soon be sensitive to neutrinos from astrophysical sources, including the Sun, the atmosphere, and supernova. This sets an important benchmark for these experiments, and opens up a new window in…

高能物理 - 唯象学 · 物理学 2020-01-08 Bhaskar Dutta , Louis E. Strigari

Neutrinos from supernovae, especially those emitted during the late phase of core collapse, are essential for understanding the final stages of massive star evolution. We have been dedicated to developing methods for the analysis of…

There have been two significant recent findings. One is a culmination of the Superkamiokande experiments, which demonstrate Neutrino oscillation and therefore a non-zero mass. The other is the finding that the universe will continue to…

高能物理 - 唯象学 · 物理学 2007-05-23 B. G. Sidharth

Gadolinium-loading of large water Cherenkov detectors is a prime method for the detection of the Diffuse Supernova Neutrino Background (DSNB). While the enhanced neutron tagging capability greatly reduces single-event backgrounds,…

仪器与探测器 · 物理学 2021-12-08 David Maksimović , Michael Nieslony , Michael Wurm

This paper explores core-collapse supernovae as crucial targets for neutrino telescopes, addressing uncertainties in their simulation results. We comprehensively analyze eighteen modern simulations and discriminate among supernova models…

高能天体物理现象 · 物理学 2024-01-10 Maria Manuela Saez , Ermal Rrapaj , Akira Harada , Shigehiro Nagataki , Yong-Zhong Qian

Cosmology in the near future promises a measurement of the sum of neutrino masses, a fundamental Standard Model parameter, as well as substantially-improved constraints on the dark energy. We use the shape of the BOSS redshift-space galaxy…

宇宙学与河外天体物理 · 物理学 2019-07-09 Amol Upadhye

Massive neutrinos have a detectable effect on cosmological structure formation, in particular on the large-scale distribution of galaxies. Adding Hot Dark Matter to the now-standard Lambda CDM model leads to a worse fit to large-scale…

天体物理学 · 物理学 2007-05-23 Eric Gawiser

Starting from an inhomogeneous space-time model of the universe we could recreate a scenario of recent time accelerating universe dominated by Dark Energy type of fluid. The background matter component of such a universe was considered to…

广义相对论与量子宇宙学 · 物理学 2023-02-06 Subhra Bhattacharya

Keeping in mind the current picture of an accelerating and flat Universe, some specific dynamical models of the cosmological term $\Lambda$ have been selected for investigating the nature of dark energy. Connecting the free parameters of…

天体物理学 · 物理学 2008-11-26 Saibal Ray , Utpal Mukhopadhyay , Xin-He Meng

We present forecast errors on a wide range of cosmological parameters obtained from a photometric cluster catalogue of a future wide-field Euclid-like survey. We focus in particular on the total neutrino mass as constrained by a combination…

宇宙学与河外天体物理 · 物理学 2012-03-16 Carmelita Carbone , Cosimo Fedeli , Lauro Moscardini , Andrea Cimatti

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

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…

宇宙学与河外天体物理 · 物理学 2015-03-13 Raul Jimenez , Thomas Kitching , Carlos Pena-Garay , Licia Verde

Earth neutrino tomography is a realistic possibility with current and future neutrino detectors, complementary to geophysics methods. The two main approaches are based on either partial absorption of the neutrino flux as it propagates…

高能物理 - 唯象学 · 物理学 2024-08-05 Rasmi Hajjar , Olga Mena , Sergio Palomares-Ruiz

Assuming a minimal $\Lambda$CDM cosmology with three massive neutrinos, the joint analysis of Planck cosmic microwave background data, DESI baryon acoustic oscillations, and distance moduli measurements of Type Ia supernovae from the…

宇宙学与河外天体物理 · 物理学 2025-12-02 William Giarè , Olga Mena , Enrico Specogna , Eleonora Di Valentino
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