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The Cosmic Neutrino Background (CNB) encodes a wealth of information, but has not yet been observed directly. To determine the prospects of detection and to study its information content, we reconstruct the phase-space distribution of local…

Cosmology and Nongalactic Astrophysics · Physics 2023-12-29 Willem Elbers , Carlos S. Frenk , Adrian Jenkins , Baojiu Li , Silvia Pascoli , Jens Jasche , Guilhem Lavaux , Volker Springel

I give a brief overview of the physics potential of short baseline experiments at neutrino factories, i.e. facilities providing high energy and high intensity neutrino beams, like the one planned to be built in connection with the proposed…

High Energy Physics - Phenomenology · Physics 2009-10-31 Alexey A. Petrov

In this talk I discuss how neutrinos might help solving or alleviating different anomalies and tensions in cosmology. Invisible decays of the heaviest relic neutrinos might provide a way to solve the neutrino mass tension between…

High Energy Physics - Phenomenology · Physics 2026-05-05 Pasquale Di Bari

We consider the possibility that a large fraction of the ultrahigh energy cosmic rays are decay products of Z bosons which were produced in the scattering of ultrahigh energy cosmic neutrinos on cosmological relic neutrinos. We compare the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Z. Fodor , S. D. Katz , A. Ringwald

The term beta-beam has been coined for the production of a pure beam of electron neutrinos or their antiparticles through the decay of radioactive ions circulating in a storage ring. This concept requires radioactive ions to be accelerated…

Nuclear reactors represent a promising neutrino source for CE$\nu$NS (coherent-elastic neutrino-nucleus scattering) searches. However, reactor sites also come with high ambient neutron flux. Neutron capture-induced nuclear recoils can…

High Energy Physics - Experiment · Physics 2024-03-19 A. J. Biffl , A. Gevorgian , K. Harris , A. N. Villano

We discuss a new method to extract neutrino signals in low energy experiments. In this scheme the symmetric nature of most backgrounds allows for direct cancellation from data. The application of this technique to the Palo Verde reactor…

High Energy Physics - Experiment · Physics 2009-10-31 Y-F. Wang , L. Miller , G. Gratta

We discuss the radar detection technique as a probe for high-energy cosmic neutrino induced particle cascades in a dense medium like ice. With the recent detection of high-energy cosmic neutrinos by the IceCube neutrino observatory the…

Instrumentation and Methods for Astrophysics · Physics 2015-11-30 Krijn D. de Vries , Kael Hanson , Thomas Meures , Aongus O'Murchadha

Neutrino self-interactions beyond the standard model have profound implications in astrophysics and cosmology. In this Letter, we study an uncharted scenario in which one of the three neutrino species has a mass smaller than the temperature…

High Energy Physics - Phenomenology · Physics 2025-10-30 Isaac R. Wang , Xun-Jie Xu , Bei Zhou

Cosmology places the strongest current limits on the sum of neutrino masses. Future observations will further improve the sensitivity and this will require accurate cosmological simulations to quantify possible systematic uncertainties and…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-18 Willem Elbers , Carlos S. Frenk , Adrian Jenkins , Baojiu Li , Silvia Pascoli

While the general principles of high-energy neutrino detection have been understood for many years, the deep, remote geographical locations of suitable detector sites have challenged the ingenuity of experimentalists, who have confronted…

Astrophysics · Physics 2008-11-26 Steven W. Barwick

Future direct observations of the Cosmic Neutrino Background (C$\nu$B) have the potential to explore a neutrino lifetime, especially in the region of the age of the universe, $t_0=4.35\times 10^{17}\ {\rm s}$. We forecast constraints on…

High Energy Physics - Phenomenology · Physics 2022-03-09 Kensuke Akita , Gaetano Lambiase , Masahide Yamaguchi

Neutrino astrophysics offers new perspectives on the Universe investigation: high energy neutrinos, produced by the most energetic phenomena in our Galaxy and in the Universe, carry complementary (if not exclusive) information about the…

High Energy Astrophysical Phenomena · Physics 2010-02-11 T. Chiarusi , M. Spurio

UHE cosmic neutrino interaction with the cosmic neutrino background (CnuB) is expected to produce absorption dips in the UHE neutrino flux at energies above the threshold for Z-boson resonant production. The observation of these dips would…

Astrophysics · Physics 2008-11-26 V. Van Elewyck

Nuclear reaction cross sections are usually very small in typical astrophysical environments. It has been one of the major challenges of experimental nuclear astrophysics to assess the magnitude of these cross sections in the laboratory.…

Nuclear Theory · Physics 2009-10-30 C. A. Bertulani

Present and future observations of supernova relic neutrinos (SRNs), i.e., a cosmological neutrino background from past core-collapse supernova explosions, potentially give us useful information concerning various fields of astrophysics,…

Astrophysics · Physics 2009-11-10 Shin'ichiro Ando , Katsuhiko Sato

Current cosmological data drop an interesting hint about the existence of sub-eV sterile neutrinos, which should be a part of the cosmic neutrino background (C$\nu$B). We point out that such light sterile neutrinos may leave a distinct…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-21 Y. F. Li , Shu Luo , Zhi-zhong Xing

We examine whether future, nearly all-sky galaxy redshift surveys, in combination with CMB priors, will be able to detect the signature of the cosmic neutrino background and determine the absolute neutrino mass scale. We also consider what…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Carmelita Carbone , Licia Verde , Yun Wang , Andrea Cimatti

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…

High Energy Physics - Phenomenology · Physics 2021-12-28 Wei Chao , Jing-jing Feng , Mingjie Jin , Tong Li

The results of LSND and MiniBooNE, along with the recent papers on a possible reactor neutrino flux anomaly give tantalizing hints of new physics. Models beyond the neutrino-SM have been developed to explain these results and involve one or…