Results 81 to 90 of about 241,450 (255)
10 pages, 2 figures. Invited talk at 18th International Conference on Particles and Nuclei (PANIC 08), Eilat, Israel, 9-14 Nov ...
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Two Micron‐Size Dark Dimensions
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui+2 more
wiley +1 more source
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 on cosmological neutrino mass measurements, both the present bounds and the future prospects.
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Clarity through the neutrino fog: constraining new forces in dark matter detectors
The PandaX-4T and XENONnT experiments present indications of Coherent Elastic Neutrino Nucleus Scattering (CEνNS) from 8B solar neutrinos at 2.6σ and 2.7σ, respectively.
Pablo Blanco-Mas+6 more
doaj +1 more source
Radio Detection of UHE Cosmic Rays and Neutrinos off the Moon with Two 30 m Telescopes
Due to the Askaryan effect, radio emissions will be produced when ultra-high-energy (UHE) cosmic rays and neutrinos impact the lunar regolith. Many experiments have been proposed and performed to detect such radio emissions from the lunar regolith ...
Linjie Chen+3 more
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Latest Results from the T2K Neutrino Experiment
The T2K long baseline neutrino oscillation experiment measures muon neutrino disappearance and electron neutrino appearance in accelerator-produced neutrino and anti-neutrino beams.
Dean Karlen+1 more
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Abstract Ice is mechanically and dielectrically anisotropic. The degree of anisotropy evolves dynamically as ice crystals align during deformation into macroscopic patterns termed ice fabric. Radar polarimetry is an emerging tool to detect such patterns, particularly using nadir‐looking antenna geometries sensitive to horizontal anisotropy.
Falk M. Oraschewski+2 more
wiley +1 more source
Neutrino flavor relaxation or neutrino oscillations? [PDF]
We propose the new mechanism of neutrino flavour relaxation to explain the experimentally observed changes of initial neutrino flavour fluxes. The test of neutrino relaxation hypothesis is presented, using the data of modern reactor, solar and accelerator experiments. The final choice between the standard neutrino oscillations and the proposed neutrino
S.V. Tolokonnikov, I.N. Machulin
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On the photon–classical electromagnetic field relationship
Abstract This paper discusses how the two ways in which the wavefunction of a free‐propagating photon can be introduced—starting from the relativistic energy−momentum relationship or based on the electromagnetic field, in particular on Riemann–Silberstein vectors—are not entirely equivalent since they can lead to different consequences regarding photon
Daniela Dragoman
wiley +1 more source
In this talk, I review the potential connection of neutrinos to the Physics of the Early Universe, in particular the r le of (sterile) neutrinos to leptogenesis/baryogenesis and the dark sector of the Universe. The possibility of CPT Violation among active neutrinos at early times and its role in leptogenesis/baryogenesis without sterile neutrinos is ...
Nick E. Mavromatos, Nick E. Mavromatos
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