Results 101 to 110 of about 189,045 (244)
Reviews of Modern Physics, 1999 These lectures describe some aspects of the physics of massive neutrinos. After a brief introduction of neutrinos in the Standard Model, I discuss possible patterns for their masses. In particular, I show how the presence of a large Majorana mass term for the right-handed neutrinos can engender tiny neutrino masses for the observed neutrinos.
openaire +3 more sources
Hadronic Models of the Fermi Bubbles: Future Perspectives
Galaxies, 2018 The origin of sub-TeV gamma rays detected by Fermi-LAT from the Fermi bubbles at the Galactic center is still unknown. In a hadronic model, acceleration of protons and/or nuclei and their subsequent interactions with gas in the bubble volume can produce ...
Soebur Razzaque, Lili Yang
doaj +1 more source
Two Micron‐Size Dark Dimensions
Fortschritte der Physik, Volume 73, Issue 8, August 2025.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
Type II Seesaw and a Gauge Model for the Bimaximal Mixing Explanation of Neutrino Puzzles
, 1999 We present a gauge model for the bimaximal mixing pattern among the neutrinos that explains both the atmospheric and solar neutrino data via large angle vacuum oscillation among the three known neutrinos.
Mohapatra, R. N. +2 more
core +1 more source
Can LSND and SuperKamiokande be explained by radiative decays of muons-neutrinos?
, 1999 The radiative decay of muon-neutrinos in matter with a scheme of mass-degenerate neutrinos could be the common origin of the appearance of anti-electron-neutrinos at LSND and the disappearance of muons-neutrinos at SuperKamiokande.
Vannucci, F.
core
First quantized approaches to neutrino oscillations and second quantization
, 2005 Neutrino oscillations are treated from the point of view of relativistic first quantized theories and compared to second quantized treatments. Within first quantized theories, general oscillation probabilities can be found for Dirac fermions and charged ...
B. Pontecorvo +13 more
core +1 more source
Geophysical Research Letters, Volume 52, Issue 14, 28 July 2025.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
Searching for Hadronic Signatures in the Time Domain of Blazar Emission: The Case of Mrk 501
UniverseBlazars—a subclass of active galaxies—are intrinsically time-variable broadband sources of electromagnetic radiation. In this contribution, we explored relativistic proton (hadronic) signatures in the time domain blazar emission and searched for those ...
Margaritis Chatzis +3 more
doaj +1 more source
Neutrino tomography - Learning about the Earth's interior using the propagation of neutrinos
, 2006 Because the propagation of neutrinos is affected by the presence of Earth matter, it opens new possibilities to probe the Earth's interior. Different approaches range from techniques based upon the interaction of high energy (above TeV) neutrinos with ...
A. B. Borisov +36 more
core +1 more source
Oscilação quântica de sabores com pacotes de ondas
Revista Brasileira de Ensino de FísicaSugerimos um esquema de aproximação analítica para estudarmos os fenômenos de oscilação de quântica de sabores de uma maneira pedagógica e compreensiva.
Alex Eduardo de Bernardini +1 more
doaj +1 more source