Results 51 to 60 of about 1,099,565 (219)

Simulation of a Three‐Nucleons System Transition on Quantum Circuits

Advanced Quantum Technologies, Volume 8, Issue 5, May 2025.
A general procedure is presented to calculate the transition probability for two nuclear states and a transition operator. The ground state is approximated through the variational quantum eigensolver and the first excited one using more sophisticated variational algorithms.
Luca Nigro, Carlo Barbieri, Enrico Prati
wiley   +1 more source

Neutrino physics and astrophysics [PDF]

Nuclear Physics A, 1999
Les neutrinos jouent un role cle, a la fois en physique des particules et en astrophysique. Les sources de neutrinos sont multiples dans l'Univers et ceux-ci sont produits en abondance. Sur Terre, les principales sources sont les accelerateurs ou les reacteurs nucleaires.
Spiro, M., Vignaud, D.
openaire   +5 more sources

Neutrinos from the Early Universe and Physics Beyond Standard Models [PDF]

arXiv, 2014
Neutrino oscillations present the only robust example of experimentally detected physics beyond the standard model. This review discusses the established and several hypothetical beyond standard models neutrino characteristics and their cosmological effects and constraints.
arxiv  

Exploring nu signals in dark matter detectors

, 2012
We investigate standard and non-standard solar neutrino signals in direct dark matter detection experiments. It is well known that even without new physics, scattering of solar neutrinos on nuclei or electrons is an irreducible background for direct dark
A. Beda ., A. Friedland, A. Katz, A. Mirizzi, B. Aharmim ., B. Feldman, CAST collaboration, D. Fixsen ., D. Nygren, E.K. Akhmedov, E.K. Akhmedov, G. Karagiorgi, G. Karagiorgi, J. Bahcall, J. Collar, J. Hamann, J. Redondo, J. Redondo, J.B. Dent, J.N. Bahcall, J.P. Ralston, Joachim Kopp, K. Blum, L.M. Krauss, M. Bordag, M. Drees, M. Farina, M.L. Graesser, N. Bozorgnia, N. Bozorgnia, N. Bozorgnia, N. Bozorgnia, NASA, P. Meade, P.F. Sorensen, P.J. Fox ., Particle Data Group collaboration, Pedro A.N Machado, R. Bernabei ., R. Bernabei ., Roni Harnik, S. Davidson, T. Schwetz   +42 more
core   +1 more source

Multi‐Source Forecast of Solar Cycle Flare Activity Using the Novel Informer‐Based Models

Space Weather, Volume 23, Issue 4, April 2025.
Abstract Solar flares, the significant indicators of solar activity, have an impact on Earth's satellites and communication systems. Accurate prediction of solar flare events is crucial for mitigating these effects. In this work, we use multiple data sources, including Geostationary Operational Environmental Satellites soft X‐ray flare flux and the ...
Jie Cao, Tingting Xu, Linhua Deng, Miao Wan, Xinhua Zhao, Yang Peng, Xueliang Zhou, Wenhua Wang, Lidong Huang, Wencheng Wang, Lei Yang, Weihong Zhou   +11 more
wiley   +1 more source

Neutrino Oscillation Physics

Nuclear and Particle Physics Proceedings, 2015
AbstractWe present a global analysis of neutrino oscillation data, including in particular the high-precision measurements of the last SM mixing angle θ13 at reactors, which have confirmed previous indications in favor of θ13>0. We focus on the correlations between θ13 and the mixing angle θ23, as well as between θ13 and the neutrino CP-violation phase
Antonio Palazzo, Eligio Lisi, G. L. Fogli, G. L. Fogli, Francesco Capozzi, Francesco Capozzi, Antonio Marrone, Antonio Marrone, Daniele Montanino   +8 more
openaire   +4 more sources

Neutrino physics: An update [PDF]

American Journal of Physics, 2003
We update our recent didactic survey of neutrino physics, including new results from the Sudbury Neutrino Observatory and Kamioka Liquid Scintillator Anti-Neutrino Detector experiments, and recent constraints from the Wilkinson Microwave Anisotropy Probe and other cosmological probes.
Haxton, WC, Holstein, BR
openaire   +3 more sources

On the Properties of Neutrinos [PDF]

arXiv, 2018
Our present understanding of neutrino properties is reviewed with a particular emphasis on observable differences between Majorana and Dirac neutrinos. Current and future experimental efforts towards measuring neutrino properties are summarized. Consequences of the Majorana vs.Dirac nature of neutrinos on neutrino masses, neutrino decays, and neutrino ...
arxiv  

Neutrino emission in neutron matter from magnetic moment interactions

, 2004
Neutrino emission drives neutron star cooling for the first several hundreds of years after its birth. Given the low energy ($\sim$ keV) nature of this process, one expects very few nonstandard particle physics contributions which could affect this rate.
Charles Gale, D. G. Yakovlev, D. G. Yakovlev, G. V. Domogatskii, G. V. Domogatskii, H. Bethe, H. Umeda, K. Hagiwara, K. R. S. Balaji, Prashanth Jaikumar, R. N. Mohapatra   +10 more
core   +1 more source

Energetic Compact Strokes as the Major Source of Downward Terrestrial Gamma‐Ray Flashes in Winter Thunderstorms

Geophysical Research Letters, Volume 52, Issue 6, 28 March 2025.
Abstract Terrestrial gamma‐ray flashes (TGFs) are short bursts of intense gamma radiation associated with lightning discharges. Although thousands of TGFs have been observed from space, TGFs detected at ground level, known as downward TGFs, are still very limited, and their relationship with lightning discharge processes remains elusive. Here we report
Ting Wu, David M. Smith, Yuuki Wada, Kazuhiro Nakazawa, Manari Oguchi, Masashi Kamogawa, Tomoyuki Suzuki, Qingliu Yang, Daohong Wang   +8 more
wiley   +1 more source