Results 81 to 90 of about 60,772 (266)

Update on neutrino mixing in the early Universe [PDF]

, 2001
From the current cosmological observations of CMB and nuclear abundances we show, with an analytic procedure, that the total effective number of extra neutrino species $\Delta N_{\nu}^{\rm tot}< 0.3$.
A. Aguilar, A. Balbi, A. Bandyopadhyay, A. D. Dolgov, A. D. Dolgov, A. D. Dolgov, A. E. Lange, A. H. Jaffe, A. J. Baltz, A. Yahil, B. T. Cleveland, C. Giunti, C. Giunti, D. E. Groom, D. O. Caldwell, D. P. Kirilova, D. P. Kirilova, E. Lisi, G. Altarelli, G. Beaudet, G. Jungman, G. L. Fogli, G. L. Fogli, G. Steigman, H. Kang, H. Kurki-Suonio, H. Reeves, H. V. Klapdor-Kleingrothaus, J. Lesgourgues, J. M. Cline, J. M. O’Meara, J. N. Abdurashitov, J. N. Bahcall, J. R. Bond, J. T. Peltoniemi, J. T. Peltoniemi, K. A. Olive, K. A. Olive, K. Enqvist, K. Kainulainen, M. Ambrosio, M. Apollonio, M. Hirsch, M. Maltoni, M. S. Smith, N. F. Bell, N. Fornengo, N. Hata, N. Okada, O. L. Peres, P. de Bernardis, P. Di Bari, P. Di Bari, P. Di Bari, P. Di Bari, P. Di Bari, P. Langacker, P. Lipari, Q. R. Ahmad, R. Barbieri, R. Becker-Szendy, R. E. Lopez, R. E. Lopez, R. Foot, R. Foot, R. Foot, R. Foot, R. Foot, R. Foot, R. V. Wagoner, S. Fukuda, S. Hanany, S. Hannestad, S. Hannestad, S. M. Bilenkii, S. M. Bilenkii, S. M. Bilenky, S. P. Mikheev, S. P. Mikheev, S. Sarkar, T. Kajita, T. P. Walker, V. Barger, V. Barger, V. Barger, V. F. Shvartsman, W. Grimus, W. Hampel, W. W. M. Allison, X. Shi, X. Shi, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. I. Izotov   +96 more
core   +3 more sources

Bimaximal neutrino mixing and neutrino mass matrix [PDF]

Physical Review D, 1999
New material strengthening the argument of the paper added; 10 pages latex; UMD-PP-99 ...
Rabindra N. Mohapatra, Shumel Nussinov, Shumel Nussinov   +2 more
openaire   +3 more sources

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 mixing contribution to the cosmological constant

, 2004
We show that the non-perturbative vacuum structure associated with neutrino mixing leads to a non-zero contribution to the value of the cosmological constant. Such a contribution comes from the specific nature of the mixing phenomenon.
A. Capolupo, Bahcall, Bilenky, Binger, Blasone, Blasone, Blasone, Blasone, Blasone, Blasone, Blasone, Blasone, Capozziello, Capozziello, Capozziello, Coleman, Fujii, Fujii, Fujii, Fujii, G. Vitiello, Gell-Mann, Hannabuss, Hannabuss, Ji, Ji, M. Blasone, Perlmutter, S. Capozziello, S. Carloni, Sahni, Shapiro, Shapiro, Shifman, Weinberg, Yokoyama, Zeldovich, Zeldovich   +37 more
core   +1 more source

Resonant neutrino interaction and mixing [PDF]

Physics Letters B, 1995
We investigate the resonant interaction of neutrinos in matter in the presence of mixing. At energies near the W resonance, oscillations are absent; the survival probability of electron antineutrinos is suppressed due to the presence of open inelastic channels.
S. Kovesi-Domokos, G. Domokos
openaire   +3 more sources

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 more
wiley   +1 more source

Final results of the search for ν μ → ν e oscillations with the OPERA detector in the CNGS beam

Journal of High Energy Physics, 2018
The OPERA experiment has discovered the tau neutrino appearance in the CNGS muon neutrino beam, in agreement with the 3 neutrino flavour oscillation hypothesis.
The OPERA collaboration, N. Agafonova, A. Aleksandrov, A. Anokhina, S. Aoki, A. Ariga, T. Ariga, A. Bertolin, C. Bozza, R. Brugnera, A. Buonaura, S. Buontempo, M. Chernyavskiy, A. Chukanov, L. Consiglio, N. D’Ambrosio, G. De Lellis, M. De Serio, P. del Amo Sanchez, A. Di Crescenzo, D. Di Ferdinando, N. Di Marco, S. Dmitrievsky, M. Dracos, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, A. Ereditato, J. Favier, R. A. Fini, F. Fornari, T. Fukuda, G. Galati, A. Garfagnini, V. Gentile, J. Goldberg, Y. Gornushkin, S. Gorbunov, G. Grella, A. M. Guler, C. Gustavino, C. Hagner, T. Hara, T. Hayakawa, A. Hollnagel, B. Hosseini, K. Ishiguro, A. Iuliano, K. Jakovcic, C. Jollet, C. Kamiscioglu, M. Kamiscioglu, S. H. Kim, N. Kitagawa, B. Klicek, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, F. Laudisio, A. Lauria, A. Ljubicic, A. Longhin, P. Loverre, A. Malgin, M. Malenica, G. Mandrioli, T. Matsuo, V. Matveev, N. Mauri, E. Medinaceli, F. Meisel, A. Meregaglia, S. Mikado, M. Miyanishi, F. Mizutani, P. Monacelli, M. C. Montesi, K. Morishima, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, K. Niwa, N. Okateva, S. Ogawa, K. Ozaki, A. Paoloni, L. Paparella, B. D. Park, L. Pasqualini, A. Pastore, L. Patrizii, H. Pessard, D. Podgrudkov, N. Polukhina, M. Pozzato, F. Pupilli, M. Roda, T. Roganova, H. Rokujo, G. Rosa, O. Ryazhskaya, O. Sato, A. Schembri, I. Shakiryanova, T. Shchedrina, H. Shibuya, E. Shibayama, T. Shiraishi, S. Simone, C. Sirignano, G. Sirri, A. Sotnikov, M. Spinetti, L. Stanco, N. Starkov, S. M. Stellacci, M. Stipcevic, P. Strolin, S. Takahashi, M. Tenti, F. Terranova, V. Tioukov, S. Vasina, P. Vilain, E. Voevodina, L. Votano, J. L. Vuilleumier, G. Wilquet, C. S. Yoon   +132 more
doaj   +1 more source

Exponential parameterization of the neutrino mixing matrix - comparative analysis with different data sets and CP violation

, 2016
The exponential parameterization of Pontecorvo-Maki-Nakagawa-Sakata mixing matrix for neutrino is used for comparative analysis of different neutrino mixing data.
Borisov, Anatoly, Zhukovsky, Konstantin
core   +1 more source

THEORY OF NEUTRINO MASSES AND MIXINGS [PDF]

International Journal of Modern Physics A, 2002
Neutrino physics is going through a revolutionary progress. In this talk I review what we have learned and why neutrino mass is so important. Neutrino masses and mixings are already shedding new insight into the origin of flavor. Given the evidences for neutrino mass, leptogenesis is gaining momentum as the origin of cosmic baryon asymmetry.
Hitoshi Murayama, Hitoshi Murayama
openaire   +3 more sources

Visible GeV ALP from TeV Vector‐Like Leptons

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi, Marta Fuentes Zamoro, Luca Merlo   +2 more
wiley   +1 more source