Results 21 to 30 of about 54,975 (183)

Investigating Lorentz Invariance Violation with the long baseline experiment P2O

Journal of High Energy Physics, 2023
One of the basic propositions of quantum field theory is Lorentz invariance. The spontaneous breaking of Lorentz symmetry at a high energy scale can be studied at low energy extensions like the Standard model in a model-independent way through effective ...
Nishat Fiza, Nafis Rezwan Khan Chowdhury, Mehedi Masud   +2 more
doaj   +1 more source

From ray to spray: augmenting amplitudes and taming fast oscillations in fully numerical neutrino codes

Journal of High Energy Physics, 2023
In this note we describe how to complement the neutrino evolution matrix calculated at a given energy and trajectory with additional information which allows to reliably extrapolate it to nearby energies or trajectories without repeating the full ...
Michele Maltoni
doaj   +1 more source

Standard and non-standard primordial neutrinos [PDF]

, 2006
The standard cosmological model predicts the existence of a cosmic neutrino background with a present density of about 110 cm^{-3} per flavour, which affects big-bang nucleosynthesis, cosmic microwave background anisotropies, and the evolution of large ...
Hannestad S, P D Serpico, Seljak U Slosar A McDonald P, Serpico P, Spergel D N   +4 more
core   +4 more sources

Effects of non-standard neutrino-electron interactions on relic neutrino decoupling [PDF]

, 2006
We consider the decoupling of neutrinos in the early Universe in presence of non-standard neutral current neutrino-electron interactions (NSI). We first discuss a semi-analytical approach to solve the relevant kinetic equations and then present the ...
Mangano, Gianpiero, Miele, Gennaro, Pastor, Sergio, Pinto, Teguayco, Pisanti, Ofelia, Serpico, Pasquale D.   +5 more
core   +4 more sources

Neutrino bound states and bound systems

Journal of High Energy Physics, 2022
Yukawa interactions of neutrinos with a new light scalar boson ϕ can lead to formation of stable bound states and bound systems of many neutrinos (ν-clusters).
Alexei Yu. Smirnov, Xun-Jie Xu
doaj   +1 more source

Probing non-standard neutrino interactions with a light boson from next galactic and diffuse supernova neutrinos

Journal of High Energy Physics, 2022
Non-standard neutrino interactions with a massive boson can produce the bosons in the core of core-collapse supernovae (SNe). After the emission of the bosons from the SN core, their subsequent decays into neutrinos can modify the SN neutrino flux.
Kensuke Akita, Sang Hui Im, Mehedi Masud
doaj   +1 more source

Neutrino physics from Cosmology [PDF]

, 2013
In recent years precision cosmology has become an increasingly powerful probe of particle physics. Perhaps the prime example of this is the very stringent cosmological upper bound on the neutrino mass.
Hannestad, Steen
core   +2 more sources

Analytic treatment of 3-flavor neutrino oscillation and decay in matter

Journal of High Energy Physics, 2023
We present compact analytic expressions for 3-flavor neutrino oscillation probabilities with invisible neutrino decay, where matter effects have been explicitly included.
Dibya S. Chattopadhyay, Kaustav Chakraborty, Amol Dighe, Srubabati Goswami   +3 more
doaj   +1 more source

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

Quantum decoherence and relaxation in long-baseline neutrino data

Journal of High Energy Physics, 2023
We investigate the effect of quantum decoherence and relaxation in neutrino oscillations using MINOS and T2K data. The formalism of open quantum systems is used to describe the interaction of a neutrino system with the environment, where the strength of ...
A. L. G. Gomes, R. A. Gomes, O. L. G. Peres   +2 more
doaj   +1 more source