Updated solution to the solar neutrino problem based on non-standard neutrino interactions

We present an updated version of the solution to the solar neutrino problem based on non-standard flavor changing neutrino interactions (FCNI) and non-universal flavor diagonal neutrino interactions (FDNI). We find a good fit not only to the total rates measured by all solar neutrino experiments but also to the day-night and seasonal variations of the event rate, as well as the recoil electron energy spectrum measured by the SuperKamiokande collaboration.     

Charged-current non-standard neutrino interactions at the LHC and HL-LHC

A series of new physics scenarios predict the existence of the extra charged gauge boson \begin{document}$ W' $\end{document}, which can induce charged-current (CC) non-standard neutrino interactions (NSIs). The theoretical constraints on the simplified \begin{document}$ W' $\end{document} model and further on the CC NSI parameters \begin{document}$ \widetilde{\epsilon}^{ qq'Y}_{\alpha\beta} $\end{document} from partial wave unitarity and \begin{document}$ W' $\end{document} decays are considered. The sensitivity of the process \begin{document}$ p p \rightarrow W'\rightarrow \ell\nu $\end{document} to the \begin{document}$ W' $\end{document} model at the LHC and high-luminosity (HL) LHC experiments is investigated by estimating the expected constraints on \begin{document}$ \widetilde{\epsilon}^{qq'Y}_{\alpha\beta} $\end{document} (\begin{document}$ \alpha = \beta = e $\end{document} or μ) using a Monte-Carlo (MC) simulation. We find that the interference effect plays an important role, and the LHC can strongly constrain \begin{document}$ \widetilde{\epsilon}^{qq'L}_{\alpha\beta} $\end{document}. Compared with those at the \begin{document}$ 13 \;{\rm TeV} $\end{document} LHC with \begin{document}$ {\cal{L}}=139\;{\rm fb}^{-1} $\end{document}, the expected constraints at the \begin{document}$ 14 \;{\rm TeV} $\end{document} LHC with \begin{document}$ {\cal{L}}=3\;{\rm ab}^{-1} $\end{document} can be strengthened to approximately one order of magnitude.     

Sensitivity of inelastic pion scattering to non-local interactions

We show that the excitation of nuclear electric dipole states by small angle inelastic scattering of pions can be used to detect the degree of non-locality of pion nucleus scattering matrix.     

Sensitivity of spinI=5/2 perturbed-angular-correlation measurements to combined magnetic-dipole and electric-quadrupole hyperfine interactions

To design, analyze, and interpret perturbed-angular-correlation (PAC) experiments, the theory of the combined nuclear-magnetic-dipole and nuclear-electric-quadrupole interaction is applied. The applications involve polycrystalline sources that contain spinI=5/2 intermediate-quantum-level PAC probes. Frequenciesw _kk , amplitudesa _kk , and perturbation functionsG ₂₂ (t) are calculated for various values of the combined-interaction parameters, , and, wheny=w _L /W _Q is fixed at 30. For relatively large values ofy, the weak shift in them-state energies caused by the electric-quadrupole interaction generally produces a large change in the resulting perturbation function, and the effect is sensitive to the specific values of the parameters, , and. This sensitivity arises because the weak shift inm-state energies produces heterodyning. Moreover, this analysis indicates that PAC measurements of combined interactions in highly-distorted crystals (W _Q 0 and0) can provide potentially more information than previously thought. This analysis strongly suggests that more experimental investigations should be performed on highly-distorted crystals.     

Imprint of non-standard interactions on the CP violation measurements at long baseline experiments

By introducing an additional state feedback into classic Rikitake system, a new hyperchaotic system without equilibrium is derived. The proposed system is investigated through numerical simulations and analyses including time phase portraits, Lyapunov exponents, and Poincaré maps. Based on adaptive control and Lyapunov stability theory, we design a reduced-order projective synchronization scheme for synchronizing the hyperchaotic Rikitake system coexisting without equilibria and the original classic Rikitake system coexisting with two non-hyperbolic equilibria. Finally, numerical simulations are given to illustrate the effectiveness of the proposed synchronization scheme.     

Coupled-channel analysis of the πη and KK̄ systems near KK̄ threshold

It is shown that the behaviour of the πη and $\text{K}\text{K}\text{?}\text{I=1}$ systems near KK? threshold may be explained by a two-channel resonance with very large partial widths. The narrowness of the πη peak at 980 MeV can be explained by the action of unitarity and analyticity at KK? threshold (a cusp phenomenon).     

A non-standard statistical approach to the silo discharge

We present molecular dynamics simulations of the beginning of a silo discharge by gravity. The evolution of the velocity profile and the probability density functions for the displacements of the grains are obtained. These PDFs reveal non-gaussian statistics and superdiffusive behavior similar to that observed in some experiments. We propose an analytical expression for the PDFs and an explanation for its dynamical origin in connection with the ideas of the “spot" model and non-extensive thermodynamics.     

Transition to turbulence in a non-standard rotating flow

Characteristic features of the transition to turbulence in standard Taylor-Couette flow are the persistence of cellular structure and residual temporal order to high values of the Reynolds number R. We report here the results of an experimental investigation in a non-standard system which has discrete symmetries. The transition process is found to be charged qualitatively and has features common to other non-linear systems. In addition, a state of temporal and spatial chaos is achieved at moderate values of R.     

Influence of Cross-Sectional Uncertainty on Sensitivity Studies of DUNE and T2HK Experiments

International Journal of Theoretical Physics - We successfully realized symmetric and asymmetric cyclic quantum teleportation by using different controllers for each receiver. In this study, Alice...     

MiniBooNE and LSND data: non-standard neutrino interactions in a (3+1) scheme versus (3+2) oscillations

Journal of High Energy Physics - We consider the cosmology of a model in which the dark matter is part of a nonminimal hidden sector which is not in thermal equilibrium with the standard model...     

CP,T and fundamental interactions

We discuss the importance of the CP (simultaneous particle–antiparticle and left–right permutation) and T (time reversal) symmetries in the context of fundamental interactions. We show that they may provide clues to go beyond the 4-D gauge interactions. We insist on the fact that T violation is not associated to a degradation (like in entropy), but simply characterised by different trajectories.     

Sensitivity of T20 indA →PX to the reaction mechanism and relativistic effects

A method for the analysis of interactions between fast deuterons and nucleons is developed, taking into account both the relativistic effects in the deuteron and the mechanism of their interaction. The inclusive proton spectra and the polarisation characteristics are investigated, taking for instance the fragmentation type processes of deuterons on nucleons. A strong sensitivity of the deuteron polarisation tensor component T₂₀ both to the reaction mechanism and to the relativistic structure of the deuteron is shown. It is shown that there can't be a direct indication of the 6q-state existence in the deuteron from the T₂₀ experimental data.     

Constraints on non-standard effects from present and futureg μ−2 measurements

Motivated by the expected high accuracy of the next AGS measurement of the muong?2 we have computed several types of contributions arising from new particles and interactions. Results are first given for individual terms where limits on new parameters, coming fromg _μ?2 are compared to those expected from future colliders. Combined effects due to different contributions are then considered and this reveals that constrained models with a low effective scale could still be allowed.