Zobrazeno 1 - 10
of 50
pro vyhledávání: '"J.L. Lucio M."'
Publikováno v:
Optik
Optik, Elsevier, 2017, 142, pp.536-540. ⟨10.1016/j.ijleo.2017.06.035⟩
Optik, 2017, 142, pp.536-540. ⟨10.1016/j.ijleo.2017.06.035⟩
Optik, Elsevier, 2017, 142, pp.536-540. ⟨10.1016/j.ijleo.2017.06.035⟩
Optik, 2017, 142, pp.536-540. ⟨10.1016/j.ijleo.2017.06.035⟩
International audience; A fast hybrid composed and numerical method for the calculation of eigenvalues (effective indices) and eigenvectors (optical modes) of a slab waveguide presenting a radius of curvature is presented in this letter. This compoun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7bb6b184345faf48ab26144841a7623
https://hal.archives-ouvertes.fr/hal-01538177/file/Optik_Bruno-BECHE.pdf
https://hal.archives-ouvertes.fr/hal-01538177/file/Optik_Bruno-BECHE.pdf
Publikováno v:
Journal of Alloys and Compounds. 473:500-504
Spectroscopic characterization of fiber preforms fabricated with alkali bismuth gallate (KBG) and fluorophosphate glasses (FP) doped with Ho 3+ and Yb 3+ are reported. Luminescent properties of the preforms are studied in the near-IR spectral range u
Publikováno v:
European Physical Journal C. Particles and Fields, Vol. C28, p. 107-114 (2003)
Using the pole approach we determine the mass and width of the $f_0(980)$; in particular, we analyze the possibility that two nearby poles are associated to it. We restrict our analysis to a neighborhood of the resonance, using $\pi\pi$ data for the
Publikováno v:
Physics Letters B. 517:345-354
The complementarity between Chiral Perturbation Theory and the Linear Sigma Model in the scalar channel is exploited to study $\pi^0\pi^0$ production in $\rho$ and $\omega$ radiative decays, where the effects of a low mass scalar resonance $\sigma(50
Publikováno v:
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. B501, p. 37-43 (2001)
Isospin violation in the $\rho(770)$ mass and width is considered within the $S$ matrix approach using combined fits to the $e^+e^- \to\pi^+\pi^-$ and $\tau^- \to \nu_{\tau}\pi^-\pi^0$ data performed by the ALEPH collaboration. We show that the pole
Publikováno v:
Physics Letters B. 494:221-228
The radiative φ → π 0 ηγ decay is discussed emphasizing the effects of the a 0 (980) scalar resonance which dominates the high values of the π 0 η invariant mass spectrum. In its lowest part, the proposed amplitude coincides with the reliable
Publikováno v:
Physics Letters B. 486:406-413
The ratio Φ→K + K − /K 0 K 0 is discussed and its present experimental value is compared with theoretical expectations. A difference larger than two standard deviations is observed. We critically examine a number of mechanisms that could account
Publikováno v:
Physics Letters A. 219:150-154
Using a simple reparametrization invariant Lagrangian we derive a generalization of the relativistic point particle wave equation. We give a physical interpretation of the generalized equation and outline some applications.
Autor:
J.L. Lucio M., M. Napsuciale
Publikováno v:
Nuclear Physics B. 440:237-250
We study the K 0 k 0 γ and K+K−γ production in a φ factory. We analyze the interference between the f0(975) and a0(980) mesons with special emphasis on possible correlations of these effects in the neutral and charged channels. We take into acco
Publikováno v:
Physics Letters A. 182:217-219
We consider transformations which are symmetries of the action but not of the Lagrangian and the corresponding generalizations in quantum mechanics of the group representation theory. We suggest that the variation of the Lagrangian may be taken as st