11 research outputs found

    On the finite-size effects in two segregated Bose-Einstein condensates restricted by a hard wall

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    The finite-size effects in two segregated Bose-Einstein condensates (BECs) restricted by a hard wall is studied by means of the Gross-Pitaevskii equations in the double-parabola approximation (DPA). Starting from the consistency between the boundary conditions (BCs) imposed on condensates in confined geometry and in the full space, we find all possible BCs together with the corresponding condensate profiles and interface tensions. We discover two finite-size effects: a) The ground state derived from the Neumann BC is stable whereas the ground states derived from the Robin and Dirichlet BCs are unstable. b) Thereby, there equally manifest two possible wetting phase transitions originating from two unstable states. However, the one associated with the Robin BC is more favourable because it corresponds to a smaller interface tension.Comment: 14 pages, 7 figure

    Large signal of hμτh \rightarrow \mu \tau within the constraints of eiejγe_i \rightarrow e_j\gamma decays in the 3-3-1 model with neutral leptons

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    In the framework of the 3-3-1 model with neutral leptons, we have investigated the lepton-flavor-violating sources based on the Higgs mass spectrum which has two neutral Higgses identitied with corresponding ones in the Two-Higgs-Doublet model (THDM). On the 13 TeV13~\mathrm{TeV} scale of the LHC, we point out the parameter space regions where the experimental limits of eiejγe_i \rightarrow e_j\gamma decays are satisfied. These regions depend heavily on the mixing of exotic leptons but are predicted to have large h10μτh^0_1\rightarrow \mu \tau signals. We also show that Br(h10μτ)\mathrm{Br}(h^0_1\rightarrow \mu \tau) can reach a value of 10410^{-4}.Comment: 30 pages, 9 figure

    Statistical Analsysis to Evaluate Heavy Metal Pollution in the Air Obatained by Moss Technique in Hanoi and its Surrounding Region

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    The aim of this paper was the application of statistical analysis including principal component analysis to evaluate heavy metal pollution obtained by moss technique in the air of Ha Noi and its surrounding areas and to evaluate potential pollution sources. The concentrations of 33 heavy metal elements in 27 samples of Barbula Indica moss in the investigated region collected in December of 2016 in the investigated area have been examined using multivariate statistical analysis. Five factors explaining 80% of the total variance were identified and their potential sources have been discussed
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