472 research outputs found

    Hexapod Coloron at the LHC

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    Instead of the usual dijet decay, the coloron may mainly decay into its own "Higgs bosons", which subsequently decay into many jets. This is a general feature of the renormalizable coloron model, where the corresponding "Higgs bosons" are a color-octet Θ\Theta and a color-singlet ϕI\phi_I. In this paper, we perform a detailed collider study for the signature of ppG(Θgg)(ϕIggqqˉ)pp \rightarrow G' \rightarrow (\Theta \rightarrow gg) (\phi_I \rightarrow gg q\bar{q}) with the coloron GG' as a six-jet resonance. For a light ϕI\phi_I below around 0.5 TeV, it may be boosted and behave as a four-prong fat jet. We also develop a jet-substructure-based search strategy to cover this boosted ϕI\phi_I case. Independent of whether ϕI\phi_I is boosted or not, the 13 TeV LHC with 100 fb1^{-1} has great discovery potential for a coloron with the mass sensitivity up to 5 TeV.Comment: 18 pages, 10 figure

    Relativistic symmetry breaking in light kaonic nuclei

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    As the experimental data from kaonic atoms and KNK^{-}N scatterings imply that the KK^{-}-nucleon interaction is strongly attractive at saturation density, there is a possibility to form KK^{-}-nuclear bound states or kaonic nuclei. In this work, we investigate the ground-state properties of the light kaonic nuclei with the relativistic mean field theory. It is found that the strong attraction between KK^{-} and nucleons reshapes the scalar and vector meson fields, leading to the remarkable enhancement of the nuclear density in the interior of light kaonic nuclei and the manifest shift of the single-nucleon energy spectra and magic numbers therein. As a consequence, the pseudospin symmetry is shown to be violated together with enlarged spin-orbit splittings in these kaonic nuclei.Comment: 15 pages, 7 figure

    4-Chloro-5-[(5,5-dimethyl-4,5-dihydro­isoxazol-3-yl)sulfonyl­meth­yl]-3-methyl-1-(2,2,2-trifluoro­ethyl)-1H-pyrazole

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    The mol­ecule of the title compound, C12H15ClF3N3O3S, is twisted, as indicated by the C—S—C—C torsion angle of 66.00 (18)° for the atoms linking the ring systems. An intra­molecular C—H⋯F short contact occurs. In the crystal, non-classical C—H⋯O inter­actions, one of which has a short H⋯O contact of 2.28 Å, link the mol­ecules
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