9 research outputs found

    Probing the MSSM Higgs Boson Sector with Explicit CP Violation through Third Generation Fermion Pair Production at Muon Colliders

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    We perform a systematic study of the production of a third-generation fermion-pair, μ+μffˉ\mu^+\mu^-\to f\bar{f} for f=τ,bf=\tau^-,b, and t in the minimal supersymmetric standard model (MSSM) with explicit CP violation, which is induced radiatively by soft trilinear interactions related to squarks of the third generation. We classify all the observables for probing the CP property of the Higgs bosons constructed by the initial muon beam polarization along with the unpolarized final fermions and with the final-fermion polarization configuration of equal helicity, respectively. The observables allow for complete determination of CP property of the neutral Higgs bosons. The interference between the Higgs boson and gauge boson contributions also could provide a powerful method for the determination of the CP property of two heavy Higgs bosons in the top-quark pair production near the energy region of the Higgs-boson resonances. For the lightest Higgs-boson mass there is no sizable interference between scalar and vector contributions for the determination of the CP property of the lightest Higgs boson. We give a detailed numerical analysis to show how the radiatively-induced CP violation in the Higgs sector of the MSSM can be measured.Comment: 30 pages, 7 figures including 5 eps ones. Typos corrected and references added. To appear in Phys. Rev.

    Charge transport in oxygen-doped polysilicon layers on Si

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    It is shown that layers of polysilicon doped with oxygen (polydox) can be used for the passivation of underlying p-n junctions. The conduction mechanism was derived from measurements in layers directly deposited on to silicon crystals. At room temperature we found Poole-Frenkel conduction changing at higher temperatures, presumably, to hopping in localized states

    Charge transport in oxygen-doped polysilicon layers on Si

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    It is shown that layers of polysilicon doped with oxygen (polydox) can be used for the passivation of underlying p-n junctions. The conduction mechanism was derived from measurements in layers directly deposited on to silicon crystals. At room temperature we found Poole-Frenkel conduction changing at higher temperatures, presumably, to hopping in localized states.On montre que les couches minces de silicium polycristallin dopé avec de l'oxygène (polydox) peuvent être utilisées pour la passivation des jonctions p-n au-dessous des couches. Le mécanisme de la conduction est dérivé des mesures dans les couches minces déposées directement sur les cristaux de silicium. A la température ambiante on trouve une conduction Poole-Frenkel et à une température plus haute on a probablement une conduction par les sauts d'un piège localisé à l'autre

    Yeast Responses to Stresses

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    From feast to famine; adaptation to nutrient availability in yeast

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