Constraining Elko Dark Matter at the LHC with Monophoton Events

A mass dimension one fermion, also known as Elko, constitutes a dark matter candidate which might interact with photons at the tree level in a specific fashion. In this work, we investigate the constraints imposed by unitarity and LHC data on this type of interactions using the search for new physics in monophoton events. We found that Elkos which can explain the dark matter relic abundance mainly through electromagnetic interactions are excluded at the 95\%CL by the 8 TeV LHC data for masses up to 1 TeV.Comment: 6 pages, 4 figure

Introdução e avaliação de cultivares de pimenta do reino em Rondônia.

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Redução de perdas de estacas da pimenteira-do-reino causadas por Sclerotium rolfsii no pré-enraizador.

bitstream/item/36250/1/ORIENTAL-BPD54.pdfVersão eletrônica. 1ª impressão: 2009

Cultivo da pimenta-do-reino sob sistema sombreado.

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Controle químico da podridão-das-estacas (Sclerotium rolfsii) da pimenteira-do-reino.

bitstream/item/27872/1/com.tec.157.pd

Components of multifractality in the Central England Temperature anomaly series

We study the multifractal nature of the Central England Temperature (CET) anomaly, a time series that spans more than 200 years. The series is analyzed as a complete data set and considering a sliding window of 11 years. In both cases, we quantify the broadness of the multifractal spectrum as well as its components defined by the deviations from the Gaussian distribution and the influence of the dependence between measurements. The results show that the chief contribution to the multifractal structure comes from the dynamical dependencies, mainly the weak ones, followed by a residual contribution of the deviations from Gaussianity. However, using the sliding window, we verify that the spikes in the non-Gaussian contribution occur at very close dates associated with climate changes determined in previous works by component analysis methods. Moreover, the strong non-Gaussian contribution found in the multifractal measures from the 1960s onwards is in agreement with global results very recently proposed in the literature.Comment: 21 pages, 10 figure

Armazenamento de sementes de castanha-do-brasil sob condições não controladas.

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Efeito do fungo micorrízico arbuscular na formação de mudas de pimenteira-do-reino.

bitstream/item/48901/1/Boletim-PD-01-AMAZ-ORIENTAL.pd