Beyond Standard Model
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Field parametric geostatistics - An alternative to tackle gold grade estimations
Abstract High anomalous grades are very common in gold deposits, whose presence requires careful treatment to prevent overestimation of metal content. Mineral resource analysts have worked on the estimation of several gold deposits, and none of the classical methods were able to avoid manual interventions, such as cutting high grades for local estimation or
REM, Int. Eng. J.. Publicado em: 2019-03
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2. Adoção de IFRS e gerenciamento de resultado nas empresas brasileiras de capital aberto / Adoption of IFRS e earnings management in Brazilian public companies.
The Brazilian accounting has undergone regulatory changes that have left their statements according to international standard. Research conducted with publicly traded companies in various countries around the world indicate that this new standard tends to improve the quality of information and make it more comparable and transparent. Thus, the study aims to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/10/2012
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3. PHENOMENOLOGY OF NEUTRINOS AND PHYSICS BEYOND THE STANDARD MODEL / FENOMENOLOGIA DE NEUTRINOS E FÍSICA ALÉM DO MODELO PADRÃO
Com o avanço na medida dos parâmetros responsáveis por oscilação de neutrinos, podemos dizer que hoje a física de neutrinos está entrando na era da precisão, o que nos permite explorar cenários além de massas e misturas de três sabores de neutrinos, ou seja, podemos procurar uma nova física que cause algum efeito subdominante, que não pode ser e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2012
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4. Nicotine receptor partial agonists for smoking cessation
BACKGROUND: Nicotine receptor partial agonists may help people to stop smoking by a combination of maintaining moderate levels of dopamine to counteract withdrawal symptoms (acting as an agonist) and reducing smoking satisfaction (acting as an antagonist). OBJECTIVES: The primary objective of this review is to assess the efficacy and tolerability of nicotine
Sao Paulo Med. J.. Publicado em: 2012
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5. Fenomenologia dos decaimentos de neutrinos de supernova / Decay phenomenology of supernova neutrinos
Here we present a study of the phenomenology of neutrinos, which starts with a model beyond the Standard Model, which generates mass and decay to neutrinos. The model was proposed by Gelmini and Roncadelli cite Gelmini: 1981, the model needs a triplet that interacts with the scaling doublet Higgs through different potential climb. The triplet also interacts
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/11/2011
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6. Interações não-padrão (NSNI) : restrições fenomenológicas / Non-standard neutrino interactions (NSNI) : phenomenological constrains
Estudamos as restrições fenomenologicas dos parâmetros das interações não-padrão de neutrinos (NSNI) com elétrons, usando os efeitos dessas interações tanto na detecção quanto na propagação, de maneira independente do modelo. As NSNI, a baixa energia, foram geradas da invariância pelo grupo de gauge do modelo padrão (SM), evitando os processo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2010
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7. Sinais de produção de novos bósons vetoriais no LHC / Signals of production of new vector bosons at the LHC
In this work we performed a phenomenological observation of new spin-1 bosons associated with the Electroweak Symmetry Breaking sector. As motivation for this analysis we previously studied the special case of models based on the mechanism of Eletroweak Symmetry Breaking via Boundary Conditions, which also have a tower vector of Kaluza-Klein bosons ensuring
Publicado em: 2009
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8. Forward Physics at the LHC: within and beyond the Standard Model
We review the detection capabilities in the forward direction of the various LHC experiments together with the associated physics programme. A selection of measurements accessible with near-beam instrumentation in various sectors (and extensions) of the Standard Model (SM) is outlined, including QCD (diffractive and elastic scattering, low-x parton dynamics,
Brazilian Journal of Physics. Publicado em: 2008-09
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9. GROWTH AND YIELD OF Pinus taeda L. IN THE CAMPOS DE CIMA DA SERRA REGION, RIO GRANDE DO SUL. / CRESCIMENTO E PRODUÇÃO DE Pinus taeda L. NA REGIÃO DOS CAMPOS DE CIMA DA SERRA, RIO GRANDE DO SUL.
This thesis was carried through as objective to study the growth and the yield of a stand of Pinus taeda L., implanted in 1987, in an initial spacing of 3 x 2 meters, located in the Farming Farm of the Ipê Ltda, in the city of CanelaRS. This stand was management in high shaft system, with thinning underneath, for the wooden yield of great dimensions. To rea
Publicado em: 2008
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10. Asymmetries in the littlest Higgs model
Little Higgs models were recently proposed as an alternative for models of electroweak symmetry breaking. They can be regarded as one of the important candidates of the new physics beyond the Standard Model. We consider here the phenomenology of the minimal model of this type, the "Littlest Higgs Model" (LHM). It predicts the existence of the new gauge boson
Brazilian Journal of Physics. Publicado em: 2007-07
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11. Physics Beyond Standard Model in Theories with Extra Dimensons / "Física além do modelo padrão em teorias com dimensões extras"
The goal of this dissertation is to study theories that use extra dimensions to solve the problems that appear in the Standard Model at energies of the order 1 TeV. Specifically, we worked with models with more than 4 dimensions, where the spatial dimensions are compactified in an S1/Z2 orbifold. The Standard Model agrees to a great degree with the experimen
Publicado em: 2007
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12. Freedom, macroeconomics and wappiness: an empirical analisys of a panel of countries / Liberdade, macroeconomia e felicidade: uma análise empírica de um painel de países
This dissertation brings evidence on the role of the main macroeconomic variables and freedom on individual happiness. Using microdata from subjective wellbeing surveys from 74 countries, we estimate an Ordered Probit Model. Based on a standard microeconometric specification, we show that macroeconomics influences wellbeing directly. Even after controlling f
Publicado em: 2007