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Maekawa, Claudio Masumi
(2008)
In a previous work we applied a discrete symmetry (Z' 2) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...
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Maekawa, Claudio Masumi; Rodriguez, Marcos Cardoso
(2008)
In a previous work we applied a discrete symmetry (Z′ 2 ) in order to light fermions acquire mass only at one loop level. This symmetry and the assumption of alignment between fermions and sfermions allow us to avoid FCNC ...
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Duarte, Luciana Tavares; Lins, Vanessa de Freitas Cunha; Mariano, César; Branco, José Roberto Tavares; Collares, Magno Pinto; Galery, Roberto
(2003)
Neste trabalho foram analisados recobrimentos de poli(tereftalato de etileno), PET, depositados em aço carbono através da técnica de aspersão térmica à combustão, e produzidos a partir de pós oriundos de processos de moagem, ...
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Rodrigues, Sheyla Costa; Maraschin, Cleci; Laurino, Débora Pereira
(2008)
Este trabalho tem por objetivo discutir a formação de professores numa rede de conversação sustentada pelas tecnologias da informação e comunicação. Compreender a formação de professores em rede possibilita pensar com o ...
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Valverde, Juan Segundo; Pazetti, Márcio
(2006)
We propose a SUSY variant of the action for a massless spinning particles via the inclusion of twistor variables. The action is constructed to be invariant under SUSY transformations and -reparametrizations even when an ...
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Lunardi, José Tadeu Teles; Escobar, Bruto Max Pimentel; Teixeira, Randall Guedes; Salvador, Juan Segundo Valverde
(2000)
Two problems relative to the electromagnetic coupling of Duffin-Kemmer-Petiau (DKP) theory are discussed: the presence of an anomalous term in the Hamiltonian form of the theory and the apparent difference between the ...
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Almeida, Maria Teresa de Albernaz; Santos, Arion de Castro Kurtz dos
(2001)
O desenvolvimento de modelos semiquantitativos, através do programa VISQ, que têm como base a Dinâmica de Sistemas, permitiu, com a utilização de técnicas e ferramentas de elicitação de conhecimento,
o desenvolvimento de ...
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Crispino, Luís Carlos Bassalo; Silva, André Ricardo Rocha da; Matsas, George Emanuel Avraam
(2008)
We investigate the radiation emitted from a scalar source in circular orbit around a Reissner- Nordstr¨om black hole. Particle and energy emission rates are analytically calculated in the low- and high-frequency regimes ...
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Padula, Sandra dos Santos; Socolowski Junior, Otavio; Csörgö, Tamás; Nagy, Martón
(2008)
Squeezed correlations of particle antiparticle pairs, also called Back-to-
Back Correlations, are predicted to appear if the hadron masses are modified in the
hot and dense hadronic medium formed in high energy nucleus-nucleus ...
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Padula, Sandra dos Santos; Socolowski Junior, Otavio
(2010)
Squeezed correlations of particle antiparticle pairs were predicted to exist if the hadron masses were modified in the hot and dense medium formed in high energy heavy ion collisions. Although well-established theoretically,they ...
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Dalla Porta, Oneisa Brasil; Krauspenhar, Thiago; Góes, Evamberto Garcia de; Alves, Nelson Mendes
(2003)
A série de exposições relativas necessárias para produzir um intervalo útil de densidades ópticas no filme pode ser obtida pelos métodos sensitométricos de tempo escalonado ou intensidade escalonada. Um sensitômetro de ...
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Donatelli, Gustavo Daniel; Konrath, Andrea Cristina
(2005)
Neste artigo explora-se a aplicação da simulação computacional na avaliação de incertezas de medição. Apresenta brevemente o método clássico ou de propagação de incertezas, sua formulação e suas limitações. A seguir, ...
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Santos, Arion de Castro Kurtz dos; Ogborn, Jon
(1994)
The paper presents the main conclusions of an exploratory study of the ability of Sixth form students in England to use some different approaches to computational modelling. The research involves a questionnaire survey of ...
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Bellicanta, Leandro Sebben; Gomes, Sebastião Cícero Pinheiro
(2008)
Este artigo é um estudo teórico e experimental da dinâmica de uma lâmina flexível acoplada a um atuador do tipo Harmonic Drive. Como resultado principal, é apresentada uma técnica que permite, a partir dos dados fornecidos ...
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Mariotto, Cristiano Brenner; Ducati, Maria Beatriz de Leone Gay; Ingelman, Gunnar
(2002)
Both hard and soft QCD dynamics are important in charmonium production, as presented here through a next-to-leading order QCD matrix element calculation combined with the color evaporation model. The observed xF and p⊥ ...
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Silva, Pablo Gustavo Albuquerque Braz e; Schütz, Lineia; Zingano, Paulo Ricardo de Avila
(2009)
We describe a Moser-type iteration procedure to derive decay esti- mates for solutions u(_; t) of very general advection-di_usion equations in n-dimensional space, assuming u(_; 0) = u0 2 Lp(Rn), 1 _ p < 1. A number of ...
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Padula, Sandra dos Santos; Dudek, Danuce Marcele; Socolowski Junior, Otavio
(2010)
Squeezed correlations of hadron-antihadron pairs are predicted to appear if their masses are modified in the hot and dense medium formed in high energy heavy ion collisions. If discovered experimentally, they would be an ...
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Padula, Sandra dos Santos; Dudek, Danuce Marcele; Socolowski Junior, Otavio
(2009)
A novel type of correlation involving particle-antiparticle pairs was found out in the 1990’s. Currently known as squeezed or Back-to-Back Correlations (BBC), they should be present if the hadronic masses are
modified in ...
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Santos, Arion de Castro Kurtz dos; Thielo, Marcelo Resende; Kleer, Ana Alzira
(1997)
This work is based on a Brazilian project that aims to promote the use of a semi-quantitative tool with students (11 - 18 years old) in topics about local environmental problems. The paper presents the VISQ program, a ...
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Andrade, Rone Peterson Galvão de; Hama, Yogiro; Grassi, Frédérico; Socolowski Junior, Otavio; Kodama, Takeshi
(2007)
Elliptic flow at RHIC is computed event by event with NeXSPheRIO. Reasonable agreement with experimental data on v2(h) and v2(pt) is obtained. Various effects are studied as well: equation of state (with or without critical ...