3,003 research outputs found

    Probing the two-scale-factor universality hypothesis by exact rotation symmetry-breaking mechanism

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    We probe the two-scale factor universality hypothesis by evaluating, firstly explicitly and analytically at the one-loop order, the loop quantum corrections to the amplitude ratios for O(NN) λϕ4\lambda\phi^{4} scalar field theories with rotation symmetry-breaking in three distinct and independent methods in which the rotation symmetry-breaking mechanism is treated exactly. We show that the rotation symmetry-breaking amplitude ratios turn out to be identical in the three methods and equal to their respective rotation symmetry-breaking ones, although the amplitudes themselves, in general, depend on the method employed and on the rotation symmetry-breaking parameter. At the end, we show that all these results can be generalized, through an inductive process based on a general theorem emerging from the exact calculation, to any loop level and physically interpreted based on symmetry ideas.Comment: 17 pages, 3 figure

    Avaliação de giberela em genótipos de triticale.

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    Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel

    Progresso da fusariose em espigas de triticale.

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    Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel

    Avaliacao do uso de agua salobra na producao de mudas de especies florestais.

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    O objetivo deste trabalho foi avaliar a aplicabilidade de águas co m diferentes níveis de salinidade na região de Petrolina-PE, na produção de mudas de algaroba (Prosopis juliflora (Sw.) D.C.) e leucena (Leucaena leucocepha la (Lam.) de Wit)

    Tamanho da partícula afeta a digestibilidade do farelo de girassol em suínos.

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