95 research outputs found
The effect of Wilson line moduli on CP-violation by soft supersymmetry breaking terms
The CP-violating phases in the soft supersymmetry-breaking sector in orbifold
compactifications with a continuous Wilson line are investigated. In this case
the modular symmetry is the Siegel modular group of genus two. In
particular, we study the case that the hidden sector non-perturbative
superpotential is determined by the Igusa cusp form of modular
weight 12. The effect of large non-perturbative corrections to the dilaton
K\"ahler potential on the resulting CP-violating phases is also investigated.Comment: LaTeX file, 12 pages plus 7 figures, to appear in Phys.Lett.
Absorption and quasinormal modes of classical fields propagating on 3D and 4D de Sitter spacetime
We extensively study the exact solutions of the massless Dirac equation in 3D
de Sitter spacetime that we published recently. Using the Newman-Penrose
formalism, we find exact solutions of the equations of motion for the massless
classical fields of spin s=1/2,1,2 and to the massive Dirac equation in 4D de
Sitter metric. Employing these solutions, we analyze the absorption by the
cosmological horizon and de Sitter quasinormal modes. We also comment on the
results given by other authors.Comment: 31 page
ProgĂȘnies de seringueira com potencial para conferir resistĂȘncia a ĂĄcaros (Calacarus heveae Feres e Tenuipalpus heveae Baker)
Modelo de suprimento sanguĂneo do intestino grosso do tamanduĂĄ bandeira (Myrmecophaga tridactyla)
Anålise conjunta de ensaios de cultivares de milho por classes de interação genótipo x ambiente
Chave de identificação: anfĂbios anuros da vertente de JundiaĂ da Serra do Japi, Estado de SĂŁo Paulo
InfluĂȘncia do descarte involuntĂĄrio de matrizes no impacto econĂŽmico da mastite em rebanhos leiteiros
Desempenho, digestibilidade e balanço de nitrogĂȘnio em cordeiros alimentados com silagem de milho ou cana-de-açĂșcar e dois nĂveis de concentrado
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