348 research outputs found
AdS pure spinor superstring in constant backgrounds
In this paper we study the pure spinor formulation of the superstring in
around point particle solutions of the classical equations of
motion. As a particular example we quantize the pure spinor string in the BMN
background.Comment: 17 pages. Typos corrected. References adde
Public sector debt dynamics in Brazil
1. INTRODUCTION 2. POLICY MIX AND THE PUBLIC-SECTOR NET DEBT 3. SKELETONS IN THE CLOSET, PRIVATIZATION PROCEEDS AND SEIGNIORAGE 4. SIMULATING DEBT DYNAMICS 5. SENSITIVITY ANALYSIS 6. CONCLUDING REMARKS APPENDIX: THE SIMULATION MODEL
Soft supersymmetry breaking in the nonlinear sigma model
In this work we discuss the dynamical generation of mass in a deformed supersymmetric nonlinear sigma model in a two-dimensional ()
space-time. We introduce the deformation by imposing a constraint that softly
breaks supersymmetry. Through the tadpole method, we compute the effective
potential at leading order in expansion showing that the model exhibit a
dynamical generation of mass to the matter fields. Supersymmetry is recovered
in the limit of the deformation parameter going to zero.Comment: 9 pages, 2 figures. Revised version. arXiv admin note: text overlap
with arXiv:1308.471
Interação do parasitoide Melittobia australica Girault (Hymenoptera: Eulophidae) com a vespa solitária Sceliphron asiaticum Linneaus (Hymenoptera: Sphecidae) no Brasil.
Autoria: QUERINO [i.e. SILVA], R. B. Q. da. RANYSE BARBOSA QUERINO DA SILV
Rendimento de grãos de trigo e tricale com utilização de torta de mamona.
bitstream/item/36425/1/boletim-128.pd
Indicações técnicas para produção de sementes de plantas recuperadoras de solo para a agricultura familiar.
bitstream/CPACT-2009-09/11809/1/documento_227.pd
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