Fisher matrix forecasts for astrophysical tests of the stability of the fine-structure constant

We use Fisher Matrix analysis techniques to forecast the cosmological impact of astrophysical tests of the stability of the fine-structure constant to be carried out by the forthcoming ESPRESSO spectrograph at the VLT (due for commissioning in late 2017), as well by the planned high-resolution spectrograph (currently in Phase A) for the European Extremely Large Telescope. Assuming a fiducial model without $\alpha$ variations, we show that ESPRESSO can improve current bounds on the E\"{o}tv\"{o}s parameter---which quantifies Weak Equivalence Principle violations---by up to two orders of magnitude, leading to stronger bounds than those expected from the ongoing tests with the MICROSCOPE satellite, while constraints from the E-ELT should be competitive with those of the proposed STEP satellite. Should an $\alpha$ variation be detected, these measurements will further constrain cosmological parameters, being particularly sensitive to the dynamics of dark energy.Comment: Phys. Lett. B (in press

Fisiologia da mandioca.

A mandioca (Manihot esculenta Crantz) que pertence a familia Euphorbiaceae e um arbusto de crescimento perence amplamente cultivado nos tropicos onde representa o alimento basico como fonte de energia para grande parte da populacao. Seu cultivo e realizado quase que exclusivamente devido suas raizestuberosas constituidas principalmente de amido. Tanto as raizes de reserva como a folhagem tambem sao utilizadas na alimentacao animal. Estima-se que aproximadamente, 65% da producao total da mandioca e utilizada diretamente para o consumo humano, 19% para alimentacao animal e cerca de 5% e empregado em uso industrial.bitstream/item/88961/1/Fisiologia-da-Mandioca-Alfredoid6944.pdfTrabalho apresentado no 7º Curso Intensivo Nacional de Mandioca, 1990

Collider Detection of Dark Matter Electromagnetic Anapole Moments

Dark matter that interacts with the Standard Model by exchanging photons through higher multipole interactions occurs in a wide range of both strongly as well as weakly coupled hidden sector models. We study the collider detection prospects of these candidates, with a focus on Majorana dark matter that couples through the anapole moment. The study is conducted at the effective field theory level with the mono-$Z$ signature incorporating varying levels of systematic uncertainties at the high-luminosity LHC. The projected collider reach on the anapole moment is then compared to the reach coming from direct detection experiments like LZ. Finally, the analysis is applied to a weakly coupled completion with leptophilic dark matter.Comment: 24 pages, 9 figure