Overview of IR-Improvement in Precision LHC/FCC Physics

We present an overview of the use of IR-improvement of unintegrable singularities in the infrared regime via amplitude-based resummation in $\mathrm{QED} \times \mathrm{QCD}$ $\subset$ $\mathrm{SU}(2)_L \times \mathrm{U}_1 \times \mathrm{SU}(3)^c$. We work in the context of precision LHC/FCC physics. While illustrating such IR-improvement in specific examples, we discuss new results and new issues.Comment: Poster presentation at ICHEP2022, Bologna, Italy, July 6 - 13, 2022; 4 pages, 2 figure

Deformed phase space in a two dimensional minisuperspace model

We study the effects of noncommutativity and deformed Heisenberg algebra on the evolution of a two dimensional minisuperspace cosmological model in classical and quantum regimes. The phase space variables turn out to correspond to the scale factor of a flat FRW model with a positive cosmological constant and a dilatonic field with which the action of the model is augmented. The exact classical and quantum solutions in commutative and noncommutative cases are presented. We also obtain some approximate analytical solutions for the corresponding classical and quantum cosmology in the presence of the deformed Heisenberg relations between the phase space variables, in the limit where the minisuperspace variables are small. These results are compared with the standard commutative and noncommutative cases and similarities and differences of these solutions are discussed.Comment: 20 pages, 7 figures + 4 contourplots, to appear in CQ

On the solidification characteristics, deformation, and functionally graded interfaces in additively manufactured hybrid aluminum alloys

AlSi10Mg powder is deposited on top of a cast AA2618 substrate via laser powder bed fusion technique to form hybrid aluminum parts for additive repair purposes. The characterization of the additively manufactured (AM) hybrid aluminum alloys is conducted through advanced electron microscopy techniques across the interface, mechanical testing, validation of elasticity models, and crystallographic orientations analysis. In addition, the fracture behavior of the hybrid samples is investigated through electron microscopy analysis and the results are compared with those of AlSi10Mg and cast AA2618. The microstructural and physical properties of the hybrid bi-material are also discussed based on the solidification and diffusion phenomena. Finally, the dependency of elastic and shear moduli on the distance from the interface and solute concentration are separately evaluated via elastic-field mathematical equations. It is observed that an integrated bond is formed at the interface of the two dissimilar alloys showing suitable mechanical properties and shear strength, as well as a modified microstructure compared to the substrate material. The outcome of this work can be employed as a first step to use hybrid aluminum alloys in the blow molding industry and for repair and maintenance purposes