Analysis of resonance multipoles from polarization observables in eta photoproduction

A combined analysis of new eta photoproduction data for total and differential cross sections, target asymmetry and photon asymmetry is presented. Using a few reasonable assumptions we perform the first model-independent analysis of the E0+, E2- and M2- eta photoproduction multipoles. Making use of the well-known A3/2 helicity amplitude of the D13(1520) state we extract its branching ratio to the eta-N channel, Gamma(eta,N)/Gamma = (0.08 +- 0.01)%. At higher energies, we show that the photon asymmetry is extremely sensitive to small multipoles that are excited by photons in the helicity 3/2 state. The new GRAAL photon asymmetry data at higher energy show a clear signal of the F15(1680) excitation which permits extracting an F15(1680)->eta,N branching ratio of (0.15 +0.35 -0.10)%.Comment: 14 pages of LATEX including 7 postscript figure

Effect of Inter-Organizational Systems Use on Supply Chain Capabilities and Performance

Part 2: Big Data and Business IntelligenceInternational audienceInter-Organizational Systems (IOS), which are information systems that extend beyond organizational borders, have seen growing use in linking companies to their supply chain partners. This paper empirically explores the relationship between IOS use, Supply Chain Capabilities, and Supply Chain Performance. The research model proposes that IOS use directly enhances Supply Chain Performance, and indirectly enhances Supply Chain Performance through Supply Chain Capabilities. To test the model, a survey of 200 firms operating in Ghana that use IOS was conducted. Analysis of the model was conducted using Partial Least Squares Structural Equation Modeling techniques. The results of the study confirmed that IOS use positively impacted Supply Chain Capabilities and Supply Chain Performance. Supply Chain Capabilities also positively impacted Supply Chain Performance. Additionally, Supply Chain Capabilities was found to partially mediate the effect of IOS use on Supply Chain Performance. Implications of the study for research and practice are discussed