New precise unpolarised differential cross sections of deuteron–proton elastic scattering have been measured at 16 different deuteron beam momenta between pd=3120.17MeV/c and pd=3204.16MeV/c at the ...COoler SYnchrotron COSY of the Forschungszentrum Jülich. The data, which were taken using the magnetic spectrometer ANKE, cover the equivalent range in proton kinetic energies from Tp=882.2MeV to Tp=918.3MeV. The experimental results are analysed theoretically using the Glauber diffraction model with accurate nucleon–nucleon input. The theoretical cross section at Tp=900MeV agrees very well with the experimental one at low momentum transfers t. There are, however, significant deviations for |t|>0.2(GeV/c)2 that must be investigated further.
In order to meet the requirements of the High Luminosity LHC (HL-LHC), it will be necessary to replace the current tracker of the ATLAS experiment. Therefore, a new all-silicon tracking detector is ...being developed, the so-called Inner Tracker (ITk). The use of quad chip modules is intended in its pixel region. These modules consist of a silicon sensor that forms a unit along with four read-out chips. The current ATLAS pixel detector consists of planar n-in-n silicon pixel sensors. Similar sensors and four FE-I4 read-out chips were assembled to first prototypes of planar n-in-n quad modules. The main focus of the investigation of these modules was the region between the read-out chips, especially the central area between all four read-out chips. There are special pixel cells placed on the sensor which cover the gap between the read-out chips. This contribution focuses on the characterization of a non-irradiated device, including important sensor characteristics, charge collection determined with radioactive sources as well as hit efficiency measurements, performed in the laboratory and at testbeams. In addition, first laboratory results of an irradiated device are presented.
Industrie 4.0 (140), i.e. the implementation of cyber-physical systems along the entire value chain and a far reaching digitalization of products and processes, is regarded as a significant agent of ...change in our current industrial system. While the previous discussion of I40 has been centered on technologies and standards, our focus is on business models (BM) for and enabled by I40. Having the right I40 BM will ultimately decide about companies' market positions and profitability. This calls for a systematic process for business model innovation (BMI). The previous academic literature has offered mostly conceptual reviews to date. Empirical analyses of management approaches and processes applied for BMI are scarce. Based on an exploratory research design, we present the results of a comparative interview study with large companies and industry associations. We analyze I40 business model characteristics, provide an in-depth perspective of companies' processes, structures and tools for BMI and derive upcoming practices as well as key competencies for BMI in the course of I40. Our results indicate a diverse picture. While some companies have dedicated BMI structures in place and lead I40 BMI, others could benefit from complementing existing product and service development with a systematic approach to BMI, building the fundamental capability to exploit the opportunities of I40.
The deuteron tensor analysing power T sub(20)T20 of the d arrow right p arrow right He3 eta reaction has been measured at the COSY-ANKE facility in small steps in excess energy Q up to Q=11 MeVQ=11 ...MeV. Despite the square of the production amplitude varying by over a factor of five through this range, T sub(20)T20 shows little energy dependence. This is evidence that the final state interaction causing the energy variation is not influenced by the spin configuration in the entrance channel. The weak angular dependence observed for T sub(20)T20 provides useful insight into the amplitude structure near threshold.
The deuteron tensor analysing power T20 of the d→p→He3η reaction has been measured at the COSY-ANKE facility in small steps in excess energy Q up to Q=11 MeV. Despite the square of the production ...amplitude varying by over a factor of five through this range, T20 shows little energy dependence. This is evidence that the final state interaction causing the energy variation is not influenced by the spin configuration in the entrance channel. The weak angular dependence observed for T20 provides useful insight into the amplitude structure near threshold.
The ANKE spectrometer (Apparatus for studies of Nucleon and Kaon Ejectiles) situated at the COSY of the Froschungszentrum Jülich is well suited to investigate η meson production in deuteron–proton ...collisions, especially close to threshold. By studying the reaction dp→3Heη, differential and total cross sections as well as the η meson mass have been determined with high accuracy. The very rapid rise of the total cross section to its maximum value within the first 0.5 MeV above the threshold implies a very large 3Heη scattering length, i.e., a very strong 3Heη final state interaction, and might indicate the presence of a quasi-bound state extremely close to threshold. In order to clarify the unambiguous η meson mass situation, a new measurement investigating the dp→3Heη reaction at 12 fixed energies at COSY-ANKE was conducted. Using this two-body reaction, the η meson mass can be extracted from pure kinematics through the determination of the production threshold. This requires to measure the 3Heη final state momenta pf and the associated beam momenta pd with highest precision.
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