<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker"^^ . "The soft-photon puzzle has been an open problem in high energy particle physics for many years\r\nnow. Experiments have been performed in the past to try to measure the soft-photon spectrum of\r\ninelastic m → n scattering processes. Some measured an excess of a factor 4–8 in terms of the internal\r\nbremsstrahlung spectrum predicted by Low’s theorem, but others measured no excess at all. This\r\nwork presents for the first time a full Monte Carlo simulation with generated internal bremsstrahlung\r\nphotons predicted by Low’s theorem propagated through the detector setup of ALICE 3. One of the\r\ngoals of the proposed ALICE 3 experiment is to measure the soft-photon spectrum with the use of\r\nthe Forward Conversion Tracker through the tracking of e+e− conversion pairs in a separate dipole\r\nmagnetic field. Through dedicated studies of the (spatial) origin of the various sources of background,\r\ncuts and vetoes are implemented to minimize its impact on the measurement. These studies show\r\na significance of 5–10 in the regime of 0.5 < kT < 7.5 MeV/c for the case where the excess is 4\r\ntimes the predicted internal bremsstrahlung spectrum. A conical modification of the beam pipe is\r\nsuggested to reduce the material budget in front of the FCT and as such the kinematic regime where\r\nthe significance exceeds 5 is extended to 0.5 < kT < 10 MeV/c for the case where the excess is 4 times\r\nthe predicted internal bremsstrahlung spectrum. In this thesis the theory, previous measurements and\r\nthe performance of the proposed Forward Conversion Tracker will be discussed."^^ . "2025" . . . . . . . "Casper Arie"^^ . "van Veen"^^ . "Casper Arie van Veen"^^ . . . . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (PDF)"^^ . . . "Doctoral thesis Cas van Veen.pdf"^^ . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Simulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #36824 \n\nSimulation Studies for Measuring the Soft-Photon Spectrum with the ALICE 3 Forward Conversion Tracker\n\n" . "text/html" . . . "500 Naturwissenschaften und Mathematik"@de . "500 Natural sciences and mathematics"@en . . . "530 Physik"@de . "530 Physics"@en . .