Have excess positrons been observed in cosmic rays?

1 Aug 200010th Workshop on Low-Energy Positron and Positronium Physics (Positron Workshop 99)NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B ... High Energy Electron-Positron Physics ... With the termination of the physics program at PETRA, and with the start of TRISTAN and the SLC and later LEP, an era of ... In the Standard Model, lepton-flavor violating processes such as e+e− → τ+e− are forbidden; however, many New Physics (NP) models allow charged lepton ... Bruno Touschek gave a talk on electron-positron collisions that would change the face of physics. Last November, 20 years after his death, physicists gathered ... Medical Physics Toggle Dropdown. Medical Physics Residency Program · Medical ... Positron Emission Tomography/Computed Tomography (PET/CT). Radiology ... Jan 4, 2012 ... ... positron emission or beta plus decay, and it is another type ... Physicist Brian Cox explains quantum physics in 22 minutes. Big Think ... The Atomic, Molecular, Optical and Positron Physics (AMOPP) group explores many different topics and has both experimental and theoretical research programs in ... Apr 28, 2022 ... This white-paper describes the current status of the field and provides R\&D short-term and long-term pathways for polarized positron sources. In particular, physics-guided deep learning will be developed to incorporate the physics domain knowledge of positronium in deep neural network. It will ... Current projects include an effort to create an electron-positron plasma, study of plasma dynamics in traps with low degrees of symmetry, and vortex dynamics.