Why is there an apparent asymmetry between matter and antimatter in the universe?

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 ... The depth dependent positron lifetime is measured with PLEPS at NEPOMUC. Surface analysis with topmost layer sensitivity is performed via high-energy positron ... Mar 15, 2013 ... Eighty years ago today, the journal Physical Review published a paper by physicist Carl Anderson announcing the discovery of the positron. A positron is the antiparticle of an electron. It has all the properties of an electron except for the polarity of the electrical charge, which is positive. Physics of pure and non-pure positron emitters for PET: a review and a discussion. EJNMMI Phys. 2016 Dec;3(1):8. doi: 10.1186/s40658-016-0144-5. Epub 2016 May ... 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 ... https://www.khanacademy.org/science/physics/quantum-physics/in-in-nuclei/v ... Are protons positive because they have a positron, and neutrons neutral because ... Medical Physics Toggle Dropdown. Medical Physics Residency Program · Medical ... Positron Emission Tomography/Computed Tomography (PET/CT). Radiology ... KT.POV - Positron Annihilation: Coincidence Spectroscopy. This experiment is currently not available. We demonstrate the positron life time spectroscopy ... The Atomic, Molecular, Optical and Positron Physics (AMOPP) group explores many different topics and has both experimental and theoretical research programs in ...