Proceedings Of The 2011 Theoretical Advanced Study Institute In Elementary Particle Physics
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Proceedings of the 2011 Theoretical Advanced Study Institute in Elementary Particle Physics
This volume is a compilation of the lectures at TASI 2011, held in Boulder, Colorado, June 2011. They cover topics in theoretical particle physics including the Standard Model and beyond, collider physics, dark matter, and cosmology, at a level intended to be accessible to students at the initial stages of their research careers.
Production Yield of Muon-Induced Neutrons in Lead
The work presented in this book is a major step towards understanding and eventually suppressing background in the direct search for dark matter particles scattering off germanium detectors. Although the flux of cosmic muons is reduced by many orders of magnitude in underground laboratories, the remaining energetic muons induce neutrons through various processes, neutrons that can potentially mimic a dark matter signal. This thesis describes the measurement of muon-induced neutrons over more than 3 years in the Modane underground laboratory. The data are complemented by a thorough modeling of the neutron signal using the GEANT4 simulation package, demonstrating the appropriateness of this tool to model these rare processes. As a result, a precise neutron production yield can be presented. Thus, future underground experiments will be able to reliably model the expected rate of muon-induced neutrons, making it possible to develop the necessary shielding concept to suppress this background component.
Cosmological Implications of Quantum Anomalies
The successes of the standard models of particle physics and cosmology are many, but have proven incapable of explaining all the phenomena that we observe. This book investigates the potentially important role of quantum physics, particularly quantum anomalies, in various aspects of modern cosmology, such as inflation, the dynamical generation of the visible and dark matter in the universe, and gravitational waves. By doing so, the authors demonstrate that exploring the links between cosmology and particle physics is key to helping solve the mysteries of our Universe.