Sebastian Klein Knihy

The production of heavy quarks in high-energy experiments offers a rich field to study, both experimentally and theoretically. Due to the additional quark mass, the description of these processes in the framework of perturbative QCD is much more demanding than it is for those involving only massless partons. In the last two decades, a large amount of precision data has been collected by the deep inelastic HERA experiment. In order to make full use of these data, a more precise theoretical description of charm quark production in deep inelastic scattering is needed. This work deals with the first calculation of fixed moments of the NNLO heavy flavor corrections to the proton structure function F2 in the limit of a small charm-quark mass. The correct treatment of these terms will allow not only a more precise analysis of the HERA data, but starting from there also a more precise determination of the parton distribution functions and the strong coupling constant, which is an essential input for LHC physics. The complexity of this calculation requires the application and development of technical and mathematical methods, which are also explained here in detail.

How best to adapt established companies to a rapidly changing economy has long been a topic of debate in both the corporate and academic worlds. This challenge is especially pressing for large organizations that may have grown top-heavy and rigid with time but now need to be light on their feet to stay relevant and profitable. Until now, the best attempts have consisted of plucking tools and methods from the world of start-ups and applying them wholesale in large corporate environments. Most of these efforts have either fizzled or failed outright because they lacked a framework for a comprehensive corporation-sized rollout. <i>The Loop Approach</i> introduces a new series of methods that could help change the course of operations for even the most colossal organizations. Sebastian Klein and Ben Hughes provide a wide-ranging set of guidelines for achieving corporate agility, complete with checklists and worksheets that should prove instantly applicable. Want proof? The methods outlined in <i>The Loop Approach</i> have already been successfully implemented at such European corporate giants as Audi, Deutsche Bahn, and Telekom.

Im Kreis drehen, um voranzukommen... ... klingt erstmal wie ein Widerspruch, ist aber keiner! Seit Jahren wissen Manager*innen und Unternehmenslenker*innen, dass ihre Organisationsstrukturen nicht zukunftsfähig sind. Schnell rollte die Welle der »agilen Methoden« heran und versprach rasche Besserung. Doch was in Start-ups und Innovationsteams funktioniert, lässt sich nicht automatisch einem ganzen Konzern überstülpen! Da kann man einzelne Tools ausprobieren so viel man will: Ohne das richtige Framework lassen sich starre Strukturen größerer Unternehmen nicht flexibilisieren. Genau das kann der Loop-Approach, der mithilfe eines iterativen Prozesses auch den größten Koloss in Bewegung setzt. Praxiserprobt bei Unternehmen wie Audi, Deutsche Bahn, Roche und Telekom.

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