The standard model (SM) of particle physics is a hugely successful theory of nature, but it is incomplete. E.g., it cannot explain finite SM neutrino masses or the origin of the primordial baryon asymmetry (BAU). One way to address such problems is to postulate the existence of new but hidden particles. This thesis studies such "hidden sectors" in two ways: 1) An effective theory approach, where electroweak (EW) and GeV scale portal effective theories (PETs) are constructed that couple the SM to a generic light hidden mediator of spin 0, 1⁄2, or 1. The EW scale PETs include all portal operators of dimension d≤5. The GeV scale PETs additionally include all leading order (LO) flavour changing portal operators of dimension d≤6,7. They are used to derive a LO PET chiral perturbation theory Lagrangian that describes hidden sector induced light meson transitions in fixed target experiments like NA62 or SHiP. 2) An investigation of the type-I seesaw model, which couples the SM to n≥2 sterile neutrinos that can generate a BAU via “leptogenesis”. It is shown that thermal and spectator effects can result in a sign-flip and strong relative enhancement of the BAU in high-scale leptogenesis with two hierarchical sterile neutrinos of vanishing initial abundance. Much lighter sterile neutrinos may be detected via lepton number violating (LNV) decays at colliders, but LNV decays could be suppressed relative to lepton number conserving decays for 't Hooft natural parameter choices. It is shown that the corresponding parameter space consists of three regions: (a)with unsuppressed LNV decays, (b)with suppressed LNV decays, (c)with suppressed and unsuppressed LNV decays.
The standard model (SM) of particle physics is a hugely successful theory of nature, but it is incomplete. E.g., it cannot explain finite SM neutrino masses or the origin of the primordial baryon asymmetry (BAU). One way to address such problems is to postulate the existence of new but hidden particles. This thesis studies such "hidden sectors" in two ways: 1) An effective theory approach, where electroweak (EW) and GeV scale portal effective theories (PETs) are constructed that couple the SM to a generic light hidden mediator of spin 0, 1⁄2, or 1. The EW scale PETs include all portal operators of dimension d≤5. The GeV scale PETs additionally include all leading order (LO) flavour changing portal operators of dimension d≤6,7. They are used to derive a LO PET chiral perturbation theory Lagrangian that describes hidden sector induced light meson transitions in fixed target experiments like NA62 or SHiP. 2) An investigation of the type-I seesaw model, which couples the SM to n≥2 sterile neutrinos that can generate a BAU via “leptogenesis”. It is shown that thermal and spectator effects can result in a sign-flip and strong relative enhancement of the BAU in high-scale leptogenesis with two hierarchical sterile neutrinos of vanishing initial abundance. Much lighter sterile neutrinos may be detected via lepton number violating (LNV) decays at colliders, but LNV decays could be suppressed relative to lepton number conserving decays for 't Hooft natural parameter choices. It is shown that the corresponding parameter space consists of three regions: (a)with unsuppressed LNV decays, (b)with suppressed LNV decays, (c)with suppressed and unsuppressed LNV decays.
‘Reading the Canon’ explores the relation between the production of literary value and the problem of periodization, tracing how literary tastes, particular reader communities, and sites of literary learning shape the organization of literature in historical perspective. Rather than suggesting a political critique of the canon, this book shows that the production of literary relevance and its tacit hierarchies of value are necessary consequences of how reading and writing are organized as social practices within different fields of literary activity. ‘Reading the Canon’ offers a comprehensive theoretical account of the conundrums still defining contemporary debates about literary value; the book also features a series of historically-inflected author studies—from classics, such as Shakespeare and Thomas Pynchon, to less likely figures, such as John Neal and Owen Johnson—that illustrate how the idea of literary relevance has been appropriated throughout history and across a variety of national and transnational literary institutions.
Offering a comprehensive and structured analysis of the reasons why the EU lacks external coherence towards Russia, this book presents important new insights to the topic beyond conventional institutionalist arguments. Philipp Thaler utilises key cases in external energy and human rights policies to highlight the on-going difficulties in creating a coherent position, despite the EU’s formally stated objective to achieve this.
This book proposes an integrated approach to patent risk and capital budgeting in pharmaceutical research and development (R and D), developing an option-based view (OBV) of imperfect patent protection, which draws upon contingent-claims analysis, stochastic game theory, as well as novel numerical methods. The text re-initiates a discussion about the contribution of quantitative frameworks to value-based R and D management.
Historicizing both emotions and politics, this open access book argues that the historical work of emotion is most clearly understood in terms of the dynamics of institutionalization. This is shown in twelve case studies that focus on decisive moments in European and US history from 1800 until today. Each case study clarifies how emotions were central to people’s political engagement and its effects. The sources range from parliamentary buildings and social movements, to images and speeches of presidents, from fascist cemeteries to the International Criminal Court. Both the timeframe and the geographical focus have been chosen to highlight the increasingly participatory character of nineteenth- and twentieth-century politics, which is inconceivable without the work of emotions.
A comprehensive account of how German and American historians after World War II tackled the question of the roots of National Socialism, History After Hitler traces the development of a transatlantic scholarly community as a key part of the intellectual history of the Federal Republic and of Cold War German-American relations.
This monumental study of Johann Sebastian Bach ranks among the great classics of musicology. Since its first publication in 1873–80, it has remained the basic work on Bach and the foundation of later research and study. The three-part treatment describes in chronological sequence practically everything that is known of the composer's life: his ancestry, his immediate family, his associations, his employers, and the countless occasions on which his musical genius emerged. Author Philipp Spitta accompanies this biographical material with quotations from primary sources: correspondence, family records, diaries, official documents, and more. In addition to biographical data, Spitta reviews Bach's musical production, with analyses of more than 500 pieces, covering all the important works. More than 450 musical excerpts are included in the main text, and a 43-page musical supplement illustrates longer passages. Despite the scholarly nature of this work, it also has the rare distinction of being a study that can be read with considerable enjoyment and great profit by every serious music lover, with or without a substantial background in the history of music or musical theory.
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