Limits on a Composite Higgs Boson

Precision electroweak data are generally believed to constrain the Higgs boson mass to lie below approximately 190 GeV at 95% confidence level. The standard Higgs model is, however, trivial and can only be an effective field theory valid below some high energy scale characteristic of the underlying non-trivial physics. Corrections to the custodial isospin violating parameter T arising from interactions at this higher energy scale dramatically enlarge the allowed range of Higgs mass. We perform a fit to precision electroweak data and determine the region in the (m_H, Delta T) plane that is consistent with experimental results. Overlaying the estimated size of corrections to T arising from the underlying dynamics, we find that a Higgs mass up to 500 GeV is allowed. We review two composite Higgs models which can realize the possibility of a phenomenologically acceptable heavy Higgs boson. We comment on the potential of improvements in the measurements of m_t and M_W to improve constraints on composite Higgs models.Comment: 9 pages, 2 eps figures. Shortened for PRL; some references elminate

A short course in general relativity and cosmology

Unlike most traditional introductory textbooks on relativity and cosmology that answer questions like “Does accelerated expansion pull our bodies apart?”, “Does the presence of dark matter affect the classical tests of general relativity?” in a qualitative manner, the present text is intended as a foundation, enabling students to read and understand the textbooks and many of the scientific papers on the subject. And, above all, the readers are taught and encouraged to do their own calculations, check the numbers and answer the above and other questions regarding the most exciting discoveries and theoretical developments in general relativistic cosmology, which have occurred since the early 1980s. In comparison to these intellectual benefits the text is short. In fact, its brevity without neglect of scope or mathematical accessibility of key points is rather unique. The authors connect the necessary mathematical concepts and their reward, i.e. the understanding of an important piece of modern physics, along the shortest path. The unavoidable mathematical concepts and tools are presented in as straightforward manner as possible. Even though the mathematics is not very difficult, it certainly is beneficial to know some statistical thermodynamics as well as some quantum mechanics. Thus the text is suitable for the upper undergraduate curriculum

Austrian Transition to Open Access (AT2OA)

„Austrian Transition to Open Access (AT2OA)“ ist ein Hochschulraumstrukturmittelprojekt zur Förderung von Open Access an den 21 öffentlichen Universitäten in Österreich mit der Laufzeit 2017 bis 2020. AT2OA widmet sich in vier Teilprojekten den Themen (1) Analyse der Auswirkung einer Umstellung auf Open Access, (2) Finanzierung von Open Access-Übergangsmodellen , (3) Auf-, Ausbau und Finanzierung von OA-Publikationsfonds und (4) Förderung von OA-Publikationen und alternativen OA-Publikationsmodellen von Universitäten.The goal of the “Austrian Transition to Open Access (AT2OA)” project is to support the large-scale transformation of scientific publications from Closed to Open Access, and to implement measures supporting this initiative. The project aims to increase Austria’s Open Access publication output by restructuring licence agreements with publishers and by providing targeted support for researchers’ publication activities. It will also establish new venues for Open Access publishing. The subprojects will examine the following topics: (1) Impact analysis of the transition to Open Access. (2) Funding for transitional Open Access business models. (3) Publication funds. (4) Support for Open Access publications and alternative Open Access publication models. These subprojects will be supplemented by networking and knowledge transfer activities

On the Issues of a “Corresponding Author” Field-Based Monitoring Approach for Gold Open Access Publications and Derivative Cost Calculations

No abstract available© 2018 Gumpenberger, Hölbling and Gorrai