9,656 research outputs found
Physics at the LHC -- From Standard Model measurements to Searches for New Physics
The successful operation of the {\em Large Hadron Collider} (LHC) during the
past two years allowed to explore particle interaction in a new energy regime.
Measurements of important Standard Model processes like the production of
high-\pt\ jets, and bosons and top and -quarks were performed by the
LHC experiments. In addition, the high collision energy allowed to search for
new particles in so far unexplored mass regions. Important constraints on the
existence of new particles predicted in many models of physics beyond the
Standard Model could be established. With integrated luminosities reaching
values around 5 \ifb\ in 2011, the experiments reached as well sensitivity to
probe the existence of the Standard Model Higgs boson over a large mass range.
In the present report the major physics results obtained by the two
general-purpose experiments ATLAS and CMS are summarized.Comment: 53 pages, 42 figures, to be published in the proceedings of ESHEP
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Standardisation and innovation
The paper discusses the relations that exist between standards on the one hand, and innovation and
implementation on the other. We will argue that these activities must not be considered separately,
especially since standards-based components are going to play an increasingly important role in
implementation processes
A Good Idea is Not Enough: Understanding the Challenges of Entrepreneurship Communication
This paper addresses a less-investigated issue of innovations: entrepreneurship communication. Business and marketing studies demonstrate that new product development processes do not succeed on good technical invention alone. To succeed, the invention must be appropriately communicated to a market and iterated through dialogue with potential stakeholders.
We explore this issue by examining communication-related challenges, abilities and barriers from the perspectives of innovators trying to enter an unfamiliar, foreign market. Specifically, we summarize results of a set of studies conducted in the Gyeonggi Innovation Program (GIP), an entrepreneurship program formed by a partnership between the University of Texas at Austin and Gyeonggi-Do Province in South Korea. Through the GIP, Korean entrepreneurs attempt to expand domestically successful product ideas to the American market. The study results demonstrate that these innovators must deal with a broad range of challenges, particularly (1) developing deeper understanding of market needs, values, and cultural expectations, and (2) producing pitches with the structure, claims and evidence, and engagement strategies expected by American stakeholders. These studies confirm that a deeper understanding of successful new product development (NPD) projects requires not only a culturally authentic NPD process model, but also communication-oriented research.
The GIP approach offers insights into good programmatic concept and effective methods for training engineers to become entrepreneurs. Yet we also identify potential improvements for such programs. Finally, we draw implications for studying entrepreneurship communication.IC2 Institut
Two-particle irreducible functional renormalization group schemes---a comparative study
We derive functional renormalization group schemes for Fermi systems which
are based on the two-particle irreducible approach to the quantum many-body
problem. In a first step, the cutoff is introduced in the non-interacting
propagator as it is commonly done in functional renormalization group based on
one-particle irreducible vertex functions. The most natural truncation of the
resulting infinite hierarchy of flow equations is shown to be fully equivalent
to self-consistent perturbation theory. An earlier suggested alternative
truncation strategy is considered as well. In a second step, the cutoff is
introduced in the two-particle interaction. Again two truncation procedures are
investigated, one of which was derived before. In the latter, the mean-field
solution of the many-body problem is considered as the starting point of the
renormalization group flow. We compare the performance and the required
numerical resources for solving the coupled flow equations for all the
approximate schemes by applying them to the problem of the quantum anharmonic
oscillator. In a functional integral representation, this model has a formal
similarity to the quantum many-body problem. The perspectives for applying the
derived two-particle irreducible functional renormalization group approaches to
zero- and one-dimensional systems of correlated fermions are discussed.Comment: 32 pages, 6 figures (9 plots
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