Search for symmetry restoration in the fundamental su(2) higgs model Damgaard P H Heller U M 1987 PREPRINT

Nucl. Phys. B Nucl. Phys. B Supergravity and Supersymmetry Breaking in Four and Five Dimensions Ellis John R. CERN Lalak Zygmunt Bonn U. Warsaw U. Pokorski Stefan Warsaw U. Thomas Steven Queen Mary, U. of London 1999 563 107 124 We discuss supersymmetry breaking in the field-theoretical limit of the strongly-coupled heterotic string compactified on a Calabi-Yau manifold, from the different perspectives of four and five dimensions. The former applies to light degrees of freedom below the threshold for five-dimensional Kaluza-Klein excitations, whereas the five-dimensional perspective is also valid up to the Calabi-Yau scale. We show how, in the latter case, two gauge sectors separated in the fifth dimension are combined to form a consistent four-dimensional supergravity. In the lowest order of the $\kappa^{2/3}$ expansion, we show how a four-dimensional supergravity with gauge kinetic function $f_{1,2}=S$ is reproduced, and we show how higher-order terms give rise to four-dimensional operators that differ in the two gauge sectors. In the four-dimensional approach, supersymmetry is seen to be broken when condensates form on one or both walls, and the goldstino may have a non-zero dilatino component. As in the five-dimensional approach, the Lagrangian is not a perfect square, and we have not identified a vacuum with broken supersymmetry and zero vacuum energy. We derive soft supersymmetry-breaking terms for non-standard perturbative embeddings, that are relevant in more general situations such as type I/type IIB orientifold models. research-article

Bounds on a top quark with charged Higgs decay Barger V Phillips R J N 1987 PREPRINT

Effects of Dynamic Misalignements and Feedback Performance on Luminosity Stability in Linear Colliders Seryi Andrei SLAC Hendrickson L Raubenheimer T O Tenenbaum P G Woodley M Schulte Daniel CERN 2003 The performance of high energy linear colliders depends critically on the stability with which they can maintain the collisions of nanometer-size beams. Ground motion and vibration, among other effects, will produce dynamic misalignments which can offset the beams at the collision point. A system of train-to-train and intra-train beam-beam feedbacks, possibly combined with additional beam-independent active systems, is planned to compensate for these effects. Extensive simulation studies of ground motion and luminosity stabilization have been performed as part of the work of the International Linear Collider Technical Review Committee [1]. This paper presents a comparison of the expected performance for TESLA, JLC/NLC and CLIC under various assumptions about feedbacks and the level of ground motion. CLINOT

Large enhancement of the production of the bound state of the ultra heavy quark via Higgs boson exchange Inazawa H Mori T 1987 PREPRINT

Mathematica notebook of special relativity 1990 BOOK

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