Present and Future sensitivity to a Z-prime

Various extensions of the Standard Model, i.e. string inspired groups like E_6, extra dimensions, 'deconstruction', predict additional vector bosons. In most cases these bosons can mix with the SM Z and this translates into a very high sensitivity of precision measurements which can be performed at the Z resonance. This aspect will be illustrated using SLD/LEP data and the possible impact on the Higgs boson mass indirect determination. An extrapolation to the accuracies which could be reached at FLC will be discussed. With accuracies available at GigaZ it will become possible to elucidate the origin the Z' and the symmetry breaking mechanism responsible for the mixing. Two examples show the possible impact of FLC on the LHC program.Comment: 23 pages, 8 figure

Search for Higgs Bosons in e^+e^- Colliders

Table of contents 1. Introduction 2. Theory 3. Searches at LEP2 4. Results 5. Futur colliders 6. Final remarksComment: 12 page

The measurability of hitting times

Under very general conditions the hitting time of a set by a stochastic process is a stopping time. We give a new simple proof of this fact. The section theorems foroptional and predictable sets are easy corollaries of the proof.Comment: This is a post-publication version that has a correction incorporate

[Review of] Peter Iverson, ed. The Plains Indians of the Twentieth Century

Iverson\u27 s new volume of collected essays by authorities on reservation life serves as an invaluable aid to a further understanding of the sometimes agonizing social problems vis-a-vis the federal government. The book contains, in addition to Iverson\u27s short introduction, eleven essays (three by Native Americans) dealing with the complex cultural problems of twentieth-century Plains Indian reservations. Iverson\u27s essay stresses cultural independence despite overwhelming odds which face the modern Indian