Two-Loop Sudakov Form Factor in a Theory with Mass Gap

The two-loop Sudakov form factor is computed in a U(1) model with a massive gauge boson and a $U(1)\times U(1)$ model with mass gap. We analyze the result in the context of hard and infrared evolution equations and establish a matching procedure which relates the theories with and without mass gap setting the stage for the complete calculation of the dominant two-loop corrections to electroweak processes at high energy.Comment: Latex, 5 pages, 2 figures. Bernd Feucht is Bernd Jantzen in later publications. (The contents of the paper is unchanged.

Birdmania: A Remarkable Passion for Birds by Bernd Brunner, Mozart\u27s Starling by Lyanda Lynn Haupt, and Birds Art Life by Kyo Maclear

Review of Bernd Brunner\u27s Birdmania: A Remarkable Passion for Birds, Lyanda Lynn Haupt\u27s Mozart\u27s Starling, and Ky Maclear\u27s Birds Art Life

More about Vacuum Spacetimes with Toroidal Null Infinities

Recently Bernd Schmidt has given three explicit examples of spacetimes with toroidal null infinities. In this paper all solutions with a toroidal null infinity within Schmidt's metric ansatz (polarized Gowdy models) are constructed. The members of the family are determined by two smooth functions of one variable. For the unpolarized Gowdy models the same kind of analysis carries through.Comment: 5 page

ALEA III, March 27, 1986

This is the concert program of the ALEA III performance on Thursday, March 27, 1986 at 8:00 p.m., at the Concert Hall, 855 Commonwealth Avenue. Works performed were Match by Mauricio Kagel, Octet by Yinam Leef, Perspectives by Bernd Alois Zimmermann, and Septet by Igor Stravinsky. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

The Strominger-Yau-Zaslow conjecture: From torus fibrations to degenerations

This survey article begins with a discussion of the original form of the Strominger-Yau-Zaslow conjecture, surveys the state of knowledge concering this conjecture, and explains how thinking about this conjecture naturally leads to the program initiated by the author and Bernd Siebert to study mirror symmetry via degenerations of Calabi-Yau manifolds and log structures.Comment: 44 pages, to appear in the Proceedings of the 2005 AMS Symposium on Algebraic Geometry, Seattl