ar X iv : h ep - l at / 9 50 50 04 v 2 2 5 Ju l 1 99 5

ar X iv : d g - ga / 9 50 70 04 v 1 2 4 Ju l 1 99 5 LOCALISATION OF THE DONALDSON ’ S INVARIANTS ALONG SEIBERG - WITTEN CLASSES

This article is a first step in establishing a link between the Donaldson polynomials and Seiberg-Witten invariants of a smooth 4-manifold.

ar X iv : h ep - p h / 94 07 37 5 v 1 2 6 Ju l 1 99 4 Scaling Relation for Leptonic Constants of Higher Excitations in Heavy Quarkonium

Introduction

ar X iv : h ep - l at / 9 50 90 04 v 1 4 S ep 1 99 5 SU - 4240 - 616 Baby Universes

We measure numerically the distribution of baby universes in the crumpled phase of the dynamical triangulation model of 4d quantum gravity. The relevance of the results to the issue of an exponential bound is discussed. The data are consistent with the existence of such a bound.

ar X iv : h ep - p h / 97 07 50 1 v 1 2 9 Ju l 1 99 7 SUPERNOVA 1987 A - TEN YEARS AFTER Arnon Dar

Supernova 1987A became a milestone in physics and astronomy. The most important things that have been learned from it, the most important problems yet to be solved and the prospects for learning important new physics from future observations of nearby supernova explosions are shortly summarized.

ar X iv : h ep - p h / 94 07 39 7 v 1 2 9 Ju l 1 99 4 Analysis of the anomalous events e + e − → l + l −

ar X iv : h ep - p h / 99 07 30 0 v 1 1 2 Ju l 1 99 9 The hypothesis of a real Cabibbo