ar X iv : h ep - t h / 04 09 30 6 v 1 2 9 Se p 20 04 Minimal String Theory ⋆

ar X iv : h ep - t h / 04 06 26 2 v 1 2 9 Ju n 20 04 RIKEN

We study the simplest examples of minimal string theory, which are the unitary (p, q) minimal models coupled to two-dimensional gravity (Liouville field theory). In the Liouville sector, we show that four-point correlation functions of ‘tachyons’ exhibit logarithmic singularities, and that the theory turns out to be logarithmic. The relation with Zamolodchikov’s logarithmic degenerate fields is...

ar X iv : h ep - t h / 04 09 16 5 v 1 1 6 Se p 20 04 Topological Strings and D - Branes ∗

In this talk we give a brief review of the algebraic structure behind the open and closed topological strings and D-branes and emphasize the role of tensor category and the Frobenius algebra. Also, we speculate on the possibility of generalizing the topological strings and the D-branes through the subfactor theory.

ar X iv : h ep - e x / 02 09 04 3 v 1 1 8 Se p 20 02 1 Elementary Hadronic Interactions at the CERN SPS

ar X iv : h ep - t h / 04 09 16 7 v 1 1 6 Se p 20 04 Quantum Gravity Scenario of Inflation based on the CMB Anisotropies 1

Inflationary scenario based on a renormalizable model of conformal gravity is proposed and primordial spectrum is derived. The sharp fall off of the angular power spectra at low multipoles in the COBE and WMAP observations are explained by a dynamical scale of quantum gravity. At this scale, the universe would make a sharp transition from the quantum spacetime with conformal invariance to the c...

ar X iv : h ep - p h / 04 09 12 2 v 1 1 0 Se p 20 04 Predictions for multi - particle final states with SHERPA

In this contribution the new event generation framework SHERPA will be presented, which aims at a full simulation of events at current and future high-energy experiments. Some first results related to the production of weak vector bosons in association with jets at the Tevatron and the LHC will be discussed.