ar X iv : m at h / 04 01 23 7 v 1 [ m at h . C O ] 1 9 Ja n 20 04 1 Enumerative properties of generalized associahedra

ar X iv : m at h / 04 01 12 6 v 1 [ m at h . N T ] 1 3 Ja n 20 04 THREE LECTURES ON THE RIEMANN ZETA - FUNCTION

ar X iv : h ep - p h / 04 01 13 1 v 1 1 8 Ja n 20 04 Exclusive photoproduction of a heavy vector meson in QCD

The process of exclusive heavy vector meson photoproduction, γp → V p, is studied in the framework of QCD factorization. The mass of the produced meson, V = Υ or J/Ψ, provides a hard scale for the process. We demonstrate, that in the heavy quark limit and at the one-loop order in perturbation theory, the amplitude factorizes in a convolution of a perturbatively calculable hard-scattering amplit...

ar X iv : a st ro - p h / 04 01 12 2 v 2 1 9 Ja n 20 04 High Energy Gamma - Ray Astronomy

The physics results of high energy γ-ray astronomy are reported, emphasizing recent achievements with ground-based detectors. This includes some of the instrumental developments and latest projects. The fundamental contribution of the field to the question of Cosmic Ray origin is highlighted.

ar X iv : 0 81 2 . 04 22 v 2 [ m at h . D G ] 1 6 Ja n 20 09 On the ∂ - and ∂̄ - Operators of a Generalized Complex Structure ∗

In this note, we prove that the ∂and ∂̄-operators introduced by Gualtieri for a generalized complex structure coincide with the d̆∗and ∂̆-operators introduced by Alekseev-Xu for Evens-Lu-Weinstein modules of a Lie bialgebroid.

ar X iv : h ep - e x / 05 01 05 7 v 1 2 1 Ja n 20 05 UCHEP - 04 - 03 φ 2 Measurement Using B → ρπ decays at Belle

We present measurements of time-dependent asymmetries in decays of neutral B mesons to the final states B 0 → ρ ± π ∓. Measurements are based on a 140 f b −1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e + e − collider.