0 v 1 1 1 Ju n 20 03 A Geometric Determination of the Distance to the Galactic Center

ar X iv : m at h / 03 06 23 5 v 1 [ m at h . D G ] 1 6 Ju n 20 03 GEOMETRIC CONSTRUCTION OF MODULAR FUNCTORS FROM CONFORMAL FIELD THEORY JØRGEN

We give a geometric construct of a modular functor for any simple Lie-algebra and any level by twisting the constructions in [48] and [51] by a certain fractional power of the abelian theory first considered in [32] and further studied in [2].

ar X iv : n uc l - th / 0 30 70 01 v 1 3 0 Ju n 20 03 - 1 - CORRELATION BETWEEN THE DEUTERON CHARACTERISTICS AND THE LOW - ENERGY TRIPLET np SCATTERING PARAMETERS

06 29 3 v 1 3 0 Ju n 20 03 CP violation in the decay mode B → πγγ

Within the framework of Standard Model, the exclusive decay mode B → πγγ is studied. Although the usual short distance contribution is small compared to the similar B → Kγγ mode, the process offers the possibility of studying the CP violation, a feature absent in the B → K counterpart.

ar X iv : a st ro - p h / 03 01 17 9 v 1 1 0 Ja n 20 03 Blue Supergiants as a Tool for Extragalactic Distances –

Blue supergiant stars can be exceptionally bright objects in the optical, making them prime targets for the determination of extragalactic distances. I describe how their photometric and spectroscopic properties can be calibrated to provide a measurement of their luminosity. I first review two well-known techniques, the luminosity of the brightest blue supergiants and, with the aid of recent sp...

ar X iv : a st ro - p h / 03 11 14 7 v 2 7 N ov 2 00 3 INTEGRAL detection of hard X - ray emission from the Galactic nuclear region 1

This letter presents the first results of an observational campaign to study the Galactic Centre with INTEGRAL. The mosaicked images obtained with the IBIS/ISGRI coded aperture instrument in the energy ranges 20–40 and 40–100 keV, give a yet unseen view of the high-energy sources of this region in hard X-and gamma-rays with an angular resolution of 12 ′ (FWHM). We report on the discovery of a s...