ar X iv : 0 81 0 . 35 50 v 2 [ he p - ph ] 2 7 Fe b 20 09 A potential including Heaviside function in 1 + 1 dimensional hydrodynamics by Landau

ar X iv : 0 80 1 . 48 21 v 2 [ he p - ph ] 2 8 Fe b 20 08 X ( 1835 ) and η ( 1760 ) observed by BES Collaboration

ar X iv : 0 81 0 . 33 37 v 2 [ as tr o - ph ] 1 6 Fe b 20 09 Inflationary Potential from 21 cm Tomography and Planck

Three-dimensional neutral hydrogen mapping using the redshifted 21 cm line has recently emerged as a promising cosmological probe. Within the framework of slow-roll reconstruction, we analyze how well the inflationary potential can be reconstructed by combining data from 21 cm experiments and cosmic microwave background data from the Planck satellite. We consider inflationary models classified ...

ar X iv : 0 90 2 . 41 09 v 1 [ he p - ph ] 2 4 Fe b 20 09 pp̄ → Λ c Λ̄ c within a Handbag Picture – Cross

We study the process pp̄ → ΛcΛ̄c within the generalized parton picture. Our starting point is the double handbag diagram which factorizes into soft generalized parton distributions and a hard subprocess amplitude for uū → cc̄. Our cross-section predictions may become interesting in view of forthcoming experiments at FAIR in Darmstadt.

ar X iv : 0 90 2 . 17 91 v 1 [ he p - ph ] 1 1 Fe b 20 09 The Origin of Mass 1 Alfredo Raya

Dynamical chiral symmetry breaking and confinement are two crucial features of Quantum Chromodynamics responsible for the nature of the hadron spectrum. These phenomena, presumably coincidental, can account for 98% of the mass of our visible universe. In this set of lectures, I shall present an introductory review of them in the light of the Schwinger-Dyson equations.

ar X iv : 0 81 2 . 06 80 v 3 [ he p - ph ] 2 0 Fe b 20 09 Can one improve the Froissart bound ?

We explain why we hope that the Froissart bound can be improved, either qualitatively or, more likely, quantitatively, by making a better use of unitarity, in particular elastic unitarity. In other instances (Gribov’s theorem) elastic unitarity played a crucial role. A preliminary requirement for this is to work with an appropriate average of the cross-section, to make the problem well defined....