Proton/pion ratios and radial flow in pp and peripheral heavy ion collisions

The production of baryon and mesons in the RHIC heavy-ion experiments has received a lot of attention lately. Although not widely known, the pp data measured concurrently with heavy ion collisions do not find a convincing explanation in terms of simple models. We present the results of an afterburner to Pythia and Hijing event generators, simulating radial flow which seems to qualitatively explain the experimental results when applied to the pp collision data from RHIC at 200 GeV center-of-mass energy.Comment: 4 page, 5 figures. Prepared for X Mexican Workshop on Particles and Filed, Morelia Michoacan, November 7-17,2005. Referenced was corrected. Section 2, a sentence was modifie

Recent results on Charm Physics from Fermilab

New high statistics, high resolution fixed target experiments producing $10^5$ - $10^6$ fully reconstructed charm particles are allowing a detailed study of the charm sector. Recent results on charm quark production from Fermilab fixed target experiments E791, SELEX and FOCUS are presented.Comment: 27 pages, corrected some typographical errors. To appear Proc. VII Mexican Workshop of Particles and Field, Merida Yuc. M\'ex., Nov. 199

Azimuthal Correlations in p-p collisions

We report the analysis of experimental azimuthal correlations measured by STAR in p-p collisions at $\sqrt{s_{NN}}$ = 200 GeV. We conclude that for a fit of data using Pythia event generator we need to include two values of $k_{T}$.Comment: 4 page, 3 figures. Prepared for X Mexican Workshop on Particles and Fields. Morelia Mich. Nov 7-12, 200