ar X iv : n uc l - th / 0 30 50 39 v 1 1 4 M ay 2 00 3 Models for photo - and electro - production of K + in view of new data

ar X iv : n uc l - th / 0 30 50 64 v 1 2 1 M ay 2 00 3 CHAPTER 1 Hydrodynamical description of collective flow

I review how hydrodynamical flow is related to the observed flow in ul-trarelativistic heavy ion collisions and how initial conditions, equation of state and freeze-out temperature affect flow in hydrodynamical models.

ar X iv : n uc l - th / 0 50 50 24 v 1 9 M ay 2 00 5 Structure of isomeric states in 66 As and 67 As

ar X iv : n uc l - th / 0 30 50 27 v 1 1 0 M ay 2 00 3 Correlation femtoscopy of multiparticle processes

Recent results on particle momentum and spin correlations are discussed in view of the role played by the effects of quantum statistics, including multiboson and coherence phenomena, and final state interaction. Particularly, it is demonstrated that the latter allows for (i) correlation femtoscopy with unlike particles; (ii) study of the relative space–time asymmetries in the production of diff...

ar X iv : n uc l - th / 0 30 50 22 v 1 8 M ay 2 00 3 The Contribution of the Light Quark Condensate to the π N Sigma Term

There has been a discrepancy between values of the pion-nucleon sigma term extracted by two different methods for many years. Analysis of recent high precision pion-nucleon data has widened the gap between the two determinations. It is argued that the two extractions correspond to different quantities and that the difference between them can be understood and calculated.

ar X iv : n uc l - th / 0 20 50 08 v 1 2 M ay 2 00 2 1 Nuclear modifications of fragmentation functions and rescaling models ∗ †

In deep inelastic scattering a projectile lepton l emits a virtual photon γ, which scatters on a quark q from the target T , in our case a deuteron D or a heavier nucleus with atomic number A. The struck quark fragments into the observed hadron h, see Fig. 1. We use kinematic variables as summarized in the same figure: x is the Bjorken’s scaling variable, ν is the energy of the virtual photon i...