We present a model for the structure of the pion. Based on ideas of a recently developed statistical model of the nucleon, we assume the pion to be a gas of partons. The finite-size corrections (FSC) are incorporated through two parameters. Using the same two FSC parameters for the proton and pion we reproduce quantitatively the data on πN → μ+μ−X Drell-Yan production and valence quark distribu...

γγ → Π0t is the major production mechanism of neutral top-pion at the linear colliders. In this paper, we calculate the cross section of the process γγ → Π0t and discuss the potential to observe the neutral top-pion via its various decay modes at the planned ILC. The study show that, among the various neutral top-pion production processes at the linear colliders, the cross section of γγ → Π0t i...

All available theoretical estimates of neutrino-induced coherent pion production rely on the ’local approximation’ for the Delta propagator. The validity of this approximation is scrutinized. It is found that the local approximation overestimates the neutrino-induced coherent pion production on nuclei significantly, by up to 100%.

Charged current (CC) and neutral current (NC) low energy neutrino cross section predictions from a variety of Monte Carlo generators in present use are compared against existing experimental data. Comparisons are made to experimental data on quasi-elastic, resonant and coherent single pion production, multiple pion production, single kaon production, and total inclusive cross sections, and are ...

Absorptive corrections to the one pion exchange and measurability of the small-x pion structure function at HERA Abstract We compare the absorptive corrections to the one pion exchange in pp → Xn and ep → e ′ Xn reactions. It is shown that the absorption is stronger in the case of pp collision. The difference in strength of the absorption for the pp → Xn and ep → e ′ Xn reactions breaks the fac...