LABORATORI NAZIONALI DEL GRAN SASSO

 

SEMINAR  ANNOUNCEMENT

 

 

On December 19, 2006 at 14:30, S. Ostapchenko from Forschungszentrum Karlsruhe, Germany will give a seminar entitled:

 

 

Chemical compostion of UHE cosmic rays and models of hadronic interactions”

 

 

 

Abstract:

 

Recent progress in the description of high energy hadronic

interactions is discussed in connection to experimental studies

of primary cosmic ray composition in the very high energy range.

The predictions of model approaches based on the Reggeon Field

Theory are compared to the ones of the minijet scheme and the

key role of cosmic ray measurements at the 'knee' energies is

underlined. The present situation with the UHECR composition

studies is discussed, regarding the remaining experimental

puzzles, the differences between hadronic model predictions,

and the future progress in model development.

 

 

 

 

 

 

(“B. Pontecorvo” room)