Speaker
Summary
The simple model, which enables to take into account the effect of the colour stings fusion in pp interactions, is suggested [1]. Using the Monte-Carlo algorithm based on the model we calculated the inelastic cross section, the multiplicity and the mean transverse momentum of charged particles produced in pp collisions for the wide range of initial energies.
It is demonstrated that using of the conventional value 0,2÷0,3 fm for the string radius results in the slower increase of the mean transverse momentum with energy than the experimentally observed one, what possibly has concern with the additional contribution of hard processes, which can't be taken into account in the framework of the present approach. It is also shown that it is better to use the value 0,4 fm for the string radius so that one can explain the increase of the mean transverse momentum with energy in pp interactions by the effect of the colour stings fusion.
It is shown also that the obtained value of the inelastic pp scattering cross section practically does not depend on the string radius option and is in a good agreement with the experimental data.
In the framework of suggested model there are made some predictions for values of the observables in pp collisions at LHC energies. Also the correlation function for the long range correlation between the average transverse momentum and the multiplicity is found.
[1] – See the materials of the current workshop (Mean transverse momentum, multiplicity and their correlation in pp collisions in string fusion model. Part I. Presenter: Dr. Vechernin, Vladimir)