4 papers
A perturbative treatment of double gluon exchange in gamma*-proton DIS
Hamid Kharraziha
A new model for the exchange of two gluons between the virtual photon and the proton, in non-diffractive deeply inelastic electron-proton scattering, is developed and studied. This…
The Metropolis algorithm for on-shell four-momentum phase space
Hamid Kharraziha, Stefano Moretti
We present several implementations of the Metropolis method, an adaptive Monte Carlo algorithm, which allow for the calculation of multi-dimensional integrals over arbitrary on-she…
The Linked Dipole Chain Monte Carlo
H. Kharraziha, L. Lonnblad
We present an implementation of the Linked Dipole Chain model for deeply inelastic ep scattering into the framework of the Ariadne event generator. Using this implementation we obt…
Colour: A Computer Program for QCD Colour Factor Calculations
Jari Hakkinen, Hamid Kharraziha
A computer program for evaluating colour factors of QCD Feynman diagrams is presented, and illustrative examples on how to use the program to calculate non trivial colour factors a…