Hadron Total Cross Sections in the Quark Parton Model

Multi-parton Cross Sections at Hadron Colliders

We present an alternative method to calculate cross sections for multi-parton scattering processes in the Standard Model at leading order. The helicity amplitudes are computed using recursion relations in the number of particles, based on Dyson-Schwinger equations whereas the summation over colour and helicity configurations is performed by Monte Carlo methods. The computational cost of our alg...

Hadron Distributions in a Quark - Parton Model

We present distributions in longitudinal and transverse momentum for hadrons produced in various deep inelastic processes for a particular picture of quark dressing. The sensitivity of various parameters in the model to presently available data is explored. Predictions are also made for the correlations expected in proton-proton scattering events which yield a high transverse momentum pion or k...

Hadron-nucleon total cross section fluctuations from hadron-nucleus total cross sections.

The extent to which information about fluctuations in hadron-nucleon total cross sections in the frozen approximation can be extracted from very high energy hadron-nucleus total cross section measurements for a range of heavy nuclei is discussed. The corrections to the predictions of Glauber theory due to these fluctuations are calculated for several models for the distribution functions, and d...

Can We Measure Parton - Parton Cross Sections ?

Top Quark Cross Sections

The top quark is the latest quark of the Standard Model (SM) that was discovered, discovery that was made in 1995 by the CDF and D0 collaborations [1]. It is the “youngest” quark of the SM and many of its properties remain to be studied in detail. Since it is also the heaviest elementary particle known so far, its status in the SM is special. Indeed, the top quark is 40 times heavier than its w...