Transverse momentum and transverse momentum distributions in the MIT bag model

Top Quark Transverse Momentum and Rapidity Distributions

Relativistic diffusion model and analysis of large transverse momentum distributions

Abstract. In order to describe large transverse momentum (pT ) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussianlike in radial rapidity. We can also derive a pT or radial rapidity distribution function, where a distribution of ...

Transverse Momentum Distributions from Lattice QCD

Nucleons, i.e., protons and neutrons, are composed of quarks and gluons, whose interactions are described by the theory of quantum chromodynamics (QCD), part of the standard model of particle physics. This work applies lattice QCD to compute quark momentum distributions in the nucleon. The calculations make use of lattice data generated on supercomputers that has already been successfully emplo...

Transverse momentum distributions for heavy quark pairs.

We study the transverse momentum distribution for a pair of heavy quarks produced in hadron-hadron interactions. Predictions for the large transverse momentum region are based on exact order αs QCD perturbation theory. For the small transverse momentum region, we use techniques for all orders resummation of leading logarithmic contributions associated with initial state soft gluon radiation. Th...

Transverse momentum parton distributions inspired by a quark potential model

We derive a nonperturbative transverse momentum distribution for partons using a potential model to describe the quark-quark interaction inside the proton. We use this distribution to calculate the diferential cross-section of π 0-production for intermediate values of transverse momentum in p − p collisions at high energies. Assuming a variable string tension constant for the quark-quark potent...