Unintegrated parton distributions

By M. A. Kimber, Alan D. Martin, M. Ryskin. 2001

301 citations recorded by the source corpus.

We describe how to calculate the parton distributions ${f}_{a}{(x,k}_{t}^{2},{\ensuremath{\mu}}^{2}),$ unintegrated over the parton transverse momentum ${k}_{t},$ from auxiliary functions ${h}_{a}{(x,k}_{t}^{2}),$ which satisfy single-scale evolution equations. The formalism embodies both DGLAP and BFKL contributions, and accounts for the angular ordering which comes from coherence effects in gluon emission. We check that the unintegrated distributions give the measured values of the deep inelastic structure function ${F}_{2}{(x,Q}^{2}).$

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c098c81e3b8d3714416613322d76b9019942f581