Initial conditions for the double parton distribution functions

29 Apr 2015, 16:40
25m
FORUM ()

FORUM

WG1 Structure Functions and Parton Densities WG1 Structure Functions and Parton Densities

Speaker

Zachary Snyder (Penn State)

Description

We demonstrate the mathematical formalism for the construction of the consistent initial conditions for the double parton distribution functions in the collinear approximation. The initial conditions within this framework have an important property that they satisfy exactly simultaneously both the momentum sum rules and the quark sum rules and are at the same time related to the single parton distribution functions. We find that this condition imposes certain relations on the large and small x behavior of both single and double parton distribution functions. We illustrate the double parton correlations for the gluon channel and show how they change with the evolution scale. Possible phenomenological implications are discussed.

Primary authors

Anna Stasto (Penn State) Emilia Lewandowska (Institute of Nuclear Physics PAN) Krzysztof Golec-Biernat (Institute of Nuclear Physics, Cracow) Zachary Snyder (Penn State)

Presentation Materials