Light Cone 2015

Session

2.

21 Sept 2015, 11:45

Aula Bruno Touschek (Laboratori Nazionali di Frascati)

Conveners

2.

• Sergio Scopetta (PG)

77. Integrated and unintegrated PDFs and GPDs from effective two-body light-cone wave functions

Dr Dieter Mueller (Ruhr-University Bochum)

21/09/2015, 11:45

We introduce a classification scheme for parton distribution models and we model generalized parton distributions (GPDs), their form factors, and parton distribution functions (PDFs), integrated and unintegrated ones, in terms of unintegrated double distributions that are obtained from the parton number conserved overlap of effective light-cone wave functions. For a so-called "spherical"...

13. Theory of Double Parton Scattering

Dr Jonathan Gaunt (DESY)

21/09/2015, 12:15

Invited talk

Double parton scattering (DPS) is the process in which two distinct pairs of partons hard scatter in an individual proton-proton collision. It can be an important background to single scattering processes suppressed by small or multiple coupling constants (e.g. new physics signals), and can reveal novel information about the proton structure. I review recent developments in the endeavour to...

32. Valon model for double parton distributions

Wojciech Broniowski (Jan Kochanowski U. and Institute on Nuclear Physics PAN, Poland)

21/09/2015, 12:45

Oral contribution

We explore ansatze for parton distributions of the proton following the idea of the valon model, where the Fock components have the form f1(x_1)f1(x_2)...fn(x_n)delta(1-x_1-x_2-...-x_n). Upon integration, double and single parton distributions are generated from the n-particle distributions. We show that the construction leads to preservation of the Gaunt-Stirling sum rules, thus providing...