Light Cone 2015

Session

PARALLL SESSION III

24 Sept 2015, 16:30

Aula Bruno Touschek (Laboratori Nazionali di Frascati)

Conveners

PARALLL SESSION III

• Harut Avagyan (Jefferson Lab)

78. OAM measurements from DVCS at JLab

Dr Silvia Pisano (LNF)

24/09/2015, 16:30

Oral contribution

Deeply-Virtual Compton scattering provides the cleanest access to the 3D imaging of the nucleon structure encoded in the Generalized Parton Distributions, that correlate the fraction of the total nucleon momentum carried by a constituent to its position in the transverse plane. Besides the information on the spatial imaging of the nucleon, GPDs provide an access, through the Ji relation, to...

24. Parton Distributions and One-Loop Matching

Dr Xiaonu Xiong (INFN, Sezione di Pavia, Pavia, 27100)

24/09/2015, 16:50

Oral contribution

Recent researches showed that the light-cone parton distributions can be accessed by investigating the quasi distributions which are space-like correlation functions, hence can be directly simulated on the lattice. In this talk, I will show the one-loop matching between the light-cone and quasi PDFs, GPDs. The matching condition is essential to extract the light-cone distribution from the...

29. T-odd gluon TMDs inside a transversely polarized hadron

Dr Miguel Echevarria (Nikhef / VU University Amsterdam)

24/09/2015, 17:10

Oral contribution

The limit of high gluon density is currently under active investigation, both from the theoretical and the experimental side, since gluons play an increasingly important role as the energy of the relevant scattering process increases. Thus it is our aim to better understand this limit in order to get valuable information on the 3-dimensional structure of hadrons. In this talk I will analyze...

27. Gluon TMDs in quarkonia production

Mr Andrea Signori (VU University Amsterdam / Nikhef)

24/09/2015, 17:30

Oral contribution

Production of quarkonia bound states from hadronic collisions can be a useful handle to map the probability density distributions for gluons inside protons. We derive the factorization theorem for the pT-spectrum of color-singlet quarkonia production in terms of gluon transverse-momentum-dependent parton distribution functions (TMD PDFs). With this tool we predict cross sections up to NNLL...

1. Universality of a New Soft Phase Factor

Dr Frederik Van der Veken (University of Antwerp)

24/09/2015, 17:50

Oral contribution

The Wilson line in a TMD is needed for gauge invariance, but quantum field theory lays no restriction on the specific path layout except for its endpoints. However, there is no reason to assume that different path structures would lead to equivalent results. Care has to be taken when splitting complicated structures into separate path segments, especially when the path contains obstructions...