June 30, 2014 to July 4, 2014
LPT Orsay
Europe/Paris timezone
Second International Summer School of the GDR PH-QCD



This school is organised in the framework of the GDR PH-QCD "Groupement de Recherche Chromodynamique Quantique et Physique des Hadrons".

Correlations between quarks and gluons in hadrons play a key role in current experiments at low and high energies. Indeed they offer a deep insight into the nucleon structure. They also allow high precision tests of Quantum Chromodynamics (QCD). Last but not least their knowledge is a prerequisite for the phenomenological interpretation of data taken at hadron colliders, for instance concerning the nature and strength of signals of physics beyond the Standard Model.

Tremendous progress has been made in recent years in all fields related to these topics. The aim of this international school is to review these developments, to promote QCD and parton distributions as a unifying concept between apparently distinct lines of research, and to foster contact between the theoretical and experimental communities of particle and nuclear physics.

The guideline of this school is the notion of partonic correlations in nucleons: correlations between quarks and gluons in multiple partons scattering ; correlations between densely packed gluons; correlations between nucleon spin, parton positions, momenta and spins. Analytical and numerical tools for the evaluation of multi parton scattering have been developped at an increasing level of sophistication and complexity. The school aims at describing these theoretical tools and offering a status and prospective view of the related experimental knowledge.

The first school of this series took place in 2012 and was entitled "QCD prospects for future ep and eA colliders".


Registration:  deadline 23rd of May

The inscription to the school is free of charge. Coffee breaks, lunches are included.

Financial support for PhD students:
  deadline 9th of May for applications

A few grants will be available to partially support PhD students for their accommodation and travelling expenses. Applications for these grants should be sent to:

Hervé Moutarde

Samuel Wallon

It should include a short cv, a publications list and a short letter of motivation.


Long lectures :

- Marco Stratmann, Tübingen Universität (Germany)

Introduction to Perturbative QCD: partons, factorization, resummation, and all that. (6h)

Introduction to QCD. Partons. Application to the LHC or to an EIC.

- Markus Diehl, DESY (Germany)

Multiparton Interactions. (6h)

Space-time, spin and color structure of multiple parton interactions. Elements required for establishing all-order factorization. Constraints on multiparton distributions from general principles and phenomenology, connections with generalized parton distributions, and behavior at small interparton distances.


- Cédric Lorcé, IFPA Liège (Belgium)

Multidimensional pictures of the nucleon. (4h)

Generalized Parton Distributions, Transverse Momentum Dependent parton
distributions, Wigner functions. Spin and energy momentum structure.


- Raju Venugopalan, Brookhaven National Laboratory and Stony Brook University (USA)

Color Glass Condensate (4h)

The nucleon as a Bose condensate of gluons. Saturation. Phenomenology of the CGC.

- Leif Lönnblad, Lund University (Sweden)

Introduction to event generators physics (3h)

Monte Carlo even generators, parton showers, multi parton interactions.

- Abhay Deshpande, Stony Brook University (USA)

The questions of Hadronic physics (3h)

Quantitative and intuitive understanding of hadron substructure and formation. Ability of existing theoretical tools to describe data. Role of nuclear environment on the partonic structure of the nucleon.


Short lectures :

- Paolo Bartalini, CERN and Central China Normal University (China)

Signals of MPI: current status and future experimental challenges? (1.5h)

Hints for MPI signals from ATLAS and CMS.

- Sarah Porteboeuf-Houssais, LPC Clermont Ferrand (France)

ALICE signals for MPI processes (1.5h)

Hints for MPI signals from ALICE.

- David Kosower, IPhT (France)

Introduction to On-Shell Methods in Quantum Field Theory (1.5h)

Recent theoretical developments in the computation of scattering amplitudes.


Seminar given by participants:

There will be eight 15 min. slots (two each day from Monday to Thursday) devoted to informal seminars from volunteer students attending the school.

How to reach the location of the school:

How to come to LPT

The school is financially supported by:

Labex P2IO, GDR PH-QCDUniversité Paris Sud, Université Blaise PascalCNRS, CEA, HP3.

Organisation committee:

Fonvieille Hélène (LPC)
Gelis Francois (IPhT)
Guidal Michel (IPNO)
Moutarde Hervé (Irfu/SPhN)
Voutier Eric (LPSC)
Wallon Samuel (LPT and UPMC)
LPT Orsay
Amphi 1
Bâtiment 210 Univ. Paris-Sud 11 91405 Orsay Cedex France