18-22 juin 2018
Laboratoire de Physique Théorique d'Orsay
Fuseau horaire Europe/Paris

Fourth International Summer School of QCD



This iteration of the schools series will focus on QCD at the precision frontier. The description of any short-distance dominated observable relies on factorization theorems, allowing for an expansion of these observables in powers of both the strong coupling (perturbative expansion) and the hard scale (twist expansion). A precise understanding of these expansions is a prerequisite in order to make relevant theoretical studies of the most advanced experiments both in hadronic physics and in particle physics.

These expansions are extremely difficult to achieve in practice. Indeed, very diverse questions immediately arise in such expansions: how to classify the involved long distance correlators and implement their evolution with the hard scale, how to control that factorization theorems are valid at arbitrary perturbative order, for observable as different as production of light or heavy bound states or jets to be defined/reconstructed from bunches of traces in LHC detectors, how to use these expansions in practical applications at colliders with a controllable balance between precision and CPU constraints, etc.

The school will address several of these aspects through four main lectures, covering both the theoretical developments and the phenomenological applications. Following a now well established tradition of these schools series, all lectures will be delivered on the blackboard, for pedagogical reasons. Some dedicated sessions for seminars will be organized, in order that participants could have the opportunity to present their work.


The three first schools of this series took place in 2012, entitled "QCD prospects for future ep and eA colliders", 2014, entitled "Correlations between partons in nucleons" and 2016, entitled "Dense systems in QCD at asymptotical energies".

Registration:  deadline 30th of May

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

(note: except participants from RBI-T-Winning nodes, in order to avoid double financing).

Financial support for PhD students:  deadline 15th 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 Samuel Wallon.

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

Scientific program:

Main lectures (6 hours each):

Vladimir M. Braun QCD beyond the leading twist
Adam K. Leibovich Quarkonia and nonrelativistic QCD
Emanuele Re Introduction to Monte Carlo event generators
Gregory Soyez Jet physics


Seminars given by the participants:

Dedicated slots for seminars given by volunteer participants will be available.

How to reach the location of the school:

How to come to LPT.

The school is financially supported by:

RBI-T-WINNING, Labex P2IO, GDR QCD, CNRS, Université Paris Sud.

Organization committee:

Goran Duplančić (Ruđer Bošković Institute, Zagreb)

Cyrille Marquet (CPHT, Palaiseau)

Hervé Moutarde (Irfu/DPhN, Gif-sur-Yvette)   

Kornelija Passek-Kumerički (Ruđer Bošković Institute, Zagreb)

Lech Szymanowski (NCBJ, Warsaw)

Samuel Wallon (LPT, Orsay and UPMC, Paris)     (chair)

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