TMD/uPDF Workshop

Aula Rector Dhanis (University of Antwerp)

Aula Rector Dhanis

University of Antwerp

Room K.101 Kleine Kauwenberg 14 2000 Antwerp Belgium
Andrea Signori (VU University Amsterdam - Nikhef), Igor Cherednikov (University of Antwerp)

The goal of the workshop is to bring together experts from the communities of TMDs and small-x/uPDFs. Since the two seem to use different languages to address quite overlapping physical phenomena, there is demand for mutual understanding, promoting the (possible) development of joint research programs and unified treatments. The key topics will cover both theoretical and phenomenological issues.

Theory: factorization theorems, operatorial definitions and gauge invariance, renormalization and evolution in different x-regimes.

Phenomenology: address high-energy processes available at the LHC (Drell-Yan and Higgs) by means of the TMDs and uPDFs, mostly analyzing the differences and similarities for these predictions.

We will also test and discuss the first public release of the TMDlib library.


  • Andrea Signori
  • Daniel Boer
  • Emanuele Roberto Nocera
  • Francesco Hautmann
  • Frederik Van der Veken
  • Gennady Lykasov
  • Hannes Jung
  • Igor Cherednikov
  • Miguel Echevarria
  • Pierre Van Mechelen
  • Piet Mulders
  • Pieter Taels
  • Tom Mertens
  • Tomas Kasemets
    • Presentation and discussion of the TMDlib tool
      Convener: Hannes Jung (Deutsches Elektronen-Synchrotron (DE))
    • Gluon-gluon to Higgs from the TMD perspective: key speakers P. Mulders, D. Boer
    • Discussion
    • Gluon-gluon to Higgs from the small-x perspective: key speaker F. Hautmann
    • Discussion
    • Gluon-gluon to Higgs from the SCET perspective: key speaker M. Echevarria
    • Discussion
    • Summary discussion: Where we are and where we want to go; the outcome of this first meeting and the next steps; planning a bigger workshop.