Photographer: Ruud Claessen

dr. W.J. (Wouter) Waalewijn


  • Faculty of Science
    ITF
  • Visiting address
    Science Park A
    Science Park 904  Room number: C4.109
  • Postal address:
    Postbus  94485
    1090 GL  Amsterdam
  • W.J.Waalewijn@uva.nl
    T: 0205255773

The Large Hadron Collider (LHC) is at the heart of the worldwide effort to uncover the fundamental laws of physics. After the highly successful Run 1, with as climax the Nobel prize winning discovery of the Higgs boson, the hunt for Beyond-the-Standard Model physics has resumed at even higher energies. My research focusses on QCD aspects of LHC collisions. An introduction to why and how QCD is important for the LHC, is presented in my national seminar.

My main research themes are:

  • Developing and studying observables to uncover new physics
  • Improving theoretical predictions for collisions

Much of my work focusses on jets, which are sprays of energetic collimated hadrons (see image). They are copiously produced at the LHC and play a crucial role in many analyses. To describe these intrinsically multi-scale processes, I use effective field theory.

Some of my contributions are:

  • The N-Jettiness observable, which provides a theoretically clean definition of an event with N jets. It is used to cancel infrared divergences in precision (NNLO) calculations. At the LHC it has been succesfully used as jet substructure, to identify hadronic decays of heavy particles (e.g. top quarks), which may prove crucial in uncovering a faint new physics signal. 
  • The first precision calculation of  Higgs+0 jets. Many LHC analyses bin events by the number of jets, to improve the signal sensitivity, which often dominates the theory uncertainty.
  • A study of LHC applications of the electric charge of a jet, its calculation and generalizations.

A full list of my publications can be viewed on Inspire.

A Two Jet Event - ATLAS Experiment © 2013 CERN

After studying physics and mathematics at Utrecht University, I went on to obtain a PhD at MIT and was a postdoc at UC San Diego. I started as a junior faculty member at the UvA in 2013 and am also affiliated with the Nikhef theory group. I have ongoing collaborations with colleagues at various institutions, including MIT, DESY, Berkeley, LANL, UCSD and CERN.

When I am not doing physics, I enjoy reading, hiking, traveling and of course spending time with my lovely wife and children.

Massachusetts Institute of Technology (from Prudential sky walk)

Sunset in California

Back in the Netherlands

Research group

  • Pedro Cal (PhD student)
  • Jort Damste (PhD student)
  • Gillian Lustermans (PhD student)
  • Darren Scott (postdoc)
  • Andreas Papaefstathiou (postdoc)
  • Michiel Veen (PhD student)
  • Leonardo Vernazza (postdoc)
  • Lorenzo Zoppi (PhD student)

Grants

  • ERC Starting Grant (2016-2021)
  • MISTI Global Seed Fund (2015-2016)
  • Veni (Lisa Zeune, 2015-2017)
  • Marie Curie Fellowship (2013-2015)

2016

2015

  • Adams, D., et al., . U., & Waalewijn, W. (2015). Towards an understanding of the correlations in jet substructure: Report of BOOST2013, hosted by the University of Arizona, 12th-16th of August 2013. European Physical Journal C, 75(9), [409]. DOI: 10.1140/epjc/s10052-015-3587-2  [details] 
  • Waalewijn, W. J. (2015). Dissecting Soft Radiation with Factorization. In K. Kutak, R. Maciula, M. Moraes, & A. Szczurek (Eds.), Proceedings of the 6th International Workshop on Multiple Partonic Interactions at the LHC: 3-7 November, 2014 Kraków, Poland (pp. 42). Krakow: Polish Academy of Arts and Science. [details] 
  • Moult, I., Stewart, I. W., Tackmann, F. J., & Waalewijn, W. J. (2015). Employing Helicity Amplitudes for Resummation. Physical Review D. Particles, Fields, Gravitation, and Cosmology, 93(9), [094003]. DOI: 10.1103/PhysRevD.93.094003  [details] 
  • Procura, M., Waalewijn, W. J., & Zeune, L. K. (2015). Resummation of double-differential cross sections and fully-unintegrated parton distribution functions. The Journal of High Energy Physics, 2015(2), [117]. DOI: 10.1007/JHEP02(2015)117  [details] 
  • Stewart, I. W., Tackmann, F. J., & Waalewijn, W. J. (2015). Dissecting Soft Radiation with Factorization. Physical Review Letters, 114(9), [092001]. DOI: 10.1103/PhysRevLett.114.092001  [details] 

2014

This list of publications is extracted from the UvA-Current Research Information System. Questions? Ask the library  or the Pure staff  of your faculty / institute. Log in to Pure  to edit your publications.
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