REI’m a particle physicist at Uppsala University.

I work as associate professor/senior lecturer (universitetslektor) in the Theoretical High Energy Physics group of the Department of Physics and Astronomy. I have previously worked at École Polytechnique in Paris, Berkeley Lab & UC Berkeley in Berkeley, and The University of Arizona in Tucson.

For contact info, see my Uppsala University page.


My research is on theoretical particle physics. I’m mostly interested in physics beyond the Standard Model, with a focus on Higgs and other scalar fields, and astroparticle physics, such as high-energy neutrinos produced in astrophysical sources and in Earth’s atmosphere.

See also software I’ve written and a page with calculated neutrino fluxes.

I recently co-chaired the Charged Higgs 2016 workshop in Uppsala.





  • I was interviewed for an article in the Swedish popsci magazine Forskning och Framsteg about symmetries in physics
  • I was interviewed for the podcast Professor Magenta (in Swedish). There are two episodes (one, two) and a blog post about this.
  • Answer to a reader question about the laws of nature in the magazine Forskning och Framsteg
  • I have given talks to high school science teachers (gymnasielärare) about physics at the LHC and the Higgs boson as part of the “Inspiration days for teachers” organized by Skolverket (the National Agency for Education) and KVA (the Royal Academy of Sciences). My talk and the others on the same day can be found here. (Animations and movies are missing.)
  • Popular talk, Fysik vid LHC, Uppsala, April 7, 2011.
  • Popular lecture on the theory of relativity, given for the Association of Young Scientists, February 7, 2009, for the Hands on CERN Masterclass in particle physics on March 26, 2009, for the Physics and Astronomy Open House on April 4, 2009, and again for a Masterclass on March 21, 2011.
  • Pedagogical lecture(docent lecture; in Swedish) on extra dimensions at Uppsala University, October 16, 2006. Undergraduate level.

Supervision (PhD and undergraduate theses)

  • Currently main PhD advisor of Johan Löfgren and associate advisor of Andreas Ekstedt.
  • Previous PhD theses:
    • main advisor of Glenn Wouda – graduated Feb 27, 2015 [thesis]
    • assistant supervisor of Dominik Werder – graduated Jan 20, 2016 [thesis]
  • Bachelor and master theses supervised:
    • Glenn Wouda, Charged Higgs Bosons in non-minimal Supersymmetry
    • Lena Wallenhorst, Dark Matter in the NMSSM [pdf]
    • Viveca Lindahl, Detection Prospects of Doubly Charged Higgs Bosons from the Higgs Triplet Model at the LHC [pdf]
    • Henrike Fleischhack, Studies of the Phenomenology of H+ to W+Z events with ATLAS at LHC [pdf]
    • Calle Niblaeus, Simulations of Quantum Black Hole collisions at the LHC with PYTHIA [pdf]
    • Andreas Ekstedt, The soft color interactions of diffractive scattering. A study of Rapidity gap formation by BFKL exchange [thesis]
    • Johan Löfgren, Electroweak phase transitions in the two-Higgs-doublet
      model after the first LHC run [thesis]
    • Henrik Jansson, Unification in Particle Physics [thesis]

Other work