Mattias Sjö
Affiliated
Research
I work in the group of Hans Bijnens, primarily studying meson dynamics. I do this at the crossroads between the theory of scattering amplitudes and the phenomenology of light mesons, particularly with an eye toward the lattice. My theoretical framework is chiral perturbation theory, and my computational weapon of choice is FORM.
I have a background in biophysics and have been involved in the development of CELLoGeNe.
Teaching and Outreach
I have been the TA in Introduction to Theoretical Particle Physics for many years, and have also taught general relativity, quantum field theory, group theory and many other courses. I regularly speak at NMT-dagarna.
Representation
I have served as co-chair of Lund's Doctoral Student Union and maintain some minor positions there. I have been deeply involved with Science Village and some other projects.
Publications
Displaying of publications. Sorted by year, then title.
The three-pion K-matrix at NLO in ChPT
Jorge Baeza-Ballesteros, Johan Bijnens, Tomáš Husek, Fernando Romero-López, Stephen R. Sharpe, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleNNLO Positivity Bounds on χPT for a General Number of Flavours
Benjamin Alvarez, Johan Bijnens, Mattias Sjö
(2024) Proceedings of Science, 413
Conference paperThe isospin-3 three-particle K-matrix at NLO in ChPT
Jorge Baeza-Ballesteros, Johan Bijnens, Tomáš Husek, Fernando Romero-López, Stephen R. Sharpe, et al.
(2023) Journal of High Energy Physics, 2023
Journal articleThree-pion scattering : From the chiral Lagrangian to the lattice
Jorge Baeza-Ballesteros, Johan Bijnens, Tomáš Husek, Fernando Romero-López, Stephen R. Sharpe, et al.
(2023) Nuclear and Particle Physics Proceedings
Journal articleSix-meson amplitude in QCD-like theories
Johan Bijnens, Tomáš Husek, Mattias Sjö
(2022) Physical Review D, 106
Journal articleNNLO positivity bounds on chiral perturbation theory for a general number of flavours
Benjamin Alvarez, Johan Bijnens, Mattias Sjö
(2022) Journal of High Energy Physics, 2022
Journal articleCELLoGeNe - An energy landscape framework for logical networks controlling cell decisions
Emil Andersson, Mattias Sjö, Keisuke Kaji, Victor Olariu
(2022) iScience, 25
Journal articleHigher-order tree-level amplitudes in the nonlinear sigma model
Johan Bijnens, Karol Kampf, Mattias Sjö
(2019) Journal of High Energy Physics, 2019
Journal article