
Malin Sjödahl
Docent, researcher

Research
My research has largely focused on the strong force, Quantum ChromoDynamics, QCD. Especially, I have been concerned with treating the full SU(3) color structure associated with QCD, both in a resummation and in a parton shower context. In particular I have developed orthogonal, group theory based, bases for the color space. This research has also resulted in one Mathematica package, ColorMath, and one C++ package, ColorFull, for algebraic color summed calculations in QCD.
More recently I have explored the spacetime structure of scattering amplitudes and developed a formalism, the chirality-flow formalism, for straightforward calculation of Feynman diagrams.
Teaching
I teach Classical Mechanics and Special Relativity, FYTB14, during the first half of the fall semester.
During the second half of the fall semester I teach the first half of the Theoretical Particle Physics course, see FYTN18.
During the spring semester (odd years) I teach the continuous part of the Symmetries and Group Theory course, FYTN13.
Publications
Displaying of publications. Sorted by year, then title.
Amplitude factorization in the electroweak standard model
Simon Plätzer, Malin Sjodahl
(2024) Physical Review D, 110
Journal articleOne-loop calculations in the chirality-flow formalism
Malin Sjodahl, Andrew Lifson, Simon Plätzer
(2024) Physical Review D, 110
Journal articleWigner 6j symbols with gluon lines : completing the set of 6j symbols required for color decomposition
Stefan Keppeler, Simon Plätzer, Malin Sjodahl
(2024) Journal of High Energy Physics, 2024
Journal articleSimplifying QCD event generation with chirality flow, reference vectors and spin directions
Emil Boman, Andrew Lifson, Malin Sjodahl, Adam Warnerbring, Zenny Wettersten
(2024) Journal of High Energy Physics, 2024
Journal articleOne-loop calculations in the chirality-flow formalism
Andrew Lifson, Malin Sjodahl, Simon Plätzer
(2023)
PreprintWigner 6 j symbols for SU(N) : Symbols with at least two quark-lines
Judith Alcock-Zeilinger, Stefan Keppeler, Simon Plätzer, Malin Sjodahl
(2023) Journal of Mathematical Physics, 64
Journal articleAutomating scattering amplitudes with chirality flow
Andrew Lifson, Malin Sjödahl, Zenny Wettersten
(2022) European Physical Journal C, 82
Journal articleThe Chirality-Flow Formalism for Standard Model Calculations
Joakim Alnefjord, Andrew Lifson, Christian Reuschle, Malin Sjödahl
(2022) Springer Proceedings in Mathematics and Statistics, 396 p.387-394
Conference paperA Brief Look at the Chirality-Flow Formalism for Standard Model Amplitudes
Joakim Alnefjord, Andrew Lifson, Christian Reuschle, Malin Sjodahl
(2021) Proceedings of Science, 397
Conference paperThe chirality-flow formalism for the standard model
Joakim Alnefjord, Andrew Lifson, Christian Reuschle, Malin Sjodahl
(2021) European Physical Journal C, 81
Journal articleResampling algorithms for high energy physics simulations
Jimmy Olsson, Simon Plätzer, Malin Sjödahl
(2020) European Physical Journal C, 80
Journal articleIntroducing the chirality-flow formalism
Andrew Lifson, Christian Reuschle, Malin Sjödahl
(2020) Acta Physica Polonica B, 51 p.1547-1557
Journal articleThe chirality-flow formalism
Andrew Lifson, Christian Reuschle, Malin Sjodahl
(2020) European Physical Journal C, 80
Journal articleMonte Carlo event generators for high energy particle physics event simulation
Andy Buckley, Frank Krauss, Simon Plätzer, Michael Seymour, Simone Alioli, et al.
(2019)
PreprintColor matrix element corrections for parton showers
Simon Plätzer, Malin Sjodahl, Johan Thorén
(2018) Journal of High Energy Physics, 2018
Journal articleStress testing the vector-boson-fusion approximation in multijet final states
Francisco Campanario, Terrance M. Figy, Simon Plätzer, Michael Rauch, Peter Schichtel, et al.
(2018) Physical Review D, 98
Journal articleQCD multiplet bases with arbitrary parton ordering
Malin Sjodahl, Johan Thorén
(2018) Journal of High Energy Physics, 2018
Journal articleColorFull: a C plus plus library for calculations in SU(Nc) color space
Malin Sjödahl
(2015) European Physical Journal C. Particles and Fields, 75
Journal articleDecomposing color structure into multiplet bases
Malin Sjödahl, Johan Thorén
(2015) Journal of High Energy Physics
Journal articleRecursion in multiplet bases for tree-level MHV gluon amplitudes
Yijian Du, Malin Sjödahl, Johan Thorén
(2015) Journal of High Energy Physics , p.1-34
Journal articleBeyond the t-channel approximation : Next-to-leading order QCD corrections to electroweak Higgs boson plus three jet production at the LHC
Francisco Campanario, Terrance M. Figy, Simon Plätzer, Malin Sjödahl
(2014)
Conference paperHermitian Young operators
Stefan Keppeler, Malin Sjödahl
(2014) Journal of Mathematical Physics, 55
Journal articleColorMath-a package for color summed calculations in SU(N-c)
Malin Sjödahl
(2013) European Physical Journal C. Particles and Fields, 73
Journal articleNLO QCD corrections to electroweak Higgs boson plus three jet production at the LHC
Francisco Campanario, Terrance M. Figy, Simon Plätzer, Malin Sjödahl
(2013) Proceedings of Science, 2013
Conference paperElectroweak Higgs Boson Plus Three Jet Production at Next-to-Leading-Order QCD
Francisco Campanario, Terrance M. Figy, Simon Plaetzer, Malin Sjödahl
(2013) Physical Review Letters, 111
Journal articleThe Sudakov Veto Algorithm Reloaded
Simon Plätzer, Malin Sjodahl
(2012) European Physical Journal Plus, 127
Journal articleSubleading N-c improved parton showers
Simon Plaetzer, Malin Sjödahl
(2012) Journal of High Energy Physics
Journal articleOrthogonal multiplet bases in SU(N-c) color space
Stefan Keppeler, Malin Sjödahl
(2012) Journal of High Energy Physics
Journal articleColor structure for soft gluon resummation: A General recipe
Malin Sjodahl
(2009) Journal of High Energy Physics, 2009
Journal articleSymmetry of anomalous dimension matrices explained
Malin Sjodahl, Michael Seymour
(2008) Journal of High Energy Physics, 2008
Journal articleGravitational Scattering in the ADD-model at High and Low Energies.
Gösta Gustafson, Malin Sjödahl
(2008) European Physical Journal C. Particles and Fields, 53 p.109-119
Journal articleColor evolution of 2 → 3 processes
Malin Sjödahl
(2008) Journal of High Energy Physics
Journal articleGravitational scattering in the ADD model revisited
Malin Sjödahl
(2007) European Physical Journal C. Particles and Fields, 50 p.679-682
Journal articleSoft gluons in Higgs plus two jet production
Jeffrey R. Forshaw, Malin Sjodahl
(2007) Journal of High Energy Physics
Journal articleSmall-x phenomenology - Summary of the 3rd Lund small-x workshop in 2004
J. R. Andersen, S. Baranov, J. Bartels, G. G. Barnafoldi, G. Chachamis, et al.
(2006) European Physical Journal C. Particles and Fields, 48 p.53-105
Journal article reviewClassical and non-classical ADD-phenomenology with high-E-perpendicular to jet observables at collider experiments
Leif Lönnblad, Malin Sjödahl
(2006) Journal of High Energy Physics
Journal articlePhenomenology of Diffractive Higgs Production and Large Extra Dimensions
Malin Sjödahl
(2006)
DissertationUncertainties on central exclusive scalar luminosities from the unintegrated gluon distributions.
Leif Lönnblad, Malin Sjödahl
(2005) Journal of High Energy Physics, 5
Journal articleQCD-supression by black hole production at the LHC
Leif Lönnblad, Malin Sjödahl, Torsten Åkesson
(2005) Journal of High Energy Physics
Journal articleCentral exclusive scalar luminosities from the linked dipole chain model gluon densities
Leif Lönnblad, Malin Sjödahl
(2004) Journal of High Energy Physics
Journal article