Every result in modern particle physics, from the Higgs discovery, searches for dark matter, and investigations of the quark–gluon plasma, depends on simulated collisions. As the world’s most widely used Monte Carlo event generator for particle physics, PYTHIA, developed and maintained in Lund, has been a quiet but globally indispensable Swedish contribution to high-energy physics for...
A hot topic at the Large Hadron Collider (LHC) is the production of anti-nuclei. In ultra high-energy collisions, nuclei with very low binding energies are not expected to survive the dense and hot final state environment. The traditional view of nuclei production has been that antinuclei form via coalescence after the hot environment has dissipated. However, statistical thermal models, where...
We discuss the resonant production of Higgs pairs and its interference with the non-resonant di-Higgs production in the NMSSM. We deconstruct the differential cross section to different contributions arising from Standard Model box and triangle diagrams, resonant diagrams arising from heavy Higgs bosons, squark diagrams and the interferences between them. Interference lead to substantial...
