Rare quark fragmentation for future discoveries

The purpose of this project is to develop and deliver a novel theoretical framework neccesary to enable discoveries in the heavy quark sector, at upcoming runs at the Large Hadron Collider.

Such discoveries are dependent on reliable Monte Carlo simulations of theory predicting how the heavy quarks form the hadrons, which can be observed in detector experiments.

Currently the theoretical models for heavy quark production are lacking, and the Monte Carlo simulation is so computationally demanding, that it will not be feasible to use them for discoveries in future runs, where data amounts will increase by more than 1000-fold. This projects aims to develop new models for the transition to hadrons, based on lessons from 10-years of LHC data.

Here we have learned thatmultibody dynamics and coherence in the final state of collisions cannot, as previously assumed, be neglegted. These effects will therefore be a cornerstone of the developed models.

The models will be implemented with differentiable programming, which will allow for a much less computationally demanding treatment of the model, which will both make them feasible for discoveries, but also save on the increasing energy consumption from simulation.The project group will consist of the PI, one PhD student, who will work together with international collaborators of the PI.

The core of the project will be the differentiable model, which will be the first of its kind, and be developed by the project group.