List of previous students

Nicola Orlando
Faten Hariri
Emma Kuwertz
Spyridon Argyropoulo
Sabrina Sacerdoti
Simone Amoroso
Jesper Roy Christiansen
Nathan Hartland
Christian Roehr
Benjamin Watt
Philip Ilten
Nishita Desai
Sercan Sen
Miroslav Myska
Sudha Ahuja
Holger Schulz
Avi Gershan
Aleksander Kusina
Magdalena Slawinska
Flavia Dias
Kenneth Wraight
Irais Bautista Guzman
Sparsh Navin
Paolo Francavilla
Riccardo Di Sipio
Seyi Latunde-Dada
Devdatta Majumder
Martijn Gosselink
Christopher Bignamini
Marek Schönherr
Michal Deak
Noam Hod
Florian Bechtel
Jonathan Ferland
Manuel Bähr
Alexander Flossdorf
Piergiulio Lenzi

Colour reconnections have emerged as one of the main uncertain aspects of soft hadron-hadron collider physics, with significant implications for minimum-bias and underlying-event physics, as well as for precision measurements, most importantly the determination of the top quark mass in hadronic final states. We argue that a vital missing ingredient in current models is an understanding of the implications of QCD coherence on the process of hadronization, especially in the context of multiple parton interactions (MPI). We present a new model, implemented in PYTHIA 8, that combines the multiplet structure of full-colour SU(3) with the string area law to decide between which partons confining potentials (strings) should arise. The model includes the possibility to form ``baryonic'' colour topologies, such as when two quarks combine to form an overall antitriplet charge. We tune the model to a set of ee and pp reference data, and investigate the consequences of the remaining model uncertainties on the top-quark mass extraction.