A jet is a narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon in a particle physics experiment. The current description of strong interactions, governing the dynamics of jets, Quantum Chromo-Dynamics (QCD), predicts `confinement’: that is, particles carrying a colour charge, such as quarks and gluons, cannot exist in free form. Therefore they fragment into colourless hadrons before they can be directly detected, indeed becoming jets.
Jets have long been studied in particle physics experiments and a very good understanding of their dynamics has been achieved. However, the advent of the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) calls for gaining a much deeper insight into their behaviour, in view of the fact that the large energy available at the LHC, unprecedented in the history of particle physics, produce jets in much larger numbers than previously and over a kinematic range never explored.
The project seeks to clarify the dynamics of jets at the LHC above and beyond current knowledge, by exploiting advanced computation models of multi-particle interactions relying upon Monte Carlo event generation for the hadronization process combined with very advanced QCD predictions for the hard scattering and fragmentation of quarks and gluons, in order to closely mimic the actual conditions existing at the LHC. A significant step change with respect to ongoing studies and this will be facilitated by high performance computing.
Finally, being the LHC a hadron collider, it is clear that any signal of new physics will have a significant number of jets both accompanying it and masking it as background, so that their understanding is also crucial to enable one to disentangle new physics beyond the Standard Model, which has remained as the primary task of the LHC, now that the existence of a Higgs boson has been proved.
If you wish to discuss any details of the project informally, please contact Prof Stefano Moretti, Southampton High Energy Physics (SHEP) research group, Email: [email protected]
, Tel: +44 (0) 2380 596829.
This project is run through participation in the EPSRC Centre for Doctoral Training in Next Generation Computational Modelling (http://ngcm.soton.ac.uk). For details of our 4 Year PhD programme, please see http://www.findaphd.com/search/PhDDetails.aspx?CAID=331&LID=2652
For a details of available projects click here http://www.ngcm.soton.ac.uk/projects/index.html
Visit our Postgraduate Research Opportunities Afternoon to find out more about Postgraduate Research study within the Faculty of Engineering and the Environment: http://www.southampton.ac.uk/engineering/news/events/2016/02/03-discover-your-future.page