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Durham University

Research & business

Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


 

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Events for 17 January 2020

Chris Halcrow: The quantum Skyrmion-Skyrmion problem

1:00pm, CM101

The Skyrme model was first considered in 1962. In it, atomic nuclei are modelled as topological solitons - the baryon (or atomic) number being identified with the topological charge of the theory. The model gained popularity when Witten showed that it had much in common with large N QCD. Despite decades of interest, the Skyrmion-Skyrmion problem (which models nucleon-nucleon interactions and scattering) is still poorly understood. In this talk, I will discuss recent work (with Derek Harland) where we explain that the spin-orbit force (an important component of the nucleon-nucleon interaction) arises naturally due to the geometry of the 2-Skyrmion configuration space. Moving on to nucleon scattering, I will discuss the minimal requirements needed to attempt this problem. These simple requirements have surprising consequences, accompanied by a list of new problems and questions.

Contact mathew.r.bullimore@durham.ac.uk for more information about this event.