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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Topological Solitons Seminar: BPS Skyrme model and binding energy of nuclei

Presented by Andrzej Wereszczynski,

27 November 2013 13:00 in CM219

I will discuss the BPS Skyrme model and its near BPS extension from the perspective of the applications to the baryon and nuclear physics.
I use the classical BPS soliton solutions of the BPS Skyrme model together with corrections from the collective coordinate quantization of spin and isospin, the electrostatic Coulomb energies, and a small explicit breaking of the isospin symetry to calculate nuclear binding energies. I find that the resulting binding energies are already in excellent agreement with their physical values for heavier nuclei.
I will also show how the model can simultaneously solve the problem if too big value of the compression modulus for the Skyrme model and too small roper masses.
Finally, I will discuss some properties of the BPS Skyrme model with relation to the large Nc limit.

Contact stefano.bolognesi@durham.ac.uk for more information