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Durham University

Department of Mathematical Sciences

Seminars

This week's seminars

Centre for Particle Theory Colloquia: New aspects of gauge anomalies in particle physics

Presented by IƱaki Garcia Etxebarria, Durham University

12 February 2019 17:00 in OC218

During the last few years there has been a transformation in our understanding of symmetries and anomalies. The fundamental ideas ultimately originate from condensed matter physics, and more specifically from the classification of topological phases of matter. I will review the basics of the modern viewpoint, and explain a number of results that follow from applying this philosophy to particle physics.

Briefly: we will find that the Standard Model is anomaly-free on arbitrary spacetime topologies (oriented and unoriented), a natural Z_4 refinement of (-1)^F (with F the fermion number) is anomaly free only if the number of fermions in the SM is a multiple of 16, and proton triality being anomaly-free implies that the number of generations is a multiple of 3.

Contact stefano.cremonesi@durham.ac.uk or p.e.dorey@durham.ac.uk for more information

Refreshments at 16:30 in CM 211 (Maths Coffee Room).

Research Seminars by Series

The research groups in the Department of Mathematical Sciences hold several seminar series in term time. Information on date, time and location are available here.

For information on previous years' seminars please see the seminar archives pages.