Particle Physics Seminar: Topics in the study of exotic stringy hadrons

Abstract:

We study exotic stringy hadrons using the HISH (holographically inspired stringy hadrons) model, which is a map from a holographic confining background to flat 4D spacetime, by exploring the possibilities representing them as graphs made of combinations of edges (strings) and nodes (Baryonic vertices). In the first part, we classify the different exotic states by a notation based on the number of Baryonic vertices, the Baryon number charge and the number of cycles of the exotic state. We also expand the classification for the more complicated states based on the configurations of the cycles in the graph. In the second part  we view the Baryonic vertex as an interaction vertex of Nc strings and construct the effective action of such an interaction. We then provide instructions on how to heuristically build an amplitude that includes the effective interacting theory, and begin to calculate the amplitude of a Baryonic vertex interaction 1-loop order correction to the propagator of a meson.

Seminar Organizers: Dr. Michael Geller & Dr. Adi Ashkanzi