Photoproduction of exotic meson resonances

Abstract

The Jefferson Laboratory in Virginia hosts two experiments (GlueX and CLAS12) dedicated to the study of meson interaction. These experiments are searching for exotic mesons produced by photons on a hydrogen target. The most promising signal of an exotic meson, in this case a state composed of a q qbar together with an extra gluon, has been observed in the P-wave of the eta+pi0 final state. However the confirmation of this discovery requires a comparison between theoretical predictions and experimental observables.
The project consists in studying the reaction gamma + p --> eta + pi0 + p at high energies and developing a model for the production of exotic meson in this reaction (to be compared with GlueX preliminary data)

Advisors
Vincent Mathieu
References

- http://www.gluex.org/
- C.A. Meyer, E.S. Swanson, https://arxiv.org/pdf/1502.07276.pdf
- V. Gribov, Camb.Monogr.Part.Phys.Nucl.Phys.Cosmol. 27 (2012)
- V. Mathieu et al, Phys. Rev. D 100 (2019) 054017
- https://inspirehep.net/files/f024c81468fb78f2d352bf56efcf2d80