[Theory-seminars] Postdoc interview January 7. 1pm. Room L102

[Cesar Fernandez-Ramirez]

Dear all,

tomorrow Jan. 7 we will have the fourth postdoc interview in room L102 starting at 1pm.

Please find enclosed, speaker, title and abstract.

- Speaker: Alessandro Pilloni
- Title: Exotic Hadron Spectroscopy
- Abstract: The past decade witnessed a remarkable proliferation of exotic charmonium-like resonances discovered at accelerators. In particular, the recently observed charged states are clearly not interpretable as q-qbar mesons. Notwithstanding the considerable advances on the experimental side, conflicting theoretical descriptions do not seem to provide a definitive picture about the nature of the so-called XYZ particles. I will discuss why the recent experimental discoveries speak in favour of the existence of compact four-quark particles (tetraquarks).


-- 
César Fernández-Ramírez

Theory Center -- Jefferson Lab
12000 Jefferson Ave., Newport News, VA 23606, USA

Phone: (+1) 757-269-7844
Fax: (+1) 757-269-7002
E-mail: cesar at jlab.org