Glueball molecules

by Alexey Petrov (Penn State)

Room 3344 (5101.01.344) and online (if requested in advance) (

Room 3344 (5101.01.344) and online (if requested in advance)


Experimental searches for pure glueball states so far yielded no results. This is believed to be because glueballs mix with the qq-bar states. I will discuss an alternative mechanism, the formation of the glueball-meson molecular states. I will argue that the wave functions of already observed excited meson states may contain a significant part due to such molecular states. I will also discuss applications of effective field theories for non-relativistic scalar fields to the description of the glueball-meson molecules.