Lattice Status of Gluonia/glueballs
نویسنده
چکیده
The 0 glueball in pure gauge theory is a well defined quantity that can be used to test our understanding and ability to solve theory. It is also interesting to understand how, or if, the 0 glueball contributes to the physical light flavour singlet 0 mesons. Finding glueball degrees of freedom in the flavour singlet mesons is complicated, because other non-perturbative objects such as tetraquark, meson molecule or, even quarkantiquark degrees of freedom can also be building blocks of scalar mesons. There are reviews that discuss these broader issues in more detail [1–3].
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تاریخ انتشار 2008