Exotic meson-meson molecules and compact four--quark states

Details Exotic meson-meson molecules and compact four--quark states Exotic meson-meson molecules and compact four--quark states

2009-03-17

arxiv.org/abs/0903.2949v1

Phys.Rev.D79:074010,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.79.074010

We present an exact calculation of $S$ and $P$ wave $QQ\bar n\bar n$ states using different standard nonrelativistic quark--quark potentials. We explore in detail the charm and bottom sectors looking for bound states that could be measured within existing facilities. Against the proliferation of four--quark states sometimes predicted in the literature, we found a small number of candidates to be stable. We analyze their properties in a trial to distinguish between compact and molecular states. Possible decay modes are discussed.

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