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Stable Heavy Pentaquark States

Iain W. Stewart·Margaret E. Wessling·Mark B. Wise
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Abstract

If the Theta^+(1540) is interpreted as a bound state of a $\bar s$ quark and two (ud) diquarks in a relative P-wave, then it is very likely that there exist pentaquark states with a heavy antiquark, $\bar b$ or $\bar c$, and two ``light'' diquarks in a relative S-wave which are stable against strong decays. We make a mass estimate for exotic states of this type and discuss their weak decays. Isospin relations are constructed which test their flavor quantum numbers.

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Iain W. Stewart, Margaret E. Wessling, Mark B. Wise. 2004-02-09. Stable Heavy Pentaquark States. https://doi.org/10.1016/j.physletb.2004.03.087

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