Prospects for Pentaquark Production at Meson Factories

Abstract

Following Rosner [hep-ph/0312269], we consider B-decay production channels for the exotic I=0 and $I=3/2$ pentaquarks that have been recently reported. We also discuss new search channels for isovector pentaquarks, such as the ${\Theta }^{\ast ++}(\bar{s}duuu)$, that are generically present in chiral soliton models but were not observed in recent experiments. Futhermore, we argue that weak decays of charmed baryons, such as the ${\Lambda }_c^{+}$ and ${\Xi }_c^0$, provide another clean way of detecting exotic baryons made of light quarks only. We also discuss discovery channels for charmed pentaquarks, such as the isosinglet ${\Theta }_c^0(\bar{c}udud)$, in weak decays of bottom mesons and baryons. Finally, we discuss prospects for inclusive production of pentaquarks in $e^{+}{e}^{-}$ collisions, with associated production of particles carrying the opposite baryon number.

Comments: 15 pages, LaTeX; v2,v3: minor corrections, references added; v4: minor modifications, the version published in Physics Letters B