Charmed Strange Pentaquarks in the Large $N_c$ Limit

Abstract

The properties of pentaquarks containing a heavy anti-quark and strange quarks are studied in the bound state picture. In the flavor SU(3) limit, there are many pentaquark states with the same binding energy. When the SU(3) symmetry breaking effects are included, however, three states become particularly stable due to a ``Gell-Mann--Okubo mechanism''. They are the $\bar{Q}suud$ and $\bar{Q}sudd$ states discussed by Lipkin, and a a previously unstudied $\bar{Q}ssud$ state. These states will have $J^P={\frac{1}{2}}^{+}$ and their masses are estimated. These states, if exist, may be seen in experiments in the near future.

12 pages in REVTeX, no figures

References in corpus (6)

• The Baryon Isgur-Wise Function in the Large $N_c$ Limit
• Properties of Baryons Containing a Heavy Quark in the Skyrme Model
• Baryons Containing a Heavy Quark as Solitons
• Pentaquark Exotic Baryons in the Skyrme Model
• Search for Flavoured Multiquarks in a Simple Bag Model
• From Tetraquark to Hexaquark: A Systematic Study of Heavy Exotics in the Large $N_c$ Limit

Cited by in corpus (4)

• Search for the pentaquark via the P^0_{{c bar}s} --> phi,pi,p decay
• Pentaquark Theta^+(1540) production in gamma N --> K Anti-K N
• Study the exotic ${\Theta }^{+}$ with polarized photon beams
• Search for a strongly decaying neutral charmed pentaquark