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.

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

References in corpus (25)

• Observation of an Exotic S = -2, Q = -2 Baryon Resonance in Proton-Proton Collisions at the CERN SPS
• Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton
• Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
• A Diquark-Triquark Model for the KN Pentaquark
• Experimental Limits on the Width of the Reported Theta(1540)+
• Lattice study of exotic S=+1 baryon
• Influence of a Z+(1540) resonance on K+N scattering
• Observation of B+ -> p pbar pi+, B0 -> p pbar K0, and B+ -> p pbar K*+
• Where are the missing members of the baryon antidecuplet?
• The Evidence for a Pentaquark Signal and Kinematic Reflections
• Partners of the Theta^+ in Large N_c QCD
• Systematics of Exotic Cascade Decays
• The Constituent Quark Model Revisited - Quark Masses, New Predictions for Hadron Masses and KN Pentaquark
• A Naturally Narrow Positive Parity Theta^+
• The width of ${\Theta }^{+}$ for large $N_c$ in chiral quark soliton model
• The narrow width of the Θ^+ - a possible explanation
• The theta^+ baryon in soliton models: large Nc QCD and the validity of rigid-rotor quantization
• Exotic states of matter in heavy meson decays
• The Narrow Theta(1543)--A QCD Dilemma: Tube or Not Tube?
• History of exotic Meson (4-quark) and Baryon (5-quark) States
• Probing the partonic structure of pentaquarks in hard electroproduction
• Production of Theta(1540) and Xi Pentaquark States in Proton-Proton Interactions
• Prospects for Pentaquark Searches in $e^{+}{e}^{-}$ Annihilations and $\gamma \gamma$ Collisions
• The anticharmed exotic baryon Theta_c and its relatives
• Evidence for Two-Body Hadronic Decays of the Upsilon

Cited by in corpus (18)

• Chiral-Soliton Predictions for Exotic Baryons
• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
• Light-Front Approach for Heavy Pentaquark Transitions
• Pentaquark Theta^+(1540) production in gamma N --> K Anti-K N
• Anti-charmed pentaquark ${\Theta }_c(3099)$ from QCD sum rules
• Pentaquark baryons in SU(3) quark model
• Heavy Pentaquarks
• Exotic states of matter in heavy meson decays
• QCD sum rules for the anti-charmed pentaquark
• Light-Front Approach for Pentaquark Strong Decays
• Hadronic Decays Involving Heavy Pentaquarks
• Heavy and Light Pentaquark Chiral Lagrangian
• Prospects for Pentaquark Searches in $e^{+}{e}^{-}$ Annihilations and $\gamma \gamma$ Collisions
• Coalescence model for Theta_c pentaquark formation
• Calculating loops without loop calculations: NLO computation of pentaquark correlators
• A Study of B+->p pbar K+ and a Search for a Theta*++ Pentaquark Candidate in B Decay
• Composite Fermions as Deformed Oscillators: Wavefunctions and Entanglement
• Beyond CP violation: hadronic physics at BaBar