Experimental Review on Pentaquarks

Abstract

The experimental evidence for pentaquarks is reviewed and compared with the experiments that do not see any sign of pentaquarks. This paper is based on a lecture given at the 33rd ITEP Winter School of Physics in the beginning of 2005. Results obtained since then are summarized in the epilogue.

Update of the review given at the ITEP Winter School of Physics and at the 19th Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Aosta Valley, Italy, 27 Feb - 5 Mar 2005. 25 pages, 15 figures. Discussion of new DIANA results is corrected and supplemented

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• The Cosmological Parameters 2006
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• Influence of a Z+(1540) resonance on K+N scattering
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• Deformation of C isotopes
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• Search for the ${\bar{\Theta }}^{-}\to$ K${}^{-}$ $\bar{n}$ with PHENIX
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• Further evidence for formation of a narrow baryon resonance with positive strangeness in K+ collisions with Xe nuclei
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• Comment on the ${\Theta }^{+}$-production at high energy
• Pentaquark as a NK^* bound state with TJ^P=0{3/2}^-
• Axial current matrix elements and pentaquark decay widths in chiral soliton models
• Comment on The Evidence for a Pentaquark and Kinematic Reflections

Cited by in corpus (17)

• Baryon spectroscopy
• Multiquark States
• The Hadronic Final State at HERA
• Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
• Formation of a narrow baryon resonance with positive strangeness in K^+ collisions with Xe nuclei
• Regge Trajectories of Exotic Hadrons in the Flux Tube Model
• SU(6), Triquark states, and the pentaquark
• Search for a narrow baryonic state decaying to $p{K}_S^0$ and $\bar{p}{K}_S^0$ in deep inelastic scattering at HERA
• Testing the bootstrap constraints in the strange sector
• Observation of a narrow baryon resonance with positive strangeness formed in $K^{+}$Xe collisions
• The Quark Structure of Pentaquarks
• Baryon correlators containing different diquarks from lattice simulations
• Exotic and Non-Exotic Baryon Properties on the Light Cone
• Differential technique for the covariant orbital angular momentum operators
• Experimental search for radiative decays of the pentaquark baryon Θ^+(1540)
• Revisiting the pentaquark episode for lattice QCD
• On the Decay of Soliton Excitations