Pentaquarks, Skyrmions and the Vector Manifestation of Chiral Symmetry

Details Pentaquarks, Skyrmions and the Vector Manifestation of Chiral Symmetry Pentaquarks, Skyrmions and the Vector Manifestation of Chiral Symmetry

2005-02-05

arxiv.org/abs/hep-ph/0502049v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures. Based on talks given at the Hanyang-KIAS Workshop on Multifaceted Skyrmions and Effective Field Theory, K

Scientific paper

The structure of the pentaquark baryon $\Theta^+$ is discussed in terms of a $K^+$-skyrmion binding where the skyrmion arises as a soliton in hidden local symmetry approach to low-energy hadronic physics which may be considered as a holographic dual to QCD. The "vector manifestation" of chiral symmetry encoded in the effective theory Wilsonian-matched to QCD is proposed to play an important role in the binding. Among the options available for understanding the pentaquark structure is the intriguing possibility that the $\Theta^+$ is a Feshbach resonance generated by the solitonic matter that drives the Wess-Zumino term that in the presence of $K^\star$ acts like a magnetic field.

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