${\Theta }^{+}$ Hypernuclei

Abstract

We present results for the selfenergy of the ${\Theta }^{+}$ pentaquark in nuclei associated with two sources: the $KN$ decay of the ${\Theta }^{+}$ and the two meson baryon decay channels of the ${\Theta }^{+}$ partners in an antidecuplet of baryons. The first source is shown to produce a small potential, unable to bind the ${\Theta }^{+}$ in nuclei, while the second source gives rise to a large attractive potential. At the same time we show that the width of the ${\Theta }^{+}$ in nuclei is small, such that, in light and medium nuclei, many bound ${\Theta }^{+}$ states would appear with a separation between levels appreciably larger than the width of the states, thus creating an ideal scenario for pentaquark spectroscopy in nuclei.

16 pages, 8 figures

References in corpus (20)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• SU(3) Chiral Dynamics with Coupled Channels: Eta and Kaon Photoproduction
• K+ nucleon scattering and exotic S=+1 Baryons
• Phi decay in nuclei
• Experimental Limits on the Width of the Reported Theta(1540)+
• Weak Decay of Lambda Hypernuclei
• Phi meson mass and decay width in nuclear matter
• Influence of a Z+(1540) resonance on K+N scattering
• Modifications of the Rho Meson from the Virtual Pion Cloud in Hot and Dense Matter
• $\Lambda (1405)$ production in the ${\pi }^{-}p\to K^0\pi \Sigma$ reaction
• New results on the limit for the width of the exotic Theta^+ resonance
• Chiral nonperturvative approach to the isoscalar s-wave pion-pion interaction in a nuclear medium
• The pentaquark in K-plus-d total cross section data
• Weak Decay of Lambda Hypernuclei
• Pentaquark and diquark-diquark clustering: a QCD sum rule approach
• Even Parity $\Theta$-Pentaquark and Stable Strange Nuclear Matter
• Two-meson cloud contribution to the baryon antidecuplet binding
• Kaon-antikaon nuclear optical potentials and the kappa meson in the nuclear medium

Cited by in corpus (11)

• Generalized mass formula for non-strange and hyper nuclei with SU(6) symmetry breaking
• The effect of the in-medium ${\Theta }^{+}$ pentaquark on the kaon optical potential
• Pentaquark ${\Theta }^{+}$ in nuclear matter and ${\Theta }^{+}$ hypernuclei
• Two-meson cloud contribution to the baryon antidecuplet binding
• Strange and Heavy Flavoured Hypernuclei in Chiral Soliton Models
• Phenomenological study of two-meson couplings of Theta+
• Strange Exotic States and Compact Stars
• Production of ${\Theta }^{+}$ Hypernuclei with the $(K^{+},{\pi }^{+})$ reaction
• In-medium Properties of ${\Theta }^{+}$ as a K$\pi$N structure in Relativistic Mean Field Theory
• Antikaon angular distributions in the reaction $\gamma d\to K^{-}{\Theta }^{+}p\to K^{-}{K}^{+}np$ near the threshold and the parity of the ${\Theta }^{+}$ pentaquark
• Pentaquarks in the medium in the quark-meson coupling model