Extraction of radiative decay width for the non-strange partner of Theta^+

Abstract

Using the results of the GRAAL collaboration on the ηphotoproduction from the neutron target, we attempt to extract the partial radiative width of the possible new nucleon resonance N^*(1675). The obtained estimates support this resonance to be a very attractive candidate for the non-strange member of the exotic antidecuplet of baryons -- a partner of the Θ^+ pentaquark. Our phenomenological value for the transition magnetic moment μ(n^* n), appears to be in good agreement with predictions of the Chiral Quark Soliton Model.

4 pages, v2 corresponds to the journal publication

References in corpus (1)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by in corpus (29)

• eta-photoproduction in the resonance energy region
• Eta-meson production in the resonance energy region
• Photoproduction of eta-mesons on the deuteron above S11(1535) in the presence of a narrow P11(1670) resonance
• Photoproduction of $\eta$ mesons off neutrons from a deuteron target
• A new $N^{\ast }(1675)$ resonance in the $\gamma N\to \eta N$ reaction
• $\eta$ photoproduction on the quasi-free nucleons in the chiral quark model
• Evidence for Narrow N*(1685) Resonance in Quasifree Compton Scattering on the Neutron
• Baryon Resonance Analysis from SAID
• New Narrow Nucleon N*(1685)
• Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model
• Evidence for narrow resonant structures at $W\approx 1.68$ and $W\approx 1.72$ GeV in real Compton scattering off the proton
• eta photoproduction and N* resonances
• Vector transition form factors of the $N{K}^{\ast }\to {\Theta }^{+}$ and $N{\bar{K}}^{\ast }\to {\Sigma }_{\overline{10}}^{\ast -}$ in the SU(3) chiral quark-soliton model
• Quark spin content of the proton, hyperon semileptonic decays, and the decay width of the ${\Theta }^{+}$ pentaquark
• To see the exotic Theta^+ baryon from interference
• Observation of Narrow $N^{+}(1685)$ and $N^0(1685)$ Resonances in $\gamma N\to \eta \pi N$ Reactions
• K*-couplings for the antidecuplet excitation
• Eta and kaon production in a chiral quark model
• Evidence for a narrow N(1685) resonance in eta photoproduction off the nucleon
• Search for narrow resonances in $\pi p$ elastic scattering from the EPECUR experiment
• Mass splittings of the baryon decuplet and antidecuplet with the second-order flavor symmetry breakings within a chiral soliton model
• New Narrow $N(1685)$ and $N(1726)$? Remarks on the Interpretation of the Neutron Anomaly as an Interference Phenomenon
• Electric properties of the baryon anti-decuplet in the SU(3) chiral quark-soliton model
• On Narrow Nucleon Excitation N*(1685)
• Pentaquark Theta^+ production via gamma N ->K^*bar Theta^+(3/2^(+-))
• New narrow N*(1685) resonance: review of observations
• A new nucleon resonance in eta photoproduction
• The neutron anomaly in the gamma N --> eta N cross section through the looking glass of the flavour SU(3) symmetry
• Notes on New Narrow N*