Searching for signatures around 1920 MeV of a $N^{\ast }$ state of three hadron nature

Abstract

We provide a series of arguments which support the idea that the peak seen in the $\gamma p\to K^{+}\Lambda$ reaction around 1920 MeV should correspond to the recently predicted state of $J^P=1/2^{+}$ as a bound state of $K\bar{K}N$ with a mixture of $a_0(980)N$ and $f_0(980)N$ components. At the same time we propose polarization experiments in that reaction as a further test of the prediction, as well as a study of the total cross section for $\gamma p\to K^{+}{K}^{-}p$ at energies close to threshold and of $d\sigma /d{M}_{inv}$ for invariant masses close to the two kaon threshold.

published version

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• A gauge invariant chiral unitary framework for kaon photo- and electroproduction on the proton
• Unitary coupled channel analysis of the $\Lambda (1520)$ resonance
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• Further evidence for N(1900)P_{13} from photoproduction of hyperons
• Three-body hadronic structure of low-lying $1/2^{+}$ $\Sigma$ and $\Lambda$ resonances
• Search for ${\Theta }^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^{+}{K}^{-}p$
• Interpretation of K+K0bar pair production in pp collisions
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Cited by in corpus (39)

• The nature of the Lambda(1405) resonance in chiral dynamics
• The Y(4260) as a $J/\psi K\bar{K}$ system
• $DK$, $DDK$, and $DDDK$ molecules--understanding the nature of the $D_{s0}^{\ast }(2317)$
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Role of vector and pseudoscalar mesons in understanding $1/2^{-}$ $N^{\ast }$ and $\Delta$ resonances
• Faddeev fixed-center approximation to the $N\bar{K}K$ system and the signature of a $N^{\ast }(1920)(1/2^{+})$ state
• $K\Lambda (1405)$ configuration of the $K\bar{K}N$ system
• Theoretical study of the $KK\bar{K}$ system and dynamical generation of the K(1460) resonance
• A possible partner state of the $Y(2175)$
• Origin of the second peak in the cross section of the $K^{+}\Lambda$ photoproduction
• Bound state formation in the $DDK$ system
• A new perspective on the Faddeev equations and the $\bar{K}NN$ system from chiral dynamics and unitarity in coupled channels
• The role of $f_0(1710)$ in the $\varphi \omega$ threshold peak of $J/\Psi \to \gamma \varphi \omega$
• Role of the possible ${\Sigma }^{\ast }({\frac{1}{2}}^{-})$ state in the $\Lambda p\to \Lambda p{\pi }^0$ reaction
• Towards the Minimal Spectrum of Excited Baryons
• Scaling and Resonances in Elementary K^+ Lambda Photoproduction
• Coupled $K^{+}\Lambda$ and $K^0\Lambda$ photoproduction off the nucleon: Consequences from the recent CLAS and MAMI data and the $N(1680)P_{11}$ narrow state
• Photoproduction of ${\Lambda }^{\ast }$ and ${\Sigma }^{\ast }$ resonances with $J^P=1/2^{-}$ off the proton
• Observation of a cusp-like structure in the $\gamma p\to K^{+}{\Sigma }^0$ cross section at forward angles and low momentum transfer
• Role of the ${\Delta }^{\ast }(1940)$ in the ${\pi }^{+}p\to K^{+}{\Sigma }^{+}(1385)$ and $pp\to n{K}^{+}{\Sigma }^{+}(1385)$ reactions
• Prediction of possible exotic states in the $\eta \bar{K}{K}^{\ast }$ system
• Decay properties of $N^{\ast }(1895)$
• Progress and Issues in the Electromagnetic Production of Kaon on the Nucleon
• Description of $\rho (1700)$ as a $\rho K\bar{K}$ system with the fixed center approximation
• Review on dynamically generated resonances
• Signature of $N^{\star }$ resonance in mass spectrum of the $K\bar{K}N$ decay channels
• Two, three, many body systems involving mesons
• $\bar{K}\bar{D}N$ molecular state as a "$uuds\bar{c}$ pentaquark" in a three-body calculation
• Study of the $\bar{K}N$ system and coupled channels in a finite volume
• Three-body hadron systems with strangeness
• Hyperon Photo and Electro Production at CLAS
• Dynamically generated states from the $\eta K^{\ast }{\bar{K}}^{\ast }$, $\pi K^{\ast }{\bar{K}}^{\ast }$, and $K{K}^{\ast }{\bar{K}}^{\ast }$ systems within the fixed-center approximation
• Dynamically generated resonances
• Exotic properties of N^*(1895) and its impact on photoproduction of light hyperons
• Delta rho pi interaction leading to N* and Delta* resonances
• A new N* resonance as a hadronic molecular state
• Pseudoscalar mesons in nuclei and partial restoration of chiral symmetry
• Hadronic few-body systems in chiral dynamics, -- Few-body systems in hadron physics --
• Three body systems with strangeness and exotic systems