Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron

Abstract

The gamma n -> K+ K- n reaction on 12C has been studied by measuring both K+ and K- at forward angles. A sharp baryon resonance peak was observed at 1.54 +- 0.01 GeV with a width smaller than 25 MeV and a Gaussian significance of 4.6 sigma. The strangeness quantum number (S) of the baryon resonance is +1. It can be interpreted as a molecular meson-baryon resonance or alternatively as an exotic 5-quark state (uudd{s_bar}) that decays into a K+ and a neutron. The resonance is consistent with the lowest member of an anti-decuplet of baryons predicted by the chiral soliton model.

12 pages, 3 encapsulated postscript figures

References in corpus (5)

• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• Chiral Dynamics and the Low Energy Kaon-Nucleon Interaction
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• Photoproduction of the Lambda(1405) on the proton and nuclei
• On the search for a narrow penta-quark Z${}^{+}$ baryon in NN interactions

Cited by in corpus (559)

• NJL-model analysis of dense quark matter
• The hidden-charm pentaquark and tetraquark states
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Pentaquark and Tetraquark states
• Diquarks and Exotic Spectroscopy
• An updated review of the new hadron states
• Exotics: Heavy Pentaquarks and Tetraquarks
• The Physics of the B Factories
• Baryon spectroscopy
• Observation of an Exotic $S=+1$ Baryon in Exclusive Photoproduction from the Deuteron
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Evidence for the positive-strangeness pentaquark ${\Theta }^{+}$ in photoproduction with the SAPHIR detector at ELSA
• Identifying exotic hidden-charm pentaquarks
• Threshold cusps and triangle singularities in hadronic reactions
• Observation of an Exotic S = -2, Q = -2 Baryon Resonance in Proton-Proton Collisions at the CERN SPS
• Multiquark States
• Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton
• Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
• A Diquark-Triquark Model for the KN Pentaquark
• Quark-model study of few-baryon systems
• $\bar{D}{\Sigma }_c^{\ast }$ and ${\bar{D}}^{\ast }{\Sigma }_c$ interactions and the LHCb hidden-charmed pentaquarks
• 50 Years of Quantum Chromodynamics
• The Possible Interpretations of Y(4260)
• Exotic hadrons: review and perspectives
• Evidence for a narrow baryonic state decaying to K0s-p and K0s-pbar in deep inelastic scattering at HERA
• Baryonic Resonances from Baryon Decuplet-Meson Octet Interaction
• phi photo-production from Li, C, Al, and Cu nuclei at Egamma=1.5 - 2.4 GeV
• Evidence for a narrow resonance at 1530 MeV/c2 in the K0 p - system of the reaction pp --> Sigma+ K0 p from the COSY-TOF experiment
• Pentaquark hadrons from lattice QCD
• Evidence for a Narrow Anti-Charmed Baryon State
• New Hadron States
• Studying Exotic Hadrons in Heavy Ion Collisions
• K+ nucleon scattering and exotic S=+1 Baryons
• Comprehensive analysis of the wave function of a hadronic resonance and its compositeness
• Understanding Pentaquark States in QCD
• Super-Radiant Dynamics, Doorways, and Resonances in Nuclei and Other Open Mesoscopic Systems
• Evidence for diquarks in lattice QCD
• New results on the Roper resonance and the P_{11} partial wave
• Stable $uudd\bar{s}$ pentaquarks in the constituent quark model
• Experimental Limits on the Width of the Reported Theta(1540)+
• Evidence of the Θ^+ in the γd \to K^+K^-pn reaction
• Nonstrange and other unitarity partners of the exotic Theta+ baryon
• One-pion-exchange final-state-interaction and the pbar p near threshold enhancement in J/psi -> gamma pbar p decays
• Detailed Analysis of the Tetraquark Potential and Flip-Flop in SU(3) Lattice QCD
• Lattice study of exotic S=+1 baryon
• Search for the Pentaquark State in $\psi (2S)$ and $J/\psi$ Decays to $K_S^{0}p{K}^{-}\bar{n}$ and $K_S^0\bar{p}{K}^{+}n$
• Is pentaquark doublet a hadronic molecule?
• A New Hadron Spectroscopy
• Color Superconductivity at Moderate Baryon Density
• Pentaquark in the Skyrme Model
• Chiral-Soliton Predictions for Exotic Baryons
• Experimental Search for Pentaquarks
• Penta-quark baryon from the QCD Sum Rule
• A schematic model for pentaquarks based on diquarks
• Analysis of $P_c^{+}(4380)$ and $P_c^{+}(4450)$ as pentaquark states in the molecular picture with QCD sum rules
• Search for the ${\Theta }^{+}$ pentaquark in the reaction $\gamma d\to p{K}^{-}{K}^{+}n$
• Phenomenology of the Pentaquark Antidecuplet
• Z^* Resonances: Phenomenology and Models
• Interpretation of the Theta+ as an isotensor pentaquark with weakly decaying partners
• A study of pentaquarks on the lattice with overlap fermions
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Group-theoretical construction of extended baryon operators in lattice QCD
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• The $N^{\ast }(1710)$ as a resonance in the $\pi \pi N$ system
• SU(6) Extension of the Weinberg-Tomozawa Meson-Baryon Lagrangian
• Exotic baryons from a heavy meson and a nucleon -- Negative parity states --
• Quasi-monoenergetic femtosecond photon sources from Thomson Scattering using laser plasma accelerators and plasma channels
• On photoexcitation of baryon antidecuplet
• Search for ${\Theta }^{+}(1540)$ pentaquark in high statistics measurement of $\gamma p\to {\bar{K}}^0{K}^{+}n$ at CLAS
• First Study for the Pentaquark Potential in SU(3) Lattice QCD
• Is Theta+(1540) a Kaon--Skyrmion Resonance?
• Influence of a Z+(1540) resonance on K+N scattering
• Are ${\Theta }^{+}$ and the Roper resonance diquark-diquark-antiquark states?
• The ${\Lambda }_b\to J/\psi K^0\Lambda$ reaction and a hidden-charm pentaquark state with strangeness
• Pentaquarks in high-energy colliding experiments: perspectives from HERA
• Limits for the central production of Theta^+ and Xi^{--} pentaquarks in 920 GeV pA collisions
• The structure of pentaquarks $P_c^{+}$ in the chiral quark model
• Antibaryons bound in nuclei
• Where are the missing members of the baryon antidecuplet?
• Pentaquark states in a chiral potential
• Study of the Baryon-Antibaryon Low-Mass Enhancements in Charmless Three-body Baryonic B Decays
• Possibility of the existence of charmed exotica
• Chiral soliton models, large N_c consistency and the Theta^+ exotic baryon
• Five-body calculation of resonance and scattering states of pentaquark system
• Observation of Two New N* Peaks in J/psi -> $pp{i}^{-}\bar{n}$ and $\bar{p}{\pi }^{+}n$ Decays
• Photon induced Lambda(1520) production and the role of the K^* exchange
• ${\Theta }^{+}$ in a chiral constituent quark model and its interpolating fields
• Heavy molecules and one-$\sigma /\omega$-exchange model
• QCD and the Strange Baryon Spectrum
• Charmed Exotics in Heavy Ion Collisions
• The Evidence for a Pentaquark Signal and Kinematic Reflections
• Exotic Tetraquark ud bar[s] bar[s] of J^P=0^+ in the QCD Sum Rule
• The Theta+ (1540) as a heptaquark with the overlap of a pion, a kaon and a nucleon
• Nucleon resonances $N(1875)$ and $N(2100)$ as strange partners of LHCb pentaquarks
• Search for the ${\Theta }^{+}$ pentaquark in the reactions $\gamma p\to {\bar{K}}^0{K}^{+}n$ and $\gamma p\to {\bar{K}}^0{K}^{0}p$
• Negative-parity baryon spectra in quenched anisotropic lattice QCD
• Search for the ${\bar{\Theta }}^{-}\to$ K${}^{-}$ $\bar{n}$ with PHENIX
• Search for Theta(1540)^+ in exclusive proton-induced reaction p+C(N) \to Theta^+ \bar{K}^0 + C(N) at the energy of 70 GeV
• Possible studies at the first stage of the NICA collider operation with polarized and unpolarized proton and deuteron beams
• Photoproduction of Theta baryon from the neutron
• Parity of ${\Theta }^{+}$(1540) from QCD sum rules
• Resonance Contributions to $\eta$ Photoproduction on Protons Found Using Dispersion Relations and an Isobar Model
• Lambda(1520,3/2^-) photoproduction reaction via gamma N -> K Lambda(1520)
• Penta-quark baryon in anisotropic lattice QCD
• Exotic Theta^+ baryon production induced by a photon and a pion
• Positive Parity Pentaquarks Pragmatically Predicted
• Pentaquark baryon production at the Relativistic Heavy Ion Collider
• A Method to Unambiguously Determine the Parity of the Theta+ Pentaquark
• Generalized mass formula for non-strange and hyper nuclei with SU(6) symmetry breaking
• Photoproduction of mesons off nuclei
• The pentaquark in K-plus-d total cross section data
• Heavy pentaquark spectroscopy in the diquark model
• Two-Hadron-Irreducible QCD Sum Rule for Pentaquark Baryon
• Partners of the Theta^+ in Large N_c QCD
• Search for Theta^+ and Xi^{--}_{3/2} pentaquarks in HERA-B
• Pentaquarks
• Cross sections for pentaquark baryon production from protons in reactions induced by hadrons and photons
• Attenuation of phi mesons in gamma A reactions
• High Statistics Search for the Theta+(1.54) Pentaquark State
• Systematics of Exotic Cascade Decays
• Multiquark states as di-hadronic molecules
• Study of exotic hadrons in S-wave scatterings induced by chiral interaction in the flavor symmetric limit
• Study of various few-body systems using Gaussian expansion method (GEM)
• Further evidence for formation of a narrow baryon resonance with positive strangeness in K+ collisions with Xe nuclei
• Resonating group method study of kaon-nucleon elastic scattering in the chiral SU(3) quark model
• Is the Theta+ a K pi N bound state?
• Surveying exotic pentaquarks with the typical $QQqq\bar{q}$ configuration
• Elliptic flow of resonances at RHIC: probing final state interactions and the structure of resonances
• Pentaquark Searches at CDF
• Pentaquark Magnetic Moments In Different Models
• Light-Front Approach for Heavy Pentaquark Transitions
• Stable Heavy Pentaquark States
• Production rates for hadrons, pentaquarks ${\Theta }^{+}$ and ${\Theta }^{\ast ++}$, and di-baryon $(\Omega \Omega {)}_{0^{+}}$ in relativistic heavy ion collisions by a quark combination model
• Spectroscopy of pentaquark states
• Numerical Study of the stability of Skyrmions in Bose-Einstein Condensates
• Pentaquark Theta+, constituent quark structures, and prediction of charmed Theta(c)^0 and bottomed Theta(b)^+
• Evidence for the B0->ppbarK*0 and B+->eta_cK*+ decays and Study of the Decay Dynamics of B Meson Decays into ppbarh Final States
• Search for Theta+ via pi- p --> K- X reaction near production threshold
• Exotic and nonexotic magnetic transitions in the context of the SELEX and GRAAL experiments
• Pentaquark Theta^+(1540) production in gamma N --> K Anti-K N
• Search for the ${\Theta }^{+}$ pentaquark via the ${\pi }^{-}p\to K^{-}X$ reaction at 1.92 GeV/$c$
• A study of pentaquark $\Theta$ state in the chiral SU(3) quark model
• A Naturally Narrow Positive Parity Theta^+
• The static tetraquark and pentaquark potentials
• Mixings of 4-quark components in light non-singlet scalar mesons in QCD sum rules
• Search for the Theta+ pentaquark in the gamma d -> Lambda n K+ reaction measured with CLAS
• Investigating the hidden-charm and hidden-bottom pentaquark resonances in scattering process
• Near-threshold photoproduction of $\Lambda (1520)$ from protons and deuterons
• Anti-charmed pentaquark ${\Theta }_c(3099)$ from QCD sum rules
• Lattice Study of Low-lying Nonet Scalar Mesons in Quenched Approximation
• The width of ${\Theta }^{+}$ for large $N_c$ in chiral quark soliton model
• Search for a narrow charmed baryonic state decaying to D^*+/- p^-/+ in ep collisions at HERA
• Search for the possible S=+1 Pentaquark states in Quenched Lattice QCD
• Exotic baryon multiplets at large number of colours
• The string-junction picture of multiquark states: an update
• The $J=3/2$ ${\Theta }^{\ast }$ partner to the $\Theta (1540)$ baryon
• The I^G J^{PC}=0^+ 1^{-+} Tetraquark State
• The roles of nucleon resonances in $\Lambda$(1520) photoproduciton off proton
• Search for the exotic ${\Xi }^{--}(1860)$ Resonance in 340GeV/c ${\Sigma }^{-}$-Nucleus Interactions
• Search for the pentaquark resonance signature in lattice QCD
• The family of strange multiquarks related to the Ds(2317) and Ds(2457)
• Strong Decay of $P_c(4380)$ Pentaquark in a Molecular Picture
• Bound State versus Collective Coordinate Approaches in Chiral Soliton Models and the Width of the ${\Theta }^{+}$ Pentaquark
• New study of the isotensor pi-pi interaction
• Study of $Thet{a}^{+}(udud\bar{s})$ in lattice QCD with exact chiral symmetry
• Magnetic moments of exotic pentaquarks in the chiral quark-soliton model
• Production of the exotic Theta baryon in relativistic nuclear collisions
• Pentaquark baryons in SU(3) quark model
• Why the Theta+ is seen in some experiments and not in others - a possible explanation
• Magnetic moments of the exotic pentaquark baryons within the chiral quark-soliton model
• Hadronic Spectrum - Multiquark States
• Hadron Physics at J-PARC
• Determining the ${\Theta }^{+}$ quantum numbers through the $K^{+}p\to {\pi }^{+}{K}^{+}n$ reaction
• Determination of the ${\Theta }^{+}$ parity from $\gamma n\to K^{-}{K}^{+}n$
• Light Baryon Resonances: Restrictions and Perspectives
• Extraction of the pion-nucleon sigma-term from the spectrum of exotic baryons
• Study the exotic ${\Theta }^{+}$ with polarized photon beams
• The narrow width of the Θ^+ - a possible explanation
• How to measure the parity of the ${\Theta }^{+}$ in $\vec{p}\vec{p}$ collisions
• Spectrum of the doubly charmed molecular pentaquarks in chiral effective field theory
• Improved study of a possible Theta+ production in the pp -> p K0 sigma+ reaction with the COSY-TOF spectrometer
• Octet, decuplet and antidecuplet magnetic moments in the chiral quark soliton model revisited
• On the Existence of Heavy Pentaquarks: The large Nc and Heavy Quark Limits and Beyond
• Color Non-Singlet Spectroscopy
• Coherent Theta^+ and Lambda(1520) photoproduction off the deuteron
• a0+(980)-resonance production in pp->dK+Kbar0 reactions close to threshold
• Baryon Exotics in the Quark Model, the Skyrme Model and QCD
• Production of exotic hadrons in $pp$ and nuclear collisions
• Pentaquark Symmetries, Selection Rules and another potentially Narrow State
• Exotic baryons and the large-Nc expansion
• A coupled-channel analysis for phi-photoproduction with Lambda(1520)
• Pentaquark spectrum in string dynamics
• Strange Pentaquark Hadrons in Statistical Hadronization
• Experimental Review on Pentaquarks
• Exotic hadrons in s-wave chiral dynamics
• Analysis of Theta^+ production in K^+Xe collisions
• Magnetic moments of antidecuplet pentaquarks
• Magnetic Moment of The ${\Theta }^{+}$ Pentaquark State
• Are There Diquarks in the Nucleon?
• Charged K* Photoproduction in a Regge model
• Light hadron and diquark spectroscopy in quenched QCD with overlap quarks on a large lattice
• Pentaquark and diquark-diquark clustering: a QCD sum rule approach
• Observation of a narrow structure in p(gamma,K_s)X via interference with phi-meson production
• QCD color interactions between two quarks
• Have Pentaquark States Been seen?
• The theta^+ baryon in soliton models: large Nc QCD and the validity of rigid-rotor quantization
• Reviewing the Evidence for Pentaquarks
• Theta^+ baryon production in KN and NN reactions
• Lattice study of K pi scattering in I = 3/2 and 1/2
• A novel interpretation of the "${\Theta }^{+}(1540)$ pentaquark" peak
• Properties of baryon anti-decuplet
• Evidence for the J^p=1/2^+ narrow state at 1650 MeV in the photoproduction of KLambda
• New Narrow Nucleon N*(1685)
• The sigma-term form factor of the nucleon in the large-Nc limit
• Heavy Pentaquarks
• Search for an exotic S=-2, Q=-2 baryon resonance at a mass near 1862 MeV in quasi-real photoproduction
• Search for pentaquarks decaying to Xi-pi in deep inelastic scattering at HERA
• Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam
• Exotic states of matter in heavy meson decays
• Pentaquark Searches in Electron-Positron Annihilations and Two-Photon Collisions at LEP
• CKM Results From CLEO
• Pentaquark ${\Theta }^{+}$ production from the reaction $\gamma p\to {\pi }^{+}{K}^{-}{\Theta }^{+}$
• Suppression of Theta^+(J^P=3/2^(+,-)) photoproduction from the proton
• $\Lambda (1520)$ and $\Sigma (1385)$ in the nuclear medium
• Coupling of \bar K*N to the Lambda(1520)
• SPring-8 LEPS2 beamline: A facility to produce a multi-GeV photon beam via laser Compton scattering
• Dynamical study of the pentaquark antidecuplet
• The Narrow Theta(1543)--A QCD Dilemma: Tube or Not Tube?
• Double polarization asymmetry as a possible filter for ${\Theta }^{+}$'s parity
• A Diquark Chiral Effective Theory and Exotic Baryons
• Goldberger-Treiman constraint criteria for hyperon coupling constants
• Instanton induced quark dynamics and the pentaquark
• Pentaquark searches at FOCUS
• The 27-plet Baryons from Chiral Soliton Models
• Swimming with Quarks
• Width of the J^P=1/2^+ pentaquark in the quark-diquark model
• Heavy flavor pentaquarks with four heavy quarks
• Pentaquarks: Review on Models and Solitonic Calculations of Antidecuplet Magnetic Moments
• Exotic Baryons and Monopole Excitations in a Chiral Soliton Model
• Pentaquark decay is suppressed by chirality conservation
• Rescattering in Meson Photoproduction off Few Body Systems
• On the hidden charm pentaquark-s in ${\Lambda }_b\to J/\psi K^{-}p$ decay
• Three-body hadronic structure of low-lying $1/2^{+}$ $\Sigma$ and $\Lambda$ resonances
• Decay of Theta+ in a quark model
• Present status on experimental search for pentaquarks
• 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
• Search for a strongly decaying neutral charmed pentaquark
• Spin 3/2 Penta-quarks in anisotropic lattice QCD
• Pentaquark Decay Width in QCD Sum Rules
• Prediction of Narrow $J^{\pi }=1/2^{+}$, $3/2^{+}$, and $3/2^{-}$ states of ${\Theta }_{+}$ in a Quark model with Antisymmetrized Molecular Dynamics
• Chiral doublers of heavy-light baryons
• 1/N Expansion for Exotic Baryons
• Prospects for Pentaquark Production at Meson Factories
• Stability of the pentaquark in a naive string model
• Pentaquark ${\Theta }^{\ast }$ States in {27} Baryon Multiplet from Chiral Soliton Model
• Meson-Baryon Scattering in QCD_2 for any Coupling
• Comment on the ${\Theta }^{+}$-production at high energy
• QCD sum rules for the anti-charmed pentaquark
• History of exotic Meson (4-quark) and Baryon (5-quark) States
• High-resolution search for the ${\Theta }^{+}$ pentaquark via a pion-induced reaction at J-PARC
• Formation of a narrow baryon resonance with positive strangeness in K^+ collisions with Xe nuclei
• Exotic Hadrons at LHCb
• A lattice study of the pentaquark states
• Spin observables and the determination of the parity of ${\Theta }^{+}$ in photoproduction reactions
• Pentaquarks: review of the experimental evidence
• "Super-radiance" and the width of exotic baryons
• Colour Fields of the Static Pentaquark System Computed in SU(3) Lattice QCD
• Negative parity pentaquarks in large Nc QCD and quark model
• Study of the $\gamma d\to K^{+}{K}^{-}np$ reaction and an alternative explanation for the "${\Theta }^{+}(1540)$ pentaquark" peak
• The effect of the in-medium ${\Theta }^{+}$ pentaquark on the kaon optical potential
• Manifestly exotic pentaquarks with a single heavy quark
• KKbar photoproduction from protons
• Mesonic Content of the Nucleon and the Roper Resonance
• Triquark correlations and pentaquarks in a QCD sum rule approach
• Negative-Parity Heavy Pentaquark States in 1/N_c
• Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model
• Isospin Mixing of Narrow Pentaquark States
• Baryon resonances in large $N_c$ QCD
• Search for a pentaquark decaying to p K_S^0
• A comprehensive search for the Θ^+ pentaquark on the lattice
• A QCD Sum Rule Study of ${\Theta }^{+}$ in Nuclear Matter
• Light-Front Approach for Pentaquark Strong Decays
• A Phenomenological Lagrangian Approach to Two Kaon Photoproduction and Pentaquark Searches
• Even Parity $\Theta$-Pentaquark and Stable Strange Nuclear Matter
• Probing the partonic structure of pentaquarks in hard electroproduction
• eta photoproduction and N* resonances
• Decay modes of the excited pseudoscalar glueball
• Photoproduction of ${\Theta }^{+}$ and other pentaquark states
• Spectroscopy of ${\mathrm{q}}^3{\bar{\mathrm{q}}}^3$-States in Quark Model and Baryon-Antibaryon Enhancements
• Pentaquark state in pole-dominated QCD sum rules
• Lowest-lying Tetra-Quark Hadrons in Anisotropic Lattice QCD
• Pentaquarks: Status and Perspectives for Lattice Calculations
• 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
• Investigating the parity of the exotic Theta^+ baryon from the kaon photoproduction
• Study on possible molecular states composed of ${\Lambda }_c\bar{D}$ (${\Lambda }_{b}B$) and ${\Sigma }_c\bar{D}$ (${\Sigma }_{b}B$) within the Bethe-Salpeter framework
• Axial vector tetraquark with S=+2
• Scalar and Vector 4Q Systems in Anisotropic Lattice QCD
• Thermal effects on quark-gluon mixed condensate g<\bar{q} σG q> from lattice QCD
• ${\Theta }^{+}$ Hypernuclei
• An Experimental Review of the ${\Theta }^{+}$ Pentaquark
• Four-quark structure of the excited states of heavy mesons
• Theta+ formation in inclusive gamma D -> pK- X
• Quark spin content of the proton, hyperon semileptonic decays, and the decay width of the ${\Theta }^{+}$ pentaquark
• Photoproduction of the Theta^+ resonance on the nucleon in a Regge model
• Soft-core meson-baryon interactions. I. One-hadron-exchange potentials
• A study of the $KN$-$K^{\ast }N$ coupled systems
• Hidden-strange molecular states and the $N\varphi$ bound state via a QCD van der Waals force
• Pentaquark as a NK^* bound state with TJ^P=0{3/2}^-
• Further study on 5q configuration states in the chiral SU(3) quark model
• Quarks, diquarks and QCD mixing in the $N^{\ast }$ resonance spectrum
• First observation of $\psi (2S)\to p\bar{n}{\pi }^{-}+c.c.$
• Search for the pentaquark candidate ${\Theta }^{+}$(1540) in the hyperon beam experiment WA89
• Pentaquark, cusp and rescattering in single kaon photoproduction off deuterium
• Spin-3/2 pentaquark in the QCD sum rule
• A Comparative Study of Pentaquark Interpolating Currents
• Comparative Regge analysis of $\Lambda ,{\Sigma }^0,\Lambda (1520)$ and ${\Theta }^{+}$ production in $\gamma p$, $\pi p$ and $pp$ reactions
• Pentaquark ${\Theta }^{+}$ in nuclear matter and ${\Theta }^{+}$ hypernuclei
• Spin asymmetries in gamma + N --> K*bar + Theta^+
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ as diquark-diquark-antiquark state with QCD sum rules
• Search for the Charmed Pentaquark Candidate Theta_c(3100) in e+e- Annihilations at sqrt(s)=10.58 GeV
• ${\Theta }^{+}$ hypernuclei in relativistic mean field model
• Pentaquark baryon production from photon-neuteron reactions
• Decay constants of the pseudoscalar charmonium and bottomonium
• High Energy Photoproduction
• Phenomenology of spin 3/2 baryons with pentaquarks
• To see the exotic Theta^+ baryon from interference
• Evidence of Pentaquark States from K+ N Scattering Data?
• Threshold production of the ${\Theta }^{+}$ in a polarized proton reaction
• Search for Exotic Baryons in 800 GeV pp (rtarrow) pXiPiX
• The volume dependence of the long-range two-body potentials in various color channels by lattice QCD
• Thomas-Fermi Statistical Models of Finite Quark Matter
• On a possible tetraquark cousin of the Theta^+
• Two-meson cloud contribution to the baryon antidecuplet binding
• Interactions of multi-quark states in the chromodielectric model
• Pentaquark as Kaon-Nucleon Resonance
• Soft-core meson-baryon interactions. II. $\pi N$ and $K^{+}N$ scattering
• Searching for exotic states in the $N\pi K$ system
• A possibility to determine the P-parity of the ${\Theta }^{+}$ pentaquark in the $pn\to {\Lambda }^0{\Theta }^{+}$ reaction
• Exotic hadrons and hadron-hadron interactions in heavy ion collisions
• Photoproduction of pentaquark cascades from nucleons
• Production of Theta+ in gamma + D -> Lambda + Theta+ and gamma + D -> Sigma + Theta+ reactions
• Understanding penta quark with various quark models
• Higher Charmonium
• Search for Higher Flavor Multiplets in Partial Wave Analyses
• Decay width of the pentaquark state ${\Theta }^{+}(1540)$ with QCD sum rules
• Determining Pentaquark Quantum Numbers from Strong Decays
• Production of Theta(1540) and Xi Pentaquark States in Proton-Proton Interactions
• A Search for Sigma^0_5, N^0_5 and Theta^++ Pentaquark States
• Resonances, and mechanisms of Theta-production
• Are the anti-charmed and bottomed pentaquarks molecular heptaquarks?
• The discovery and properties of pentaquarks
• Pentaquarks in a relativistic quark model and nature of Theta-states
• Today's View on Strangeness
• Modelling Pentaquark and Heptaquark States
• Absence of evidence for pentaquarks on the lattice
• Effects of Instanton Induced Interaction on the Pentaquarks
• A note on Charmed and Bottomed Pentaquark Production by Fragmentation
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ with QCD sum rules
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ with light-cone QCD sum rules
• Role of Large Gluonic Excitation Energy for Narrow Width of Penta-Quark Baryons in QCD String Theory
• Photoproduction of eta and etaprime mesons on the nucleon
• Anti-charmed pentaquark from B decays
• Recent Results on Searches for Pentaquark States from STAR at RHIC
• A Mass Inequality for the ${\Xi }^{\ast }$ and ${\Theta }^{+}$ Pentaquarks
• EPECUR setup for the search of narrow baryon resonances in the pion-proton scattering
• Broken SU(3) antidecuplet for ${\Theta }^{+}$ and ${\Xi }_{3/2}$
• Decay of the pseudoscalar glueball and its first excited state into scalar and pseudoscalar mesons and their first excited states
• The lattice QCD simulation of the quark-gluon mixed condensate g<\bar{q} σG q> at finite temperature and the phase transition of QCD
• Phenomenological study of two-meson couplings of Theta+
• Heavy Quark Analogues of the Theta and Their Excitations
• On Some properties of Di-hadronic states
• QCD Exotics
• Regge Trajectories of Exotic Hadrons in the Flux Tube Model
• A schematic model for QCD. III : Hadronic states
• On strange SU(3) partners of Theta+
• Doubly charmed hexaquarks in the diquark picture
• Production of Pentaquark States in pp Collisions within the Microcanonical Ensemble
• Heavy and Light Pentaquark Chiral Lagrangian
• Variational Monte Carlo study of pentaquark states
• Chiral perturbation theory for pentaquark baryons and its applications
• Hadronic Decays Involving Heavy Pentaquarks
• Some aspects of ${\Theta }^{+}$ parity determination in the reaction $\gamma N\to {\Theta }^{+}\bar{K}\to NK\bar{K}$
• The anti-decuplet candidate Xi--(1862) as a heptaquark with the overlap of two anti-kaons and a nucleon
• Search for Exotic S=-2 Baryons in proton-antiproton Collisions at sqrt(s) = 1.96 TeV
• Study of Inclusive Strange-Baryon Production and Search for Pentaquarks in Two-Photon Collisions at LEP
• The collective quantization of three-flavored Skyrmions revisited
• Pentaquarks $uudd\bar{q}$ with One Color Sextet Diquark
• Interaction and Identification of the Meson-Baryon molecules
• K+N scattering data and exotic Z+ resonances
• Mixing of Pentaquark and Molecular States
• Prospects for Pentaquark Searches in $e^{+}{e}^{-}$ Annihilations and $\gamma \gamma$ Collisions
• Phenomenological constraints on the Jaffe-Wilczek model of pentaquarks
• Spin 3/2 Pentaquarks
• Exotic particle searches with STAR at RHIC
• Study of a possible S=+1 dynamically generated baryonic resonance
• Can low-lying Roper states be explained as antidecuplet members?
• Search for narrow resonances in $\pi p$ elastic scattering from the EPECUR experiment
• Search for a promising tetraquark candidate $X(ud\bar{s}\bar{s})$ in $pn\to \Lambda \Lambda X$
• Experimental Outlook for the Pentaquark
• A Personal Journey Through Hadronic Exotica
• Spectral-fluctuations test of the quark-model baryon spectrum
• Heptaquarks with two heavy antiquarks in a simple chromomagnetic model
• Low-lying ud anti-s anti-s configurations in a non-relativistic constituent quark model
• Possible quantum numbers of the pentaquark Θ^+(1540) in QCD sum rules
• Moments of inertia, nucleon axial-vector coupling, the {\bf 8}, {\bf 10}, $\overline{10}$ and ${27}_{3/2}$ mass spectrums and the higher SU(3)_f representation mass splittings in the Skyrme model
• Exotic Baryons in Two-Dimensional QCD
• Photoproduction and Radiative Decay of Spin 1/2 and 3/2 Pentaquarks
• Pentaquarks in the Chiral Symmetry Limit
• Production of the pentaquark ${\Theta }^{+}$ in $np$ scattering
• Theta++ from QCD sum rule
• Feasibility study of the $K^{+}d\to K^{0}pp$ reaction for the "${\Theta }^{+}$" pentaquark
• Search for the exotic ${\Theta }^{+}$ resonance in the NOMAD experiment
• KN scattering amplitude revisited in a chiral unitary approach and a possible broad resonance in S=+1 channel
• Photoproduction of Pentaquark in Feynman and Regge Theories
• Spin-3/2 Pentaquark in QCD Sum Rules
• Parity of Anti-Decuplet Baryons Revisited from Chiral Soliton Models
• Diquarks, Pentaquarks and Dibaryons
• An introduction to the quark model
• A Selection Rule for Multiquark Decays
• Mass splittings of the baryon decuplet and antidecuplet with the second-order flavor symmetry breakings within a chiral soliton model
• The Experimental Search for Pentaquark
• The Chiral Soliton Model for Arbitrary Colors and Flavors
• The quantization of exotic states in SU(3) soliton models: A solvable quantum mechanical analog
• Light Scalar Decay in Diquark Chiral Effective Theory
• Penta-quark in Anisotropic Lattice QCD
• Coalescence model for Theta_c pentaquark formation
• Stable Pentaquarks from Strange Chiral Multiplets
• Systematic study of pentaquark states: $qqq-q\bar{q}$ configuration
• Eta photoproduction on the neutron at GRAAL: Measurement of the differential cross section
• Kaon-Soliton Bound State Approach to the Pentaquark States
• Relativistic five-quark equations and u, d- pentaquark spectroscopy
• Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP
• SU(3) constraints on cryptoexotic pentaquarks
• Investigate the pentaquark resonance in the $NK$ system
• Sigma(1385) Results and Status of the Theta^{+} in STAR
• Spin-statistics-quantum number connection and supersymmetry
• Search for a Theta++ Pentaquark State
• The exotic baryon mass spectrum and the decuplet-octet and antidecuplet-octet mass difference in the Skyrme model
• Positive parity pentaquark towers in large Nc QCD
• Calculating loops without loop calculations: NLO computation of pentaquark correlators
• Comment on The Evidence for a Pentaquark and Kinematic Reflections
• Upper limits for the photoproduction cross section for the Phi--(1860) pentaquark state off the deuteron
• Evidence of the non-strange partner of pentaquark from the elementary $K^{+}\Lambda$ photoproduction
• Possibility of determinig the parity of the pentaquark ${\Theta }^{+}$ from photoproduction near threshold
• New Particles from Belle
• Search for a narrow baryonic state decaying to $p{K}_S^0$ and $\bar{p}{K}_S^0$ in deep inelastic scattering at HERA
• BES Results on J/psi decays and Charmonium Transitions
• Production of ${\Theta }^{+}$ Hypernuclei with the $(K^{+},{\pi }^{+})$ reaction
• Small size pentaquark width: calculation in QCD sum rules
• First observation of $\gamma \gamma \to p\bar{p}{K}^{+}{K}^{-}$ and search for exotic baryons in $pK$ systems
• $K^{+}$-nucleus elastic scattering revisited from perspective of partial restoration of chiral symmetry
• Electric properties of the baryon anti-decuplet in the SU(3) chiral quark-soliton model
• Polarization Observables in $\gamma N\to K\bar{K}N$
• S-wave kaon-nucleon potentials with all-to-all propagators in the HAL QCD method
• SU(6), Triquark states, and the pentaquark
• Strangeness and heavy flavor at RHIC: Recent results from PHENIX
• Relativistic five-quark equations and negative parity pentaquarks
• Structure and reactions of pentaquark baryons
• Lower Excitation Spectrum of the Nucleon and Delta in a Relativistic Chiral Quark Model
• Tetraquark and Pentaquark Systems in Lattice QCD
• The Possible $J^{PC}{I}^G=2^{++}{2}^{+}$ State X(1600)
• The 35-plet Baryons from Chiral Soliton Models
• The mysteries of fermions
• Justifying the exotic Theta+ pentaquark
• Non-Abelian dynamics and heavy multiquarks, Steiner-tree confinement in hadron spectroscopy
• Principles for a unified picture of fermions
• Testing the bootstrap constraints in the strange sector
• Hadrons and Few-Body Physics
• Exploration of charmed pentaquarks
• Pentaquark ${\Theta }^{+}$ search at HERMES
• Faddeev calculation of pentaquark ${\Theta }^{+}$ in the Nambu-Jona-Lasinio model-based diquark picture
• What Can we Learn about $\Theta$ Baryon from Unified Picture for Hadron Spectra
• Structure and decay width of Θ^+ in a one-gluon exchange model
• The Skyrme model predictions for the ${27}_{J=3/2}$ mass spectrum and the ${27}_{3/2}$-$\overline{10}$ mass splittings
• Effective mass and decay of ${\Theta }^{+}$ in nuclear matter in quark-meson coupling model
• Pentaquarks in string dynamics
• Strange meson-nucleon states in the quark potential model
• Status of Pentaquark Search at Jlab
• Pentaquarks in the Jaffe-Wilczek approximation
• Diomega production in relativistic heavy ion collisions
• Structure of light and heavy pentaquarks
• Beyond CP violation: hadronic physics at BaBar
• Vector and axial-vector structures of the Theta^+
• The pentaquark ${\Theta }^{+}(1540)$ in the string model
• On the K^+D Interaction at Low Energies
• Holographic Penta and Hepta Quark State in Confining Gauge Theories
• Lattice study of scattering phase shifts for $D{D}^{\ast }$ and $B{B}^{\ast }$ systems using twisted boundary conditions: Search for bound state formation
• Optical Potential Approach to $K^{+}d$ Scattering at Low Energies
• Search for the $N$(1685) in $\eta \pi$-Photoproduction
• Determination of the parity of the pentaquark baryons : Theta^+ and Xi_5
• Multimodal Fragmentation of All-Heavy Pentaquarks: Uncertainty-Aware Predictions for Hadron Colliders
• Prediction of the masses and decay processes of strange, charmed and bottomed pentaquarks from the linear molecular crypto-heptaquark model
• Observation of pentaquark states and perspectives of further studies
• Quarkonia & Pentaquarks
• Some (further) Comments on the Theta(1540) Pentaquark
• In-medium Properties of ${\Theta }^{+}$ as a K$\pi$N structure in Relativistic Mean Field Theory
• Pentaquark Theta^+ production via gamma N ->K^*bar Theta^+(3/2^(+-))
• Pentaquark Masses in Chiral Perturbation Theory
• Search for an exotic S=-2, Q=-2 baryon resonance in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV
• Relativistic five-quark equations and exotic baryons with isospin I=5/2
• Possible production of exotic baryonia in relativistic heavy-ion collisions
• Search for exotic baryons in double radiative capture on pionic hydrogen
• Dynamics of Multiquark Systems: Mass, Width and Exotics
• Photoproduction of Pentaquark ${\Theta }^{+}$ and Chiral Symmetry Restoration in Hot and Dense Medium
• $P$-parity of charm and strange particles in electroproduction processes, in collinear regime
• Quark-model search for compact $c\bar{c}uds$ pentaquark states
• The Nakano-Nishijima-Gell-Mann Formula From Discrete Galois Fields
• Baryon number transfer could delay Quark-Hadron transition in cosmology
• Photoproduction of the Theta^+ and its vector and axial-vector structure
• Resonance radiative decays as a tool for its parity determination
• Effect of Chiral Symmetry Restoration on Pentaquark ${\Theta }^{+}$ Mass and Width at Finite Temperature and Density
• $\Lambda (1405)$ and $\bar{\Lambda }(1405)$ in $J/\psi$ four-body decays
• Constraints on narrow exotic states from K+p and K0_Lp scattering data
• Search for the Theta^+(1540) in lattice QCD
• The 27-plet baryons with spin 3/2 under SU(3) symmetry
• P-wave Pentaquark and its Decay in the Quark Model with Instanton Induced Interaction
• Stability and structure of quark matter in a molecular dynamics framework
• Pentaquarks in the medium in the quark-meson coupling model
• Reanalysis the pentaquark ${\Theta }^{+}(1540)$ in the framework of QCD sum rules approach with direct instantons
• Photoproduction of Theta^+(1540,1/2^+) reexamined with new theoretical information
• Stability of the rotating SU(3) Skyrmion
• Spin correlations in the reaction "pi \vec D --> \vecΣΘ^+" and the parity of Theta^+
• Relativistic Calculation of the Width of the Theta (1540) Pentaquark
• Decay Probability Ratio of Pentaquark Theta^+ State
• Quark Model and multiquark system
• Exotic hadrons from dynamical clustering of quarks in ultrarelativistic heavy ion collisions
• Spectroscopy of Pentaquark Baryons
• Representation Mixing and Exotic Baryons in the Skyrme Model
• Skyrmions and pentaquarks in the quark-hadron continuity perspective
• The Skyrme Model Revisited: An Effective Theory Approach and Application to the Pentaquarks
• Diquarks and pentaquark nature
• Are the Theta+(1540), Xi--(1860) and D*-p(3100) Pentaquarks or Heptaquarks?
• Width of Theta - pentaquarks in relativistic quark model
• Experimental search for radiative decays of the pentaquark baryon Θ^+(1540)
• Statistical hadronization phenomenology in heavy ion collisions at SPS and RHIC energies
• Kinematic selection criteria in a new resonance searches: Application to pentaquark states
• Exclusive production of pentaquarks in the scaling regime
• Two-meson cloud contribution to the baryon antidecuplet self-energy
• Molecular pentaquarks composed of a ground-state octet baryon and a $P-$wave anticharmed meson
• Chiral Solitons
• New tests for experiments producing pentaquarks
• Heavy-flavor multimodal fragmentation to $S$-wave pentacharms at next-generation hadron colliders
• Heavy Pentaquarks in the Diquark Model and the Large N_c Expansion
• ${\Theta }^{+}$-pentaquark parity from associative baryon production in $\pi D$ collisions, ${\pi }^{\pm }+D\to {\Theta }^{+}+{\Sigma }^{\pm }$
• Revisiting the pentaquark episode for lattice QCD
• Pentaquarks: Theory overview, and some more about quark models
• Partial wave analysis of $K^{+}N$ scattering and the possibility of pentaquark ${\Theta }^{+}(1540)$
• Penta-Quark Anti-Decuplet in Anisotropic Lattice QCD
• Asymptotic directional structure of radiation for fields of algebraic type D
• The Pentaquarks in the Linear Molecular Heptaquark Model
• Quantization of the chiral soliton in medium
• Light Front Approach for Strong and Weak Decays of Pentaquarks
• Review of Recent Jlab Results
• Bound states of ${\Theta }^{+}$ in nuclei
• The topological approach to baryon-antibaryon and meson production in rapidly expanding Bjorken rods
• Low-lying $s=+1$ Pentaquark states in the Inherent Nodal Structure Analysis
• Angular distribution and azimuthal asymmetry for pentaquark production in proton-proton collisions
• Chiral Soliton Model vs Pentaquark Structure for Θ(1540)
• The Nucleon and Delta Baryons in the Unified Picture for Hadron Spectra