Bayesian Inference of the Resonance Content of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>γ</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mi>Λ</mml:mi></mml:math>

Cruz, Lesley De; Vrancx, Tom; Vancraeyveld, Pieter; Ryckebusch, Jan

doi:10.1103/physrevlett.108.182002

Cited by 59 publications

(92 citation statements)

References 53 publications

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“…We have also compared our resonance configuration with that used by the Ghent group [17] and found that our configuration is consistent up to spin 5/2 resonances. The omission of spin 5/2 resonances in our model was discussed in Ref.…”

mentioning

confidence: 99%

Coupling strength of theN*(1535)S11to theK+Λc

Mart

2013

Phys. Rev. C

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The N * (1535)S 11 coupling strength to the K + Λ channel, g N * (1535)ΛK + , is extracted from the latest and largest K + Λ photoproduction database by using an isobar model. It is found that the coupling is small. In term of the coupling ratio the best result is R ≡ |g N * (1535)ΛK + /g N * (1535)ηp | = 0.460 ± 0.172, much smaller than that obtained from the isobar analysis of the J/ψ decays, i.e., 1.3 ± 0.3, but consistent with the results of the unitary chiral approach of the same decay processes as well as the partial wave analysis of kaon photoproduction, i.e., R = 0.5 ∼ 0.7. The different results of R found here and in literature to date suggest that a more solid definition of the coupling constant, especially in the case of N * (1535)S 11 state, is urgently required, before a fair comparison can be made.

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confidence: 99%

Coupling strength of theN*(1535)S11to theK+Λc

Mart

2013

Phys. Rev. C

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“…The interest in this state has increased since it was shown in [32] that this state was an ideal candidate to explain the peak around 1920 MeV observed in the γp → K + Λ reaction. It has been quite rewarding to see that in a recent work using Bayesian statistics to determine the most probable combinations of resonances needed to describe the γp → K + Λ reaction [33,34], a N * , J P = 1/2 + state with mass around 1900 MeV is needed to best explain the data.…”

Section: Three Body Systems Involving Kaonsmentioning

confidence: 99%

“…Yet, the atoms studied in these former works correspond to orbits with l equal or bigger than one, and one can rightly ask where are the states with l = 0. The answer to this problem was given in [3] where it was found that, based on potentials derived from chiral unitary theory [4], those states are deeply bound, by [30][31][32][33][34][35][36][37][38][39][40] MeV, but the width is about 100 MeV, which sets clear limits to their experimental observability. One must also quote that there are different claims, with larger bindings and narrower widths, based on phenomenological potentials fitted to data of kaonic atoms [1].…”

Section: Introductionmentioning

confidence: 99%

Kaonic systems

Oset¹

2012

EPJ Web of Conferences

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Abstract. I make a short review of the situation of the kaonic systems, with novel information supporting the two Λ(1405) states from the K − d → nπΣ reaction. A review is made of theKNN system with recent calculations converging to smaller bindings and larger widths. Novel systems involving two kaons and one nucleon or three kaons are also reported and finally a short discussion is made of the analogous state DNN for which recent studies find a large binding and a small width.

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“…In a new version of the RPR model (referred to as RPR-2011) [37], several changes relative to the previous model version (referred to as RPR-2007) [27] Neither version of the model has been constrained by fits to any of the electroproduction data.…”

Section: Regge Plus Resonance Modelmentioning

confidence: 99%

Separated structure functions for exclusiveK+ΛandK+Σ0electroproduction at 5.5 GeV measured with CLAS

Carman¹,

Park²,

Raue³

et al. 2013

Phys. Rev. C

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We report measurements of the exclusive electroproduction of K + Λ and K + Σ 0 final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σ U , σ LT , σ T T , and σ LT ′ were extracted from the Φ-dependent differential cross sections acquired with a longitudinally polarized 5.499 GeV electron beam. The data span a broad range of momentum transfers Q 2 from 1.4 to 3.9 GeV 2 , invariant energy W from threshold to 2.6 GeV, and nearly the full center-of-mass angular range of the kaon. The separated structure functions provide an unprecedented data sample, which in conjunction with other meson photo-and electroproduction data, will help to constrain the higher-level analyses being performed to search for missing baryon resonances.

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Bayesian Inference of the Resonance Content ofp(γ,K+)Λ

Cited by 59 publications

References 53 publications

Coupling strength of theN*(1535)S11to theK+Λc

Coupling strength of theN*(1535)S11to theK+Λc

Kaonic systems

Separated structure functions for exclusiveK+ΛandK+Σ0electroproduction at 5.5 GeV measured with CLAS

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