Erratum to: “Baryonic resonances from baryon decuplet-meson octet interaction” [Nucl. Phys. A 750 (2005) 294]

Sarkar, Sourav; Oset, E.; Vacas, M. J. Vicente

doi:10.1016/j.nuclphysa.2006.09.019

Cited by 152 publications

(308 citation statements)

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“…where the semi-local duality hypothesis 1 (17). The second line emerges essentially from the OPE and "measures" howm is determined by condensates.…”

Section: Introductionmentioning

confidence: 99%

“…For the physics of resonances the connection is even more loose. There are recent approaches which explain some hadronic resonances as dynamically generated from chiral dynamics [15][16][17][18][19][20][21], but again this primarily points towards an intimate connection between hadron physics and chiral symmetry breaking and not so much chiral restoration. As suggested, e.g., in [2,22] the link to chiral restoration might be indirect: The in-medium broadening could be understood as a step towards deconfinement.…”

Section: Introductionmentioning

confidence: 99%

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The impact of chirally odd condensates on the rho meson

et al. 2012

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Based on QCD sum rules we explore the consequences of a pure chiral restoration scenario for the ρ meson, where all chiral symmetry breaking condensates are dropped whereas the chirally symmetric condensates remain at their vacuum values. This pure chiral restoration scenario causes the drop of the ρ spectral moment by about 120 MeV. The complementarity of mass shift and broadening is discussed. A simple parametrization of the ρ spectral function leads to a width of about 600 MeV if no shift of the peak position is assumed.

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“…where the semi-local duality hypothesis 1 (17). The second line emerges essentially from the OPE and "measures" howm is determined by condensates.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The impact of chirally odd condensates on the rho meson

et al. 2012

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“…I will not expose here the formalism which can be found in all these references ( a lecture type approach to the problem can bee seen in [19]). Instead, I will briefly expose the formalism for the interaction of the octet of pseudoscalar mesons with the decuplet of baryons, which has received far less attention [20,21,14]. In this approach one of the resonances that appears dynamically generated is the ∆(1700) which will play an important role in some of the reactions which I report here.…”

Section: Baryon Meson Interactionmentioning

confidence: 99%

“…The couplings to these channels are evaluated in [21]. If we study the γp → π 0 ηp or the γp → π 0 K 0 Σ + reactions it was found in [28] and [29] that the mechanisms of ∆(1700) excitation with posterior decay of the ∆(1700) into η∆ and K 0 Σ(1385) were dominant in these reactions at low energies.…”

Section: Baryon Meson Interactionmentioning

confidence: 99%

Photo- and electro-production of mesons on nucleons and nuclei

Oset

Döring

Strottman

et al. 2008

Progress in Particle and Nuclear Physics

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In these lectures I will show some results obtained with the chiral unitary approach applied to the photo and electroproduction of mesons. The results for photoproduction of ηπ 0 p and K 0 π 0 Σ + , together with related reactions will be shown, having with common denominator the excitation of the ∆(1700) resonance which is one of those dynamically generated in the chiral unitary approach. Then I will show results obtained for the e + e − → φf 0 (980) reaction which reproduce the bulk of the data except for a pronounced peak, giving support to a new mesonic resonance, X(2175). Results will also be shown for the electromagnetic form factors of the N * (1535) resonance, also dynamically generated in this approach. Finally, I will show some results on the photoproduction of the ω in nuclei, showing that present experimental results claiming a shift of the ω mass in the medium are tied to a particular choice of background and are not conclusive. On the other hand, the same experimental results show unambiguously a huge increase of the ω width in the nuclear medium.

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“…The pentaquark with 1 3 2 − has also been found to exist as a resonant state in the ∆K channel [32] from the chiral unitary approach. This state is generated due to an attractive interaction in that channel existing in the lowest order chiral Lagrangian.…”

Section: From the Region Of The Curve Weakly Dependent Of M M I=0mentioning

confidence: 99%

Spin-3/2pentaquark in the QCD sum rule approach

et al. 2005

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We study IJ P = 0 3 2 ± and 1 3 2 ± pentaquark states with S = +1 in the QCD sum rule approach.The QCD sum rule for positive parity states and that for negative parity are independently derived.The sum rule suggests that there exist the 0 3 2 − and the 1 3 2 − states. These states may be observed as extremely narrow peaks since they can be much below the S-wave threshold and since the only allowed decay channels are N K in D-wave, whose centrifugal barriers are so large that the widths are strongly suppressed. The 0 3 2 − state may be assigned to the observed Θ + (1540) and the 1 3 2 − state can be a candidate for Θ ++ .

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Erratum to: “Baryonic resonances from baryon decuplet-meson octet interaction” [Nucl. Phys. A 750 (2005) 294]

Cited by 152 publications

References 0 publications

The impact of chirally odd condensates on the rho meson

The impact of chirally odd condensates on the rho meson

Photo- and electro-production of mesons on nucleons and nuclei

Spin-3/2pentaquark in the QCD sum rule approach

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