Unitary coupled channel analysis of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Λ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1520</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math>resonance

Roca, L.; Sarkar, Sourav; Magas, V. K.; Oset, E.

doi:10.1103/physrevc.73.045208

Cited by 74 publications

(128 citation statements)

References 53 publications

Supporting

Mentioning

124

Contrasting

Order By: Relevance

“…Once the free parameters are determined by fitting to the experimental data of these reactions, the predictivity of the model can be tested for different data sets as has been done in Ref. [11] for the reactions K − p → π 0 π 0 Λ, K − p → π + π − Λ, γp → K + K − p, and π − p → K 0 K − p, finding in all cases good agreement with data.…”

Section: Introductionmentioning

confidence: 66%

“…On the other hand, this freedom allows for a good reproduction of d-wave experimental data for KN → KN and KN → πΣ via the Λ * (1520), see Ref. [10,11]. Once the free parameters are determined by fitting to the experimental data of these reactions, the predictivity of the model can be tested for different data sets as has been done in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…For the present study we include the d-wave channels following Ref. [11]. In a previous work [10] the Λ * (1520) resonance was studied within a coupled channel formalism including the πΣ * , KΞ * in s-wave and theKN and πΣ in d-waves leading to a good reproduction of the pole position of the Λ * (1520) of the scattering amplitudes.…”

Section: B Introduction Of D-wave Channelsmentioning

confidence: 99%

“…[10] some matrix elements in the kernel of the Bethe-Salpeter equation were not considered. Therefore, a subsequent work [11] aimed at a more precise description of the physical processes involving the Λ * (1520) resonance. Hence, other possible tree level transition potentials in d-wave are introduced here following Ref.…”

Section: B Introduction Of D-wave Channelsmentioning

confidence: 99%

See 3 more Smart Citations

Radiative decay of theΛ*(1520)

2006

Self Cite

View full text Add to dashboard Cite

A recently developed non-perturbative chiral approach to dynamically generate the 3/2 − baryon resonances has been extended to investigate the radiative decays Λ * (1520) → γΛ(1116) and Λ * (1520) → γΣ 0 (1193). We show that the Λ * (1520) decay into γΛ is an ideal test for the need of extra components of the resonance beyond those provided by the chiral approach since the largest meson-baryon components give no contribution to this decay. The case is different for γΣ decay where the theory agrees with experiment, though the large uncertainties of these data call for more precise measurements.

show abstract

Section: Introductionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: B Introduction Of D-wave Channelsmentioning

confidence: 99%

Section: B Introduction Of D-wave Channelsmentioning

confidence: 99%

See 2 more Smart Citations

Radiative decay of theΛ*(1520)

2006

Self Cite

View full text Add to dashboard Cite

show abstract

“…The study of the amplitudes around the pole allows one to get the mass, the width, and through the residues at the pole, the coupling of the resonance to the different channels. Another one of such states is the Λ(1520) which couples to the πΣ(1385) and KΞ(1530) channels, although it has also an appreciable coupling to the πΣ andKN channels, responsible for its width, and to which it couples in D-waves [27]. 4 Clues to the nature of the ∆(1700) resonance from pion and photon induced reactions…”

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Hadron spectrum and hadrons in the nuclear medium

Vacas

The IVth International Conference on Quarks and Nuclear Physics

View full text Add to dashboard Cite

Unitary coupled channel analysis of theΛ(1520)resonance

Cited by 74 publications

References 53 publications

Radiative decay of theΛ*(1520)

Radiative decay of theΛ*(1520)

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

Hadron spectrum and hadrons in the nuclear medium

Contact Info

Product

Resources

About