Production of φ mesons in near-threshold π

Титов, А. И.; Kämpfer, B.; Reznik, B.L.

doi:10.1007/s100500050427

Cited by 51 publications

(95 citation statements)

References 26 publications

(66 reference statements)

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“…Finally, the pp and pn final-state interactions have been implemented using the Jost function to weight the distributions in the simulation [60]. This model, including the changes with respect to the original resonance model [31] mentionned above and summarized in table 3 is called "model A" in the following.…”

Section: Finalmentioning

confidence: 99%

Study of exclusive one-pion and one-eta production using hadron and dielectron channels in pp reactions at kinetic beam energies of 1.25 GeV and 2.2 GeV with HADES

Agakishiev¹,

Álvarez‐Pol²,

Bałanda³

et al. 2012

Eur. Phys. J. A

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Abstract. We present measurements of exclusive π +,0 and η production in pp reactions at 1.25 GeV and 2.2 GeV beam kinetic energy in hadron and dielectron channels. In the case of π + and π 0 , high-statistics invariant-mass and angular distributions are obtained within the HADES acceptance as well as acceptancecorrected distributions, which are compared to a resonance model. The sensitivity of the data to the yield Page 2 of 17 Eur. Phys. J. A (2012) 48: 74 and production angular distribution of Δ(1232) and higher-lying baryon resonances is shown, and an improved parameterization is proposed. The extracted cross-sections are of special interest in the case of pp → ppη, since controversial data exist at 2.0 GeV; we find σ = 0.142 ± 0.022 mb. Using the dielectron channels, the π 0 and η Dalitz decay signals are reconstructed with yields fully consistent with the hadronic channels. The electron invariant masses and acceptance-corrected helicity angle distributions are found in good agreement with model predictions.

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Section: Finalmentioning

confidence: 99%

Study of exclusive one-pion and one-eta production using hadron and dielectron channels in pp reactions at kinetic beam energies of 1.25 GeV and 2.2 GeV with HADES

Agakishiev¹,

Álvarez‐Pol²,

Bałanda³

et al. 2012

Eur. Phys. J. A

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“…The first effect is already included in the Delta Dalitz two-step simulation as they use measured data. For the OBE calculations the factorization [41,42] …”

Section: −→ Npementioning

confidence: 99%

A versatile method for simulating pp $ \rightarrow$ ppe+e- and dp $ \rightarrow$ pne+e-pspec reactions

et al. 2010

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Abstract.We have developed a versatile software package for the simulation of di-electron production in pp and dp collisions at moderate beam kinetic energies (1-2 GeV). Particular attention has been paid to incorporate different descriptions of the Dalitz decay Δ → Ne + e − via a common interface. In addition, suitable parameterizations for the virtual bremsstrahlung process NN → NNe + e − based on one-boson exchange models have been implemented. Such simulation tools with high flexibility of the framework are important for the interpretation of the di-electron data taken with the HADES spectrometer and demonstrates the wide applicability within the field of nuclear and hadronic physics.

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“…In order to calculate the πD-box diagram, two different form factors for the vector-two-pseudoscalar vertex are considered. One is used in the works of [2,4], which is inspired by the empirical form factors used in the study of vector meson decays [10]. The other one, is an exponential parametrization for an off-shell pion evaluated using QCD sum rules [11] using at the same time the experimental value of the D * Dπ coupling, g exp D * Dπ [5].…”

Section: The ρ(ω) D * Systemmentioning

confidence: 99%

Scalar, axial-vector and tensor resonances from the ρD∗, ωD∗ interaction in the hidden gauge formalism

Molina¹,

Nagahiro²,

Oset³

et al. 2010

AIP Conference Proceedings

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Abstract. We apply a unitary approach together with a set of hidden-gauge Lagrangians to study the vector-vector interaction. We study the case of the ρ(ω)D * interaction within the model. In I = 1/2 we get strong enough attraction to bind the system. Concretely, we get one resonance for each spin J = 0, 1, 2. For J = 1 and 2 these resonances can be easily identified with the D * (2460) and D * (2640). Whereas the state for J = 0 with mass M ∼ 2600 MeV is a prediction of the model. In I = 3/2 we get a repulsive interaction and hence no exotic dynamically generated states.

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Production of φ mesons in near-threshold π

Cited by 51 publications

References 26 publications

Study of exclusive one-pion and one-eta production using hadron and dielectron channels in pp reactions at kinetic beam energies of 1.25 GeV and 2.2 GeV with HADES

Study of exclusive one-pion and one-eta production using hadron and dielectron channels in pp reactions at kinetic beam energies of 1.25 GeV and 2.2 GeV with HADES

A versatile method for simulating pp $ \rightarrow$ ppe+e- and dp $ \rightarrow$ pne+e-pspec reactions

Scalar, axial-vector and tensor resonances from the ρD∗, ωD∗ interaction in the hidden gauge formalism

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