Observation and quantum numbers determination of the E(1420) meson in π−p interactions at 3.95 GeV/c

Dionisi, C.; Gavillet, Ph.; Armenteros, R.; Losty, M. J.; Loverre, P.; Mazzucato, M.; Montanet, L.; Benitez, M. Aguilar; Fernández, C.; Ferrando, A.; Rubio, J. A.; Salicio, J.; Dobrzyński, L.; Pennino, D.; Rodebäck, S.; Sjögren, I.; Holmgren, S. O.

doi:10.1016/0550-3213(80)90249-7

Cited by 82 publications

(23 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…with the following notes: (i) the value of Γ a1→ρπ is not precisely known; there are experimental data suggesting this decay channel to be dominant for a 1 [34] and thus we estimate the possible range for Γ a1→ρπ from the interval for the full a 1 decay width [= (250 − 600) MeV]; (ii) according to PDG the channel f 1 (1420) → K ⋆ K is dominant within the channel f 1 (1420) → KKπ, with the latter being the overall dominant decay mode for f 1 (1420); we have assumed Γ f1(1420)→KKπ to be equal to the full decay width Γ f1(1420) = (54.9 ± 2.6) MeV and determined Γ f1(1420)→K ⋆ K using an averaged branching ratio Γ f1(1420)→K ⋆ K /Γ f1(1420)→KKπ = (0.8 ± 0.09) from Refs. [35] and [36].…”

Section: A Input and Constraints For The Fitmentioning

confidence: 99%

Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons

et al. 2013

View full text Add to dashboard Cite

We study scalar, pseudoscalar, vector, and axial-vector mesons with non-strange and strange quantum numbers in the framework of a linear sigma model with global chiral U (N f )L × U (N f )R symmetry. We perform a global fit of meson masses, decay widths, as well as decay amplitudes. The quality of the fit is, for a hadronic model that does not consider isospin-breaking effects, surprisingly good. We also investigate the question whether the scalarqq states lie below or above 1 GeV and find the scalar states above 1 GeV to be preferred asqq states. Additionally, we also describe the axial-vector resonances asqq states.

show abstract

Section: A Input and Constraints For The Fitmentioning

confidence: 99%

Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The first evidence for the f 1 (1420) was seen in the K * K mass spectrum in π − p reactions [12], but it is questionable because the structures around 1.4−1.5 GeV (e.g., η(1405), η(1475)) are found to be complicated. Detailed analyses [13] confirmed its existence and the spin-parity is determined to be J P C = 1 ++ .…”

Section: φ (1 3 S 1 )mentioning

confidence: 99%

Strange quarkonium states at BESIII

2015

View full text Add to dashboard Cite

We present physics opportunities and topics with the ss states (strangeonia) that can be studied with the BESIII detector operating at the BEPCII collider. Though the φ and η/η ′ states have long been established experimentally, only a handful of strangeonia are well known, in contrast to the rich cc charmoium system. An overview of the ss states and their experimental status is presented in this paper. The BESIII experiment has collected the world's largest samples of J/ψ, ψ(2S), ψ(3770), and direct e + e − annihilations at energies below the J/ψ and above 3.8 GeV, and will continue to accumulate high quality, large integrated luminosity in the τ -charm energy region. These data, combined with the excellent performance of the BE-SIII detector, will offer unprecedent opportunities to explore the ss system. In this paper we describe the experimental techniques to explore strangeonia with the BESIII detector.

show abstract

“…The bands stand for the error bar of the cutoff Λ. The experimental data are from Refs [8][9][10][11]…”

mentioning

confidence: 99%

Productions of f1(1420) in pion and kaon induced reactions

Wang

et al. 2019

Phys. Rev. D

View full text Add to dashboard Cite

The f 1 (1420) productions via pion and kaon induced reactions on a proton target are investigated in an effective Lagrangian approach. Two treatments of the t-channel Born term, the Feynman model and the Regge model, are introduced to calculate the total and differential cross sections of the π − p → f 1 (1420)n and K − p → f 1 (1420)Λ reactions. The numerical results indicate that the experimental data of the total cross section of the π − p → f 1 (1420)n reaction can be reproduced in both the Feynman and the Regge models. Based on the parameters determined in the pion induced reaction, the cross sections of the K − p → f 1 (1420)Λ reaction, about which there is little data found in the literature, are predicted in the same beam momentum range. It is found that the line shapes of the total cross section obtained in a kaon induced reaction with two treatments are quite different. The cross sections for both reactions are at an order of magnitude of µb, or larger, at a beam momenta up to 10 GeV/c. The differential cross sections for both pion and kaon induced reactions are also present. It is found that in the Regge model, the t channel provides a sharp increase at extreme forward angles. The results suggest that the experimental study of the f 1 (1420) in the kaon induced reaction on a proton target is as promising as in the pion induced reaction. Such an experimental measurement is also very helpful to clarify the production mechanism of the f 1 (1420).

show abstract

Observation and quantum numbers determination of the E(1420) meson in π−p interactions at 3.95 GeV/c

Cited by 82 publications

References 28 publications

Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons

Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons

Strange quarkonium states at BESIII

Productions of f1(1420) in pion and kaon induced reactions

Contact Info

Product

Resources

About