Reggeized model for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>η</mml:mi></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi>η</mml:mi><mml:mo>′</mml:mo></mml:msup></mml:mrow></mml:math>photoproduction

Chiang, Wen-Tai; Yang, Shin Nan; Tiator, L.; Vanderhaeghen, Marc; Drechsel, D.

doi:10.1103/physrevc.68.045202

Cited by 133 publications

(217 citation statements)

References 33 publications

(47 reference statements)

Supporting

Mentioning

200

Contrasting

Order By: Relevance

“…Main figure shows data from [30] (TAPS 95), [31] (GRAAL 02), [32] (CLAS 02), [33] (Crystal Barrel 05), [34] (LNS 06), [35] (GRAAL 07), [36] (CLAS 09), [37] (Crystal Barrel 09), and [38] (Crystal Ball 10). The insert shows the average of the data, together with model results from [39] (MAID 1), [40] (MAID 2), [38] (SAID), and [41,42] (BnGa). Upper right corner: Total cross section for γn → nη for quasi-free photoproduction off neutrons bound in the deuteron or 3 He nuclei (see text) from [43,44,45].…”

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

“…Curves: model results. Solid: NH model (solution (I), see [92], [98]), dashed: ETA -MAID [40]. compared in Fig.…”

Section: Photoproduction Of η -Mesons Off Nucleonsmentioning

confidence: 99%

“…The MAID model largely overestimates the asymmetries between 1.6 -1.8 GeV, mainly because of the large contribution of the D 15 (1675) state, which is clearly not realistic. Agreement with the Reggeized version of MAID [40] is better [64] because a smaller N η branching ratio for the D 15 is used.…”

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

“…The same data were analyzed in the framework of a Reggeized effective Lagrangian model (ETA -MAID) [40]. There was also some evidence in this approach for contributions from an S 11 state in the figure) for the reaction γp → pη off free protons (magenta stars: [36], black open circles: [37], green stars: [97]) and off quasi-free protons (blue squares: [98] bound in the deuteron).…”

Section: Photoproduction Of η -Mesons Off Nucleonsmentioning

confidence: 99%

“…Before we discuss the experimental results, we first give a short summary of existing modelling approaches, which are quite diverse. For the reaction off free protons, they include the SAID partial wave analysis [38] (and references therein), effective Lagrangian models of different types such as the MAID isobar model (MAID 1) [39] and the Reggeized MAID isobar model (MAID 2) [40], different coupled channel models such as the Giessen model [57], the Bonn-Gatchina (BnGa) model [41,42], and even an approach based on the constituent quark model [58]. The γn → nη reaction was also analyzed in the framework of the MAID models [39,40] and with the BnGa coupled-channel analysis [46].…”

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

See 4 more Smart Citations

Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

View full text Add to dashboard Cite

The production of η and η mesons in photon-and hadron-induced reactions on free and quasifree nucleons and on nuclei is reviewed. The extensive database on γN → ηN , for both proton and neutron targets, is described in detail and its implications for the search for N resonances much heavier than the dominant S 11 (1535) discussed. Though less is currently known about the production of the η or of ηπ pairs, these also offer tantalizing prospects in the search for the missing isobars. The more limited data available on pion-induced production are still necessary ingredients in the partial wave analysis discussed.The production of the η-meson in pp and pn collisions shows once again the strong influence of the S 11 (1535) isobar, which is in contrast to the relatively weak behaviour seen near threshold for η production. This difference is reflected in the important final state interaction effects of the η in nuclei that may even lead to this meson being "bound" in some systems. The evidence for this is reviewed for both γA and pA collisions. The inclusive photoproduction of η, η , and ηπ pairs from nuclei provides further information regarding the production mechanism and the interaction of the η and η with nuclei and the ηπ pairs may even allow access to low mass ηA systems that are forbidden in direct single-meson photoproduction.

show abstract

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

“…Curves: model results. Solid: NH model (solution (I), see [92], [98]), dashed: ETA -MAID [40]. compared in Fig.…”

Section: Photoproduction Of η -Mesons Off Nucleonsmentioning

confidence: 99%

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

Section: Photoproduction Of η -Mesons Off Nucleonsmentioning

confidence: 99%

Section: Photoproduction Of η-Mesons Off Nucleonsmentioning

confidence: 99%

See 3 more Smart Citations

Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

View full text Add to dashboard Cite

show abstract

Meson photoproduction on the nucleon with polarized photons

D’Angelo

Bartalini

Bellini

et al. 2007

The IVth International Conference on Quarks and Nuclear Physics

View full text Add to dashboard Cite

Abstract. Beam asymmetry and differential cross-section for the reaction γp → ηp were measured from production threshold to 1500 MeV photon laboratory energy. The two dominant neutral decay modes of the η-meson, η → 2γ and η → 3π 0 , were analyzed. The full set of measurements is in good agreement with previously published results. Our data were compared with three models. They all fit satisfactorily the results but their respective resonance contributions are quite different. The possible photoexcitation of a narrow state N (1670) was investigated and no evidence was found.PACS. 13.60.Le Meson production -13.88.+e Polarization in interactions and scattering -25.20.Lj Photoproduction reactions

show abstract

Chiral constituent quark model study of the process γp → ηp

He¹,

Saghai²,

Li³

et al. 2008

Nstar 2007

View full text Add to dashboard Cite

Within a chiral constituent quark model approach, η-meson production on the proton via electromagnetic and hadron probes are studied. With few parameters, differential crosssection and polarized beam asymmetry for γp → ηp and differential cross section for π − p → ηn processes are calculated and successfully compared with the data in the centerof-mass energy range from threshold up to 2 GeV. The five known resonances S 11 (1535), S 11 (1650), P 13 (1720), D 13 (1520), and F 15 (1680) are found to be dominant in the reaction mechanisms in both channels. Possible roles plaied by new resonances are also investigated and in the photoproduction channel, significant contribution from S 11 -and D 15 -resonances, with masses around 1715 MeV and 2090 MeV, respectively, are deduced. For the so-called missing resonances, no evidence is found within the investigated reactions. The helicity amplitudes and decay widths of N * → πN, ηN are also presented, and found consistent with the PDG values.both differential cross section [2, 3,4,5], and polarized beam asymmetry [5,6]. The situation is very different for the π − p → ηn reaction. Actually, the data come mainly from measurements performed in 70's [7,8,9,10,11,12] and suffer from some inconsistencies [13]. A recent experiment, performed at BNL using the Crystal Ball spectrometer [14], offers a high quality data set, though limited to the close to threshold kinematics. Consequently, a combined data base embodying experimental results for both electromagnetic and strong channels turns out to be highly heterogeneous. In spite of that uncomfortable situation, recent intensive theoretical investigations interpreting both channels within a single approach has proven to be fruitful in revealing various aspects of the relevant reaction mechanisms, as discussed, e.g., in Refs. [1,15].In the photoproduction sector, a significant progress has been performed in recent years within coupled-channels formalisms [16,17,18,19] allowing to investigate a large number of intermediate and/or final meson-baryon (MB) states: γN → M B, with M B ≡ πN, ηN, ρN, σN, π∆, KΛ, KΣ.Those approaches have been reviewed in our recent paper [1]. Also advanced coupled-channels approaches are being developed [15,20,21,22] for the strong channels: πN → M B. However, fewer studies embody both electromagnetic and strong production processes. Moreover, those works are based on the effective Lagrangian approaches (ELA), where meson-baryon degrees of freedom are implemented, (see e.g. Refs. [17,18,23,24]). Investigations based on subnucleonic degrees of freedom, via constituent quark models (CQM) have been successful [1,25,26,27,28,29] in the interpretation of photoproduction data on the proton, namely, γp → πN, ηp, KΛ, and a recent work [30] has considered the π − p → ηn reaction.At the present stage, the ELA and the CQM approaches are complementary. However, the QCDinspired CQM developments deal on the one hand with more fundamental degrees of freedom and on the other hand require a much smaller number of adjustable p...

show abstract

Reggeized model forηandη′photoproduction

Cited by 133 publications

References 33 publications

Production of η and η′ mesons on nucleons and nuclei

Production of η and η′ mesons on nucleons and nuclei

Meson photoproduction on the nucleon with polarized photons

Chiral constituent quark model study of the process γp → ηp

Contact Info

Product

Resources

About