Photoproduction of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>ω</mml:mi></mml:math>meson on the proton near threshold

Strakovsky, I. I.; Prakhov, S.; Azimov, Ya. I.; Aguar-Bartolomé, P.; Annand, J. R. M.; Arends, H. J.; Bantawa, K.; Beck, R.; Bekrenev, V.; Berghäuser, H.; Braghieri, A.; Briscoe, W. J.; Brudvik, J.; Cherepnya, S.; Codling, R. F. B.; Collicott, C.; Costanza, S.; Demissie, B.; Downie, E. J.; Drexler, P.; Filʼkov, L.V.; Glazier, D. I.; Gregor, R.; Hamilton, D.; Heid, E.; Hornidge, D.; Jaeglé, I.; Jahn, O.; Jude, T. C.; Kashevarov, V. L.; Keshelashvili, I.; Kondratiev, R.; Korolija, M.; Kotulla, M.; Koulbardis, A.; Kruglov, S. P.; Krusche, B.; Lisin, V.; Livingston, K.; MacGregor, I. J. D.; Maghrbi, Y.; Manley, D. M.; Marinides, Z.; McGeorge, J. C.; McNicoll, E. F.; Mekterović, D.; Metag, V.; Middleton, D. G.; Mushkarenkov, A.; Nefkens, B. M. K.; Nikolaev, A.; Novotny, R.; Ortega, H.; Ostrick, M.; Otte, P. B.; Oussena, B.; Pedroni, P.; Pheron, F.; Polonski, A.; Robinson, J.; Rosner, G.; Rostomyan, T.; Schumann, S.; Sikora, M. H.; Starostin, A.; Supek, I.; Taragin, M. F.; Tarbert, C. M.; Thiel, M.; Thomas, A.; Unverzagt, M.; Watts, D. P.; Werthmüller, D.; Zehr, F.

doi:10.1103/physrevc.91.045207

Cited by 42 publications

(39 citation statements)

References 61 publications

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“…, and γp → ωp [42]. Compared to previous γp → π 0 ηp measurements, the present analysis improves both the statistical accuracy, with a total of 1.5 × 10 6 accumulated events, and the data quality, allowing a finer energy binning in the measurement of all observables needed for understanding the reaction dynamics.…”

Section: Introductionmentioning

confidence: 72%

Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron

Sokhoyan¹,

Prakhov²,

Fix³

et al. 2018

Phys. Rev. C

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Article:Sokhoyan, V., Prakhov, S., Fix, A. et The data available from the A2 Collaboration at MAMI were analyzed to select the γp → π 0 ηp reaction on an event-by-event basis, which allows for partial-wave analyses of three-body final states to obtain more reliable results, compared to fits to measured distributions. These data provide the world's best statistical accuracy in the energy range from threshold to E γ = 1.45 GeV, allowing a finer energy binning in the measurement of all observables needed for understanding the reaction dynamics. The results obtained for the measured observables are compared to existing models, and the impact from the new data is checked by the fit with the revised Mainz model.

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Section: Introductionmentioning

confidence: 72%

Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron

Sokhoyan¹,

Prakhov²,

Fix³

et al. 2018

Phys. Rev. C

Self Cite

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“…VMD assumes that a real photon can fluctuate into a virtual vector meson, which subsequently scatters off the target proton [12]. This method was used for the determination of the ωp and J/ψp scattering lengths [13,14].…”

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confidence: 99%

“…The φ-meson was studied in both, the charged (φ → K + K − ) and neutral (φ → K 0 S K 0 L , KK) decay modes. In this work, we report our determination of the total cross section σ t for the reaction γp → φp near threshold using the recent differential cross sections measured by the CLAS Collaboration [15], and the estimation of the φp scattering length |α φp |, which is compared with the previously evaluated scattering lengths for the ωp and J/ψp reaction [13,14].…”

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confidence: 99%

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Comparative analysis of ωp , ϕp , and J/ψp scattering lengths from A2, CLAS, and GlueX threshold measure

Strakovsky

Pentchev

Титов³

2020

Phys. Rev. C

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The high accuracy φ-meson photoproduction data from the CLAS experiment in Hall B of Jefferson Laboratory allow us to determine the near-threshold total cross section of the γp → φp reaction and use it for evaluating the φp scattering length α φp . These data result in an absolute value of |α φp | = (0.063 ± 0.010) fm, which is smaller than the typical hadron size. A comparative analysis of α φp with the previously determined scattering lengths for ωp and J/ψp from the A2 and GlueX experiments is performed.

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“…The A2-collaboration at MAMI reported differential cross sections from threshold to E γ = 1.4 GeV with a 15 MeV binning and full angular coverage [135]. No resonant contributions were discussed.…”

Section: Photoproduction Of ω Mesonsmentioning

confidence: 99%

Partial wave analysis

2017

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Abstract. The project A.2 of the SFB/TR16 "Subnuclear Structure of Matter" aimed at a combined multichannel partial wave analysis of all or of most data on pion and photo-induced reactions for invariant masses from the Δ(1232) region to 2300 MeV. In this review the most important results are presented. It is shown that the data and their partial wave analysis have improved our understanding of the dynamics of excited light-quark baryons significantly.

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Photoproduction of theωmeson on the proton near threshold

Cited by 42 publications

References 61 publications

Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron

Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron

Comparative analysis of ωp , ϕp , and J/ψp scattering lengths from A2, CLAS, and GlueX threshold measure

Partial wave analysis

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