Production of η' mesons in the pp→ppη' reaction at 3.67 GeV/c

Balestra, F.; Bedfer, Y.; Bertini, R.; Bland, L. C.; Brenschede, A.; Brochard, F.; Bussa, M.P.; Choi, Seonho; Dębowski, M.; Džemidžić, Mario; Faivre, J.C.; Falomkin, I.V.; Fava, L.; Ferrero, L.; Foryciarz, J.; Fröhlich, I.; Фролов, В.; Garfagnini, R.; Grasso, A.; Heinz, S.; Ivanov, V. V.; Jacobs, W. W.; Kühn, W.; Maggiora, A.; Maggiora, M.; Manara, A.; Panzieri, D.; Pfaff, H. W.; Piragino, G.; Pontecorvo, G. B.; Popov, A.; Ritman, J.; Salabura, P.; Tchalyshev, V.; Tosello, F.; Vigdor, S. E.; Zosi, G.

doi:10.1016/s0370-2693(00)01015-7

Cited by 44 publications

(35 citation statements)

References 51 publications

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“…(5.1). 199,205,206,207,208] was achieved with ε = 0.75 +0.20 −0.15 MeV [208], which is quite consistent with the original assumptions [210].…”

Section: η Production In Pp Collisionssupporting

confidence: 82%

“…[196,197,198,199,200,201,202] (closed red circles), [203] (blue crosses), and [204] (green star) and the η data from Ref. [198,199] (blue crosses), [205] (green star), and [206,207,208] (closed red circles). The preliminary η point at much higher energy [209] is not shown.…”

Section: η Production In Pp Collisionsmentioning

confidence: 99%

“…Only three groups have studied η production near threshold through the missing mass in the pp → ppX reaction and the existing total cross section data [198,199,205,206,207,208] are compared to those for η production in Fig. 34.…”

Section: η Production In Pp Collisionsmentioning

confidence: 99%

“…34. The first thing to notice is that η production is typically a factor ∼ 30 weaker than that of the η so that, for the highest energy point [205], the pp missing-mass criterion had to be supplemented through an ηππ selection in order to reduce the background. The even more striking point is that the curve of Eq.…”

Section: η Production In Pp Collisionsmentioning

confidence: 99%

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Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

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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.

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“…(5.1). 199,205,206,207,208] was achieved with ε = 0.75 +0.20 −0.15 MeV [208], which is quite consistent with the original assumptions [210].…”

Section: η Production In Pp Collisionssupporting

confidence: 82%

Section: η Production In Pp Collisionsmentioning

confidence: 99%

Section: η Production In Pp Collisionsmentioning

confidence: 99%

Section: η Production In Pp Collisionsmentioning

confidence: 99%

See 2 more Smart Citations

Production of η and η′ mesons on nucleons and nuclei

Krusche¹,

Wilkin²

2015

Progress in Particle and Nuclear Physics

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“…The COSY-11 acceptance for Figure 3. Experimental total cross sections for the ω production [8][9][10][11][12][13] and η production [11,[14][15][16][17][18][19], together with the present data points. Solid lines present theoretical predictions for the ω and η production cross sections from Ref.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Near-threshold charged kaon pair production in two protons collisions

Gil

Smyrski

2016

EPJ Web Conf.

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Abstract. The pp → ppK + K − reaction was measured near threshold at excess energy Q = 4.5 MeV using the COSY-11 detection system installed at the COSY-Juelich accelerator. Preliminary value of upper limit of the total cross section was determined. This limit indicates that an enhancement of the total cross section close to the threshold, caused by the final state interaction, is smaller than suggested by extrapolation of data measured at higher energies. Physics motivationThe energy dependence of the pp → ppK + K − total cross section close to threshold is very sensitive to the interactions between particles in the final state, and therefore is well suited for studies of these interactions. There are many interesting topics connected with the interactions of the final state kaons and protons. For example, the K + K − interaction is crucial for understanding the structure of the scalar mesons f 0 (980) and a 0 (980), which according Ref. [1,2] are KK molecules. In turn, the K − p interaction is interesting from the point of view of study the nature of the Λ(1405) hyperon, which is considered as a K − p molecular state [3]. There are also some astrophysical aspects of studying kaons production reactions, like description of neutron stars structure [4]. Elementary reactions of kaon pair production in pp collisions are also important for better understanding of the properties of kaons inside dense baryonic matter [5]. The existing data for the kaon pair production in pp collisions were measured for excess energies higher than Q = 6 MeV, with exception of one point at 3 MeV, for which only upper limit of the total cross section was determined. On the other hand, data very close to threshold (for Q < 6 MeV) are crucial for distinguishing between various models of the final state interaction (FSI) in the ppK + K − system. Therefore, we performed a high luminosity measurement at Q = 4.5 MeV. ExperimentThe measurement was performed with the COSY-11 detection system, described in details in Ref. [6], at the COSY-Juelich accelerator. A principle of the measurement is presented in Fig. 1. Internal proton beam of the COSY was scattered on the COSY-11 H 2 cluster target. The beam momentum

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Near threshold production of the pseudoscalar mesons at the COSY-11 facility

et al. 2008

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We summarise measurements of the COSY-11 collaboration concerning the excitation functions of the near threshold pseudoscalar meson production in the proton-proton interaction. The results are discussed in the context of the meson-nucleon and hyperon-nucleon interactions. We conclude that the η-proton interaction is significantly stronger than the η ′ -proton interaction. Similarly, we found that the hyperon Λ interacts with the nucleon considerably stronger than the hyperon Σ, and that the interaction of K − -proton is much stronger than this of the K + -proton.

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Production of η' mesons in the pp→ppη' reaction at 3.67 GeV/c

Cited by 44 publications

References 51 publications

Production of η and η′ mesons on nucleons and nuclei

Production of η and η′ mesons on nucleons and nuclei

Near-threshold charged kaon pair production in two protons collisions

Near threshold production of the pseudoscalar mesons at the COSY-11 facility

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